75000 - Document - Document and Entity Information
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75010 - Statement - Consolidated Statements of Earnings
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75020 - Statement - Consolidated Statements of Comprehensive Earnings
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75030 - Statement - Consolidated Statements of Comprehensive Earnings (Parenthetical)
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75040 - Statement - Consolidated Balance Sheets
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75050 - Statement - Consolidated Balance Sheets (Parenthetical)
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75060 - Statement - Consolidated Statements of Cash Flows
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75070 - Statement - Consolidated Statements of Total Equity
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75080 - Statement - Consolidated Statements of Total Equity (Parenthetical)
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995457 - Disclosure - Cybersecurity Risk Management, Strategy and Governance
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995467 - Disclosure - Accounting Policies
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995477 - Disclosure - Revenue Recognition
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995487 - Disclosure - Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale
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995497 - Disclosure - Goodwill and Other Intangible Assets
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995507 - Disclosure - Accounts Receivable, Net
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995517 - Disclosure - Inventories, Net
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995527 - Disclosure - Property, Plant and Equipment, Net
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995537 - Disclosure - Debt
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995547 - Disclosure - Financial Instruments
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995557 - Disclosure - Income Taxes
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995567 - Disclosure - Retirement and Other Benefit Plans
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995577 - Disclosure - Stock-Based Compensation
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995587 - Disclosure - Leases
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995597 - Disclosure - Shareholders' Equity
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995607 - Disclosure - Commitments and Contingencies
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995617 - Disclosure - Segments
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995627 - Disclosure - Revenues and Gross Profit
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995637 - Disclosure - Supplemental Cash Flow Information
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995647 - Disclosure - Other Operating Income, Net
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995657 - Disclosure - Other Nonoperating Income, Net
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995667 - Disclosure - Quarterly Information (Unaudited)
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995677 - Disclosure - Accounting Policies (Policies)
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995687 - Disclosure - Accounting Policies (Tables)
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995697 - Disclosure - Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale (Tables)
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995707 - Disclosure - Goodwill and Other Intangible Assets (Tables)
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995717 - Disclosure - Accounts Receivable, Net (Tables)
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995727 - Disclosure - Inventories, Net (Tables)
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995737 - Disclosure - Property, Plant and Equipment, Net (Tables)
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995747 - Disclosure - Debt (Tables)
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995757 - Disclosure - Income Taxes (Tables)
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995767 - Disclosure - Retirement and Other Benefit Plans (Tables)
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995777 - Disclosure - Stock-Based Compensation (Tables)
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995787 - Disclosure - Leases (Tables)
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995797 - Disclosure - Commitments and Contingencies (Tables)
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995807 - Disclosure - Segments (Tables)
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995817 - Disclosure - Revenues and Gross Profit (Tables)
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995827 - Disclosure - Supplemental Cash Flow Information (Tables)
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995837 - Disclosure - Quarterly Information (Unaudited) (Tables)
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995847 - Disclosure - Accounting Policies - Additional Information (Detail)
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995857 - Disclosure - Accounting Policies - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Detail)
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995867 - Disclosure - Accounting Policies - Estimated Service Lives for Property, Plant and Equipment (Detail)
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995877 - Disclosure - Accounting Policies - Components of Changes in Accumulated Other Comprehensive Loss and Related Cumulative Noncurrent Deferred Tax Assets (Detail)
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995887 - Disclosure - Accounting Policies - Reclassifications Out of Accumulated Other Comprehensive Loss (Detail)
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995897 - Disclosure - Accounting Policies - Reclassifications Out of Accumulated Other Comprehensive Loss (Detail) 2
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995907 - Disclosure - Accounting Policies - Basic and Diluted Earnings from Continuing Operations Per Common Share (Detail)
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995917 - Disclosure - Accounting Policies - Basic and Diluted Earnings from Continuing Operations Per Common Share (Detail) 2
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995927 - Disclosure - Accounting Policies - Basic and Diluted Earnings from Continuing Operations Per Common Share (Detail) 3
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995937 - Disclosure - Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale - Additional Information (Detail)
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995947 - Disclosure - Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale - Summary of Fair Values of Assets Acquired and Liabilities Assumed (Detail)
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995957 - Disclosure - Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale - Summary of Fair Values of Assets Acquired and Liabilities Assumed (Parenthetical) (Detail)
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995967 - Disclosure - Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale - Summary of Unaudited Pro Forma Financial Information (Detail)
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995977 - Disclosure - Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale - Summary of Discontinued Operations (Detail)
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995987 - Disclosure - Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale - Summary of Discontinued Operations (Detail) 2
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995997 - Disclosure - Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale - Summary of Assets and Liabilities held for Sale (Detail)
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996007 - Disclosure - Goodwill and Other Intangible Assets - Changes in Goodwill (Detail)
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996017 - Disclosure - Goodwill and Other Intangible Assets - Intangible Assets Subject to Amortization (Detail)
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996027 - Disclosure - Goodwill and Other Intangible Assets - Intangible Assets Deemed to Indefinite Life that are Therefore Not Amortized (Detail)
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996037 - Disclosure - Goodwill and Other Intangible Assets - Additional Information (Detail)
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996047 - Disclosure - Goodwill and Other Intangible Assets - Intangible Assets acquired (Details)
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996057 - Disclosure - Goodwill and Other Intangible Assets - Estimated Amortization Expense of Intangible Assets (Detail)
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996067 - Disclosure - Accounts Receivable, Net - Schedule of Accounts Receivable Net (Detail)
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996077 - Disclosure - Inventories, Net - Schedule of Inventories Net (Detail)
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996087 - Disclosure - Property, Plant and Equipment, Net - Property, Plant and Equipment, Net (Detail)
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996097 - Disclosure - Property, Plant and Equipment, Net - Additional Information (Detail)
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996107 - Disclosure - Debt - Long-Term Debt (Detail)
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996117 - Disclosure - Debt - Long-Term Debt (Parenthetical) (Detail)
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996127 - Disclosure - Debt - Additional Information (Detail)
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996137 - Disclosure - Debt - Schedule of Principal Amount, Effective Interest Rate and Maturity Date for Corporation's Senior Notes (Detail)
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996147 - Disclosure - Debt - Schedule of Corporation's Long-Term Debt Maturities (Detail)
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996157 - Disclosure - Financial Instruments - Additional Information (Detail)
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996167 - Disclosure - Income Taxes - Components of Income Tax Expense From Continuing Operations (Detail)
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996177 - Disclosure - Income Taxes - Components Domestic and Foreign Pretax Earnings From Continuing Operations (Detail)
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996187 - Disclosure - Income Taxes - Components Domestic and Foreign Pretax Earnings From Continuing Operations (Detail) 2
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996197 - Disclosure - Income Taxes - Additional Information (Detail)
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996207 - Disclosure - Income Taxes - Summary of Effective Income Tax Rate On Continuing Operations (Detail)
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link:calculationLink
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996217 - Disclosure - Income Taxes - Summary of Effective Income Tax Rate On Continuing Operations (Detail) 2
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996227 - Disclosure - Income Taxes - Summary of the Amounts of Income Taxes Paid (Refunded) by the Company (Detail)
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996237 - Disclosure - Income Taxes - Summary of the Amounts of Income Taxes Paid (Refunded) by the Company (Detail) 2
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996247 - Disclosure - Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail)
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996257 - Disclosure - Retirement and Other Benefit Plans - Schedule of Components of Net Periodic Benefit Cost (Detail)
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996267 - Disclosure - Retirement and Other Benefit Plans - Net Periodic Benefit Cost Recognized Pretax Amounts in Comprehensive Earnings (Detail)
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996277 - Disclosure - Retirement and Other Benefit Plans - Net Periodic Benefit Credit or Cost Not Yet Recognized (Detail)
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996287 - Disclosure - Retirement and Other Benefit Plans - Change in Projected Benefit Obligation (Detail)
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996297 - Disclosure - Retirement and Other Benefit Plans - Schedule of Change In Plan Assets (Detail)
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996307 - Disclosure - Retirement and Other Benefit Plans - Schedule of Funded Status (Detail)
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996317 - Disclosure - Retirement and Other Benefit Plans - Schedule of Amounts Recognized on Consolidated Balance Sheet (Detail)
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996327 - Disclosure - Retirement and Other Benefit Plans - Additional Information (Detail)
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996337 - Disclosure - Retirement and Other Benefit Plans - Schedule of Accumulated Benefit Obligations in Excess of Plan Assets (Detail)
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996347 - Disclosure - Retirement and Other Benefit Plans - Schedule of Weighted-Average Assumptions (Detail)
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996357 - Disclosure - Retirement and Other Benefit Plans - Schedule of Target Assets Allocation (Detail)
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996367 - Disclosure - Retirement and Other Benefit Plans - Schedule of Fair Values of Pension Plan Assets by Asset Class and Fair Value Hierarchy Level (Detail)
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996377 - Disclosure - Retirement and Other Benefit Plans - Schedule of Expected Benefit Payments (Detail)
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996387 - Disclosure - Retirement and Other Benefit Plans - Schedule of Assumed Health Care Cost Trend Rate (Detail)
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996397 - Disclosure - Stock-Based Compensation - Additional Information (Detail)
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996407 - Disclosure - Stock-Based Compensation - Summary Information for Restricted Stock Awards and Incentive Compensation Stock Awards (Detail)
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996417 - Disclosure - Stock-Based Compensation - Summary Information for Stock Options (Detail)
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996427 - Disclosure - Stock-Based Compensation - Schedule of Stock-Based Compensation Expense (Detail)
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996437 - Disclosure - Stock-Based Compensation - Stock-Based Compensation Expense in Future for Outstanding Awards (Detail)
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996447 - Disclosure - Leases - Additional Information (Detail)
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996457 - Disclosure - Leases - Summary of Components of Lease Cost (Detail)
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996467 - Disclosure - Leases - Summary of Balance Sheet Classifications of Operating and Finance Leases (Detail)
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996477 - Disclosure - Leases - Summary of Balance Sheet Classifications of Operating and Finance Leases (Detail) 2
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996487 - Disclosure - Leases - Summary of Weighted-average Remaining Lease Terms and Discount Rates (Detail)
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996497 - Disclosure - Leases - Summary of Future Lease Payments (Detail)
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996507 - Disclosure - Leases - Summary of Future Lease Payments (Detail) 2
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996517 - Disclosure - Shareholders' Equity - Additional Information (Detail)
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996527 - Disclosure - Commitments and Contingencies - Additional Information (Detail)
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996537 - Disclosure - Commitments and Contingencies - Changes in Asset Retirement Obligations (Detail)
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996547 - Disclosure - Commitments and Contingencies - Contractual Purchase Commitments (Detail)
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996557 - Disclosure - Commitments and Contingencies - Schedule of Future Minimum Contracts of Affreightment and Royalty Commitments for All Noncancelable Agreements (Detail)
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link:calculationLink
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996567 - Disclosure - Segments - Additional Information (Detail)
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996577 - Disclosure - Segments - Schedule of Consolidated Earnings from Continuing Operations Before Income Tax Expense (Detail)
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996587 - Disclosure - Segments - Financial Data for Continuing Operations for Company's Reportable Business Segments (Detail)
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996597 - Disclosure - Revenues and Gross Profit - Total Revenues and Gross Profit (Loss) by Product Line (Detail)
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996607 - Disclosure - Revenues and Gross Profit - Domestic and Foreign Total Revenues (Detail)
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996617 - Disclosure - Revenues and Gross Profit - Additional Information (Detail)
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996627 - Disclosure - Revenues and Gross Profit - Additional Information (Detail 1)
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996627 - Disclosure - Revenues and Gross Profit - Additional Information (Detail 1) [Default]
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996637 - Disclosure - Supplemental Cash Flow Information - Schedule of Noncash Investing and Financing Activities (Detail)
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996647 - Disclosure - Supplemental Cash Flow Information - Supplemental Disclosures of Cash Flow Information (Detail)
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996657 - Disclosure - Supplemental Cash Flow Information - Additional Information (Detail)
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996667 - Disclosure - Other Operating Income, Net - Additional Information (Detail)
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996677 - Disclosure - Other Nonoperating Income, Net - Additional Information (Detail)
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996687 - Disclosure - Quarterly Information (Unaudited) - Quarterly Results of Continuing Operations (Detail)
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Permits
Permits [Member]
Permits.
Summary of Future Lease Payments
Schedule Of Future Minimum Rental Payments For Operating And Financing Leases Table [Text Block]
Schedule of future minimum rental payments for operating and financing leases.
Weighted-Average Grant-Date Fair Value, Distributed
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Supplemental Disclosures of Cash Flow Information
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Business Combination, Acquisition-Related Cost, Expense
Acquisition related expenses
Weighted-Average Exercise Price, Terminated
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Retirement Plan Type
Retirement Plan Type [Axis]
Segments
Segments [Domain]
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Foreign pretax earnings (loss)
Foreign
Environmental Matters
Environmental Costs, Policy [Policy Text Block]
Proceeds from Short-Term Debt
Proceeds from Short-Term Debt, Total
Proceeds from borrowings
Earnings from continuing operations
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Earnings from continuing operations
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three
2028
Concentration Risk Type
Concentration Risk Type [Axis]
Liability, Defined Benefit Pension Plan, Current
Current liability
Total finance lease liabilities
Present value of lease payments
Finance Lease, Liability
Present value of lease payments
Deferred tax assets related to:
Deferred Tax Assets, Gross [Abstract]
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Finance Lease, Liability, to be Paid, Year Four
2029
Disposal Group, Including Discontinued Operation, Inventory, Current
Inventories, net
Combined pension plan and SERP contributions
Employer contributions
Defined Benefit Plan, Plan Assets, Contributions by Employer
Effective Income Tax Rate Reconciliation, Tax Credit, Amount [Abstract]
Tax credits:
Additions to property, plant and equipment
Additions to property, plant and equipment
Capital Expenditure, Discontinued Operations
Capital expenditures
Purchase of restricted investments to discharge long-term debt
Purchase Of Restricted Investments To Discharge Long-Term Debt
Purchase of restricted investments to discharge long-term debt
Long-term debt
Long-Term Debt, Excluding Current Maturities
Long-Term Debt, Excluding Current Maturities, Total
Schedule of Long-Term Debt Instruments [Table Text Block]
Long-Term Debt
Payments For (Proceeds From) Limited Liability Company
Payments for (proceeds from) limited liability company.
Investments in limited liability companies
Effective Income Tax Rate Reconciliation Changes In Unrecognized Tax Benefits Percent
Effective income tax rate reconciliation changes in unrecognized tax benefits percent.
Changes in unrecognized tax benefits
Equity [Abstract]
Entity Current Reporting Status
Entity Current Reporting Status
Other Commitment
Capital expenditures
Other Commitment, Total
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax
Pretax earnings from operations
Options granted prior to 2013
Stock Options One [Member]
Stock options one.
Significant Observable Inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Total net deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Common stock, shares authorized
Common Stock, Shares Authorized
Property, Plant and Equipment, Transfers and Changes
Increase in fair value of property, plant and equipment
Finite-Lived Intangible Asset, Expected Amortization, Year Four
2029
Other Nonoperating Income (Expense) [Member]
Other Nonoperating Income, Net
Aggregate intrinsic values for stock awards
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested
Investment, Policy [Policy Text Block]
Restricted Investments
Product and Service
Product and Service [Axis]
Document Fiscal Period Focus
Document Fiscal Period Focus
Total lease payments
Finance Lease, Liability, to be Paid
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years
Years 2031 -2035
Including Acquisition Bridge Debt
Including Acquisition Bridge Debt [Member]
Including acquisition bridge debt.
Expected long-term rate of return on assets
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets
Interest rate on notes
Debt Instrument, Interest Rate, Stated Percentage
Settlement of senior notes and related interest payments
Intangible assets, excluding goodwill
Intangible Assets Excluding Goodwill, Held-for-Sale
Intangible assets excluding goodwill, held-for-sale.
Revenue from Contract with Customer [Abstract]
Entity Shell Company
Entity Shell Company
Liabilities settled
Asset Retirement Obligation Liabilities Settled Recoveries
Asset retirement obligation liabilities settled recoveries.
Dividends declared
Dividends, Common Stock, Cash
Less: distributed and undistributed earnings attributable to unvested participating securities
Participating Securities, Distributed and Undistributed Earnings (Loss), Diluted
Total inventories
Inventory, Gross
Service
Service [Member]
Defined contribution plan name
Defined Contribution Plan, Description
Cash and cash equivalents
Cash and Cash Equivalent
Cash and Cash Equivalents, at Carrying Value, Total
Cement and California Ready Mix Businesses
Discontinued Operations [Member]
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax
Actuarial (gain) loss - Gross
Schedule of Corporation's Long-Term Debt Maturities
Schedule of Maturities of Long-Term Debt [Table Text Block]
Distribution to owners of noncontrolling interest
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
Finance Lease, Liability, Classified as Held for Sale
Present value of lessee's discounted obligation for lease payments from finance lease classified as held for sale.
Less: leases classified as held for sale
Net projected benefit obligation at beginning of year
Net projected benefit obligation at end of year
Defined Benefit Plan, Benefit Obligation
Defined Benefit Plan, Expected Future Benefit Payment, Year Two
2027
Cybersecurity Risk Management, Strategy, and Governance [Abstract]
Common stock, shares issued
Common Stock, Shares, Issued
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]
Texas
TEXAS
Cybersecurity Risk Board of Directors Oversight [Text Block]
Revenue Recognition [Table]
Revenue Recognition [Table]
Revenue recognition.
Statement [Table]
Statement [Table]
Other Comprehensive Income (Loss), Defined Benefit Plan, Adjustment for Settlement or Curtailment Gain (Loss), Tax
Amount recognized in net periodic pension cost due to settlement, tax
Right-of-use assets obtained in exchange for new operating lease liabilities
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Federal Tax Authority
Internal Revenue Service (IRS) [Member]
Percentage of discount rate to market value on the incentive compensation
Percentage Of Discount Rate To Market Value On Incentive Compensation
Percentage of discount rate to the market value on the incentive compensation.
Percentage of Aggregate Business Net Sales in Top Ten Sales states
Percentage Of Aggregate Business Net Sales In Top Ten Sales States [Member]
Percentage of aggregate business net sales in top ten sales states.
Guarantor Obligations, Nature
Guarantor Obligations, Nature [Domain]
Schedule of Amounts Recognized on Consolidated Balance Sheets
Schedule of Amounts Recognized in Balance Sheet [Table Text Block]
Payments to acquire businesses gross
Payments to Acquire Businesses, Gross
Operating Leases:
Lessee Operating Leases [Abstract]
Lessee operating leases.
Balance at beginning of year
Balance at end of year
Asset Retirement Obligation
Asset Retirement Obligation, Total
Common stock remaining under repurchase authorization
Share Repurchase Program, Remaining Authorized, Number of Shares
Statement [Line Items]
Statement [Line Items]
Business Acquisition, Acquiree
Business Combination [Domain]
Revenue Recognition
Revenue from Contract with Customer [Policy Text Block]
Entity Filer Category
Entity Filer Category
Reclassification, Comparability Adjustment [Policy Text Block]
Reclassifications
Settlement charge
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement
Settlement charge
Inventory Finished Goods
Inventory Finished Goods [Member]
Inventory finished goods.
Mid-sized to Large Cap
Defined Benefit Plan, Equity Securities, US, Mid Cap [Member]
Finance Lease Right Of Use Assets
Finance Lease Right Of Use Assets [Member]
Finance lease right-of-use assets.
Debt Instrument, Redemption, Period Two [Member]
Prior to June 1, 2054
Total Liabilities and Equity
Liabilities and Equity
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Less: current maturities
Long-Term Debt, Current Maturities
Long-Term Debt, Current Maturities, Total
Current maturities of long-term debt
Stock-Based Compensation Expense in Future for Outstanding Awards
Share-Based Payment Arrangement, Nonvested Award, Cost [Table Text Block]
Long-Term Debt, Maturity, Year Three
2028
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Weighted-Average Exercise Price, Exercisable at December 31, 2025
Disposal Group, Including Discontinued Operation, Costs of Goods Sold
Cost of revenues
3.500% Senior Notes, Due 2027
Three Point Five Zero Zero Percent Senior Notes Due Twenty Twenty Seven [Member]
Three point five zero zero percent senior notes due twenty twenty seven.
Long-Lived Tangible Asset
Long-Lived Tangible Asset [Axis]
Finance Lease, Liability, to be Paid, Year Three
2028
Capital Addition Purchase Commitments
Capital Addition Purchase Commitments [Member]
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]
Trade names
Trade Names [Member]
Financial Instruments
Financial Instruments Disclosure [Text Block]
Unrecognized tax benefits, excluding interest and correlative effects
Unrecognized Tax Benefits Excluding Interest And Correlative Effects
Unrecognized tax benefits excluding interest and correlative effects.
Unrecognized tax benefits reversed into income upon the statute of limitations expiration
Unrecognized Tax Benefits Reversed Into Income Upon The Statute Of Limitations Expiration
Unrecognized tax benefits reversed into income upon the statute of limitations expiration.
Quarterly Financial Information Disclosure [Abstract]
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Liabilities
Business combination recognized identifiable assets acquired and liabilities assumed other liabilities.
Other liabilities
Tiller Corporation
Tiller Corporation [Member]
Tiller Corporation.
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent
Other liabilities
Valuation allowance on deferred tax assets
Deferred Tax Assets, Valuation Allowance
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]
Statutory income tax rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
U.S. federal statutory tax rate
Charges for selling acquired inventory
Business Acquisition Charges Related to Selling Acquired Inventory
Business acquisition charges related to selling acquired inventory.
Total
Future Share Based Compensation Expense
Future share-based compensation expense.
Cybersecurity Risk Management Third Party Engaged [Flag]
Documents Incorporated by Reference
Documents Incorporated by Reference [Text Block]
Balance at beginning of period
Balance at end of period
Goodwill
Goodwill, Total
Goodwill acquired
Other items, net
Other Noncash Income (Expense)
Other Noncash Income (Expense), Total
Effective income tax rate
Effective Income Tax Rate Reconciliation, Percent
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Interest income
Investment Income, Interest
Income Tax Authority
Income Tax Jurisdiction [Axis]
Accretion expense
Asset Retirement Obligation, Accretion Expense
Geographical
Geographical [Domain]
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due Year Two
Future minimum lease commitments related to contracts of affreightment due year two.
2027
Finished products
Inventory, Finished Goods, Gross
Effective Income Tax Rate Reconciliation, Tax Credit, Energy-Related, Amount
Energy-related tax credits, amount
Acquisitions, Net of Cash Acquired Discontinued Operations
Acquisitions, net of cash acquired discontinued operations.
Acquisitions, net of cash acquired
Schedule of Change in Projected Benefit Obligation
Schedule of Changes in Projected Benefit Obligations [Table Text Block]
Total property additions, including the impact of acquisitions
Segment, Expenditure, Addition to Long-Lived Assets
Schedule of Inventories Net
Schedule of Inventory, Current [Table Text Block]
Additional paid-in capital
Additional Paid in Capital, Common Stock
Shares withheld for employees’ income tax obligations
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation
Partnerships and joint ventures
Deferred Tax Liabilities, Investments
3.450% Senior Notes, Due 2027
Three Point Four Five Zero Percent Senior Notes Due Twenty Twenty Seven [Member]
Three point four five zero percent senior notes due twenty twenty seven.
Small Cap, International and Emerging Growth Funds
Defined Benefit Plan, Equity Securities, US, Small Cap [Member]
Related Party
Related Party [Member]
Freight
Cargo and Freight [Member]
Property Plant And Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Reconciliation of Cash, Cash Equivalents and Restricted Cash
Schedule of Cash and Cash Equivalents [Table Text Block]
Guarantor Obligations, Nature
Guarantor Obligations, Nature [Axis]
Property, plant and equipment
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current
Cybersecurity Risk Management, Strategy, and Governance [Table]
Basic and Diluted Earnings from Continuing Operations Per Common Share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Other assets and liabilities, net
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Increase (Decrease) in Other Operating Assets and Liabilities, Net, Total
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Income Taxes
Business combination, recognized identifiable assets acquired and liabilities assumed, deferred income taxes.
Deferred income taxes
Deferred income taxes
Equity Securities
Equity Securities [Member]
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount [Abstract]
Nontaxable or nondeductible items:
Component of Other Operating Income and Expense [Line Items]
Component Of Other Operating Income And Expense [Line Items]
Component of other operating income and expense.
Earnings Per Share, Basic
Total basic attributable to common shareholders
Future Share Based Compensation Expense Year One
Future share-based compensation expense year one.
2026
Repayments of Long-Term Debt
Repayments of Long-Term Debt, Total
Repayments of debt
Retirement Benefits [Text Block]
Retirement and Other Benefit Plans
Discount rate
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
Disposal group, including discontinued operation, lease right-of-use assets.
Disposal Group Including Discontinued Operation Lease Right Of Use Assets
Operating lease right-of-use assets
Summary of Weighted-average Remaining Lease Terms and Discount Rates
Schedule Of Weighted Average Remaining Lease Terms And Discount Rates Table [Text Block]
Schedule of weighted-average remaining lease terms and discount rates.
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total
Foreign currency translation gain (loss)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Number of Options, Outstanding at January 1, 2025
Number of Options, Outstanding at December 31, 2025
Indefinite-Lived Intangible Assets Acquired
Intangible assets not subject to amortization
Nonrecurring gains on divested assets
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property
Gain on sale of investment
Net gains on divestitures and sales of assets
Revolving Facility
Revolving Credit Facility [Member]
Total subject to amortization
Finite-Lived Intangible Assets Acquired
Intangibles assets acquired
Retirement Plan Type
Retirement Plan Type [Domain]
Total Current Liabilities
Liabilities, Current
Accounts receivable, net
Increase (Decrease) in Accounts Receivable
Adjustments to reconcile consolidated net earnings to net cash provided by operating activities:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Schedule of Contractual Purchase Commitments
Long-Term Purchase Commitment [Table Text Block]
Lessee, Operating Lease, Liability, to be Paid, Year Five
2030
Bahamas And Canada
Bahamas And Canada [Member]
Bahamas and Canada.
Prior service (credit) - Gross
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax
Income Tax Paid, Federal, after Refund Received
Income Tax Paid, Federal, after Refund Received, Total
Federal
Domestic State Tax Authority
Domestic Tax Jurisdiction [Member]
Subsegments
Subsegments [Axis]
Effective Income Tax Rate Reconciliation, Tax Credit, Percent [Abstract]
Tax credits:
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount
Other, amount
Other, amount
Accounting Standards Update
Accounting Standards Update [Axis]
Consolidation Items
Consolidation Items [Domain]
Divestitures Number of South Texas Ready Mix Operations
Divestitures number of south texas ready mix operations.
Divestitures number of south texas ready mix operations
COLORADO
Colorado
Entity Small Business
Entity Small Business
Retained earnings
Retained Earnings (Accumulated Deficit)
Retained Earnings (Accumulated Deficit), Total
Funded status of the plan at end of year
Defined Benefit Plan, Funded (Unfunded) Status of Plan
Defined Benefit Plan, Funded (Unfunded) Status of Plan, Total
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, after Amortization Expense
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, after Amortization Expense, Total
Investment proportional amortization, income tax expense
Six Point Two Five Percent Senior Notes Due Twenty Thirty Seven [Member]
6.25% Senior Notes, Due 2037
Six point two five percent senior notes due twenty thirty seven.
Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Amount
Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Amount, Total
Effect of cross-border tax laws, amount
Effect of cross-border tax laws, amount
Geographic Concentration Risk
Geographic Concentration Risk [Member]
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Five Point Five Zero Zero Percent Senior Notes Due Twenty Fifty Four [Member]
Five point five zero zero percent senior notes, due twenty fifty four.
5.500% Senior Notes, Due 2054
Aggregate intrinsic values of options exercised
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value
Current
Current Foreign Tax Expense (Benefit)
Revenues and Gross Profit
Revenues And Gross Profit [Text Block]
Revenues and gross profit.
Stock-Based Compensation
Share-Based Payment Arrangement [Text Block]
Reportable Subsegments
Reportable Subsegments [Member]
Insurance Accruals
Insurance Accruals [Policy Text Block]
Insurance accruals.
Unconditional Purchase Obligation, Category of Goods or Services Acquired
Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain]
Leases [Abstract]
Less: allowances
Inventory Valuation Reserves
Lessee Lease Description [Line Items]
Lessee, Lease, Description [Line Items]
Amendment Flag
Amendment Flag
Product and Service
Product and Service [Domain]
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
U.S. federal statutory tax rate, amount
Foreign
Geographic Distribution, Foreign [Member]
West Group [Member]
West Group
West Group [Member]
West group.
Inventories, Net
Inventory Disclosure [Text Block]
Use Rights And Other
Use Rights And Other [Member]
Use rights and other.
Interest on lease liabilities
Finance Lease, Interest Expense
Accounting Policies
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]
Earnings Per Common Share
Earnings Per Share, Policy [Policy Text Block]
Number of ready mixed concrete operations
Number Of Ready Mixed Concrete Operations
Number of ready mixed concrete operations.
Total current assets held for sale
Disposal Group, Including Discontinued Operation, Assets, Current
Current assets held for sale
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Net cash used for operating activities
Net Cash Provided by Operating Activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
NORTH CAROLINA
North Carolina
Debt instrument redemption price percentage
Debt Instrument, Redemption Price, Percentage
Disposal Group, Including Discontinued Operation, Other Assets, Current
Other assets
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description
Common Stock [Member]
Common Stock
Accumulated benefit obligation for defined benefit pension plans
Defined Benefit Plan, Accumulated Benefit Obligation
Share-Based Payment Arrangement, Exercise of Option, Tax Benefit
Tax benefits for stock options exercised
Business Combination, Recognized Asset Acquired, Inventory, Current
Inventories
Cybersecurity Risk Role of Management [Text Block]
Domestic and foreign tax credits, amount
Tax Credit Carryforward, Amount
Collective bargaining agreement expiration month year
Collective Bargaining Agreement Expiration Month Year
Collective bargaining agreement expiration month year.
Corporation's matching obligations
Defined Contribution Plan, Employer Discretionary Contribution Amount
Long-Term Debt, Maturity, Year One
2026
Operating Permits
Operating Permits [Member]
Operating permits.
Permits
Schedule of Assumed Health Care Cost Trend Rates
Schedule of Health Care Cost Trend Rates [Table Text Block]
Assets for Plan Benefits, Defined Benefit Plan
Noncurrent asset
Other assets
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Assets
Business combination recognized identifiable assets acquired and liabilities assumed other assets.
Lessee, Operating Lease, Liability, to be Paid, Year Three
2028
Other operating income, net
Other operating income and expenses, net
Other Operating Income (Expense), Net
Other operating (income) expense, net
Income Tax Paid, by Individual Jurisdiction [Line Items]
Effective Interest Rate
Debt Instrument, Interest Rate, Effective Percentage
Entity Address, Address Line One
Entity Address, Address Line One
Total deferred tax liabilities
Deferred Tax Liabilities, Gross
Deferred Tax Liabilities, Gross, Total
Cost, Depreciation, Amortization and Depletion
Cost, Depreciation, Amortization and Depletion, Total
Depreciation, depletion and amortization expense
Fair Value Hierarchy and NAV
Fair Value Hierarchy and NAV [Axis]
Earnings Per Share [Abstract]
Net Earnings Attributable to Martin Marietta Per Common Share (see Note A)
Income Taxes
Income Tax, Policy [Policy Text Block]
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]
Corporate headquarters member.
Corporate Headquarters [Member]
Corporate headquarters
Weighted-average discount rates:
Weighted Average Discount Rate [Abstract]
Weighted-average discount rate.
Goodwill and Other Intangible Assets
Goodwill and Intangible Assets Disclosure [Text Block]
Directors' Awards
Directors Awards [Member]
Directors awards.
Senior unsecured revolving facility, maturity period
Line of Credit Facility, Expiration Period
Finance Lease, Right-of-Use Asset, before Accumulated Amortization
Property, plant and equipment
Defined Benefit Plan, Expected Future Benefit Payment, Year Four
2029
Investment Type [Axis]
Operating lease right-of-use assets, net
Operating Lease, Right-of-Use Asset
Operating lease right-of-use assets
Less: imputed interest
Finance Lease, Liability, Undiscounted Excess Amount
Defined Benefit Plan, Plan Assets, Category
Defined Benefit Plan, Plan Assets, Category [Domain]
Gross deferred tax assets
Deferred Tax Assets, Gross
Schedule of Future Minimum Contracts of Affreightment and Royalty Commitments for All Noncancelable Agreements
Schedule Of Contracts Of Affreightment And Royalty Commitments Table [Text Block]
Schedule of contracts of affreightment and royalty commitments.
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]
Guarantor Obligations, Current Carrying Value
Surety bonds
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax
Total reclassifications out of accumulated other comprehensive loss before taxes
Debt Instrument Payable Upon Maturity
Debt Instrument Payable Upon Maturity
Debt instrument payable upon maturity.
Less: Net earnings attributable to noncontrolling interests
Net Income (Loss) Attributable to Noncontrolling Interest
Net Income (Loss) Attributable to Noncontrolling Interest, Total
Inventory Disclosure [Abstract]
Debt Instrument, Redemption, Period
Debt Instrument, Redemption, Period [Axis]
Disposal Group, Including Discontinued Operation, Revenue
Revenues
Revenues, discontinued operations
Lessee option to extend.
Lessee Option To Extend
Option to extend lease
Document Type
Document Type
Schedule of Depreciation, Depletion and Amortization
Schedule of Depreciation, Depletion and Amortization [Table Text Block]
Schedule of depreciation, depletion and amortization.
Goodwill and Intangible Assets, Policy [Policy Text Block]
Goodwill and Other Intangible Assets
Cash paid for income taxes
Income Taxes Paid, Net
Income taxes paid, net of amounts refunded
Gross profit (loss)
Gross Profit
Gross profit (loss)
Gross Profit
Conduit Lenders
Conduit Lenders [Member]
conduit lenders.
Total accounts receivable
Accounts And Other Receivables Gross Current
Accounts and other receivables gross current.
Entity Central Index Key
Entity Central Index Key
Less: allowance for estimated credit losses
Accounts Receivable, Allowance for Credit Loss, Current
Maximum consolidated debt reduction for unrestricted cash and temporary investments for debt covenant calculation
Maximum Consolidated Debt Reduction For Unrestricted Cash And Temporary Investments For Debt Covenant Calculation
Maximum consolidated debt reduction for unrestricted cash and temporary investments for debt covenant calculation.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]
Restricted Cash and Cash Equivalent [Abstract]
Proceeds from divestitures and sales of assets
Proceeds from divestitures and sales of assets
Proceeds from Sales of Business, Affiliate and Productive Assets
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
Net (Decrease) Increase in Cash, Cash Equivalents and Restricted Cash
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax
Amount recognized in net periodic pension cost due to settlement, net of tax of $1, $0 and $0, respectively
Operating Activities
Operating Activities [Axis]
Railroad maintenance credits
Effective Income Tax Rate Reconciliation Tax Credit Railroad Maintenance Percent
Tax credit railroad maintenance percent.
Railroad maintenance credits
Other assets
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent
Disposal Group Classification [Domain]
Disposal Group Classification
Common stock, par value
Common Stock, Par or Stated Value Per Share
Accounting Standards Update
Accounting Standards Update [Domain]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Other comprehensive earnings , net of tax
Contribution from owners of noncontrolling interest
Noncontrolling Interest, Increase from Subsidiary Equity Issuance
Goodwill [Line Items]
Goodwill [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Weighted-Average Remaining Contractual Life (years), Outstanding at December 31, 2025
Building Materials Business
Building Materials Business [Member]
Building materials business.
Building Materials Business
Organization
Organization Policy [Text Block]
Organization policy.
Total Shareholders' Equity
Parent [Member]
Document Financial Statement Error Correction [Flag]
Document Financial Statement Error Correction [Flag]
Debt Instruments [Abstract]
Number of Options, Exercised
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period
Debt Disclosure [Abstract]
Foreign Currency
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Revenue Recognition [Line Items]
Revenue Recognition [Line Items]
Revenue recognition.
Total state income taxes
State and Local Income Tax Expense (Benefit), Continuing Operations
Supplemental Cash Flow Elements [Abstract]
Prior to January 15, 2051 (2051 Par Call Date)
Debt Instrument, Redemption, Period Five [Member]
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Fair Values of Pension Plan Assets by Asset Class and Fair Value Hierarchy Level
Schedule Of Fair Values Of Pension Plan Assets By Asset Class And Fair Value Hierarchy Level Table [Text Block]
Schedule of fair values of pension plan assets by asset class and fair value hierarchy level.
Freight and Delivery Costs
Freight And Delivery Costs Policy [Text Block]
Freight and delivery costs.
Hedge Funds
Hedge Funds [Member]
Production Capacity of Asset Exchanged
Production capacity of asset exchanged.
Production capacity of aggregate operations
Current Fiscal Year End Date
Current Fiscal Year End Date
Actual return on plan assets, net
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)
Debt Instrument [Table]
Schedule of Long-Term Debt Instruments [Table]
California
CALIFORNIA
Receivables [Abstract]
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due Year Five
Future minimum lease commitments related to contracts of affreightment due year five.
2030
Customer Relationships
Customer Relationships [Member]
Leases
Leases Policy [Text Block]
Leases policy.
Entity Address, State or Province
Entity Address, State or Province
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Number of Awards, January 1, 2025
Number of Awards, December 31, 2025
Other Cost of Operating Revenue
Other costs of revenues
Available for borrowing under revolving facility
Line of Credit Facility, Remaining Borrowing Capacity
Schedule of Changes in Asset Retirement Obligations
Schedule of Asset Retirement Obligations [Table Text Block]
Business Combination [Table Text Block]
Summary of Fair Values of Assets Acquired and Liabilities Assumed
Preferred stock, shares outstanding
Preferred Stock, Shares Outstanding
Preferred Stock, Shares Outstanding, Beginning Balance
Preferred Stock, Shares Outstanding, Ending Balance
Comprehensive Earnings Attributable to Martin Marietta
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Pro Forma
Pro Forma [Member]
Common stock reserved for issuance under stock-based award plans
Common Stock, Capital Shares Reserved for Future Issuance
Property plant and equipment and finance lease right of use asset depreciation and amortization.
Property Plant And Equipment And Finance Lease Right Of Use Asset Depreciation and Amortization
Property Plant And Equipment And Finance Lease Right Of Use Asset Depreciation and Amortization
Effective Income Tax Rate Reconciliation, Other energy-related tax credit benefits, Percent
Effective income tax rate reconciliation, other energy-related tax credit benefits, percent.
Other energy-related tax credit benefits
Effect of dilutive employee and director awards
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements
Schedule of Weighted-Average Assumptions
Defined Benefit Plan, Assumptions [Table Text Block]
Inventory
Inventory [Axis]
Geographical
Geographical [Axis]
Raw materials
Inventory, Raw Materials, Gross
Equity, Attributable to Noncontrolling Interest
Noncontrolling interests
Stockholders' Equity Attributable to Noncontrolling Interest, Total
Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance
Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, after Amortization, Statement of Cash Flows [Extensible Enumeration]
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
State and local income taxes, net of federal income tax effect, amount
Royalty Commitments Future Minimum Payments Due Year Two
Royalty commitments future minimum payments due year two.
2027
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount
Other, amount
Capitalized interest
Interest Costs Capitalized
Thereafter
Finance Lease, Liability, to be Paid, after Year Five
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Tax
Prior service cost arising during period, tax
Comprehensive Income, Policy [Policy Text Block]
Consolidated Comprehensive Earnings and Accumulated Other Comprehensive Earnings (Loss)
Decrease in unrecognized tax benefits, excluding interest and correlative effects
Decrease In Unrecognized Tax Benefits Excluding Interest And Correlative Effects
Decrease in unrecognized tax benefits excluding interest and correlative effects.
Components of Deferred Tax Assets and Liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Asset and portfolio rationalization charges
Asset and Portfolio Rationalization Charges
Asset and portfolio rationalization charges
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive earnings (loss), net of tax:
Income (Loss) from Continuing Operations, Per Basic Share
Basic from continuing operations attributable to common shareholders
Postretirement Benefits
Other Postretirement Benefits Plan [Member]
Long-term debt, fair values
Long-Term Debt, Fair Value
Amounts reclassified from accumulated other comprehensive loss, net of tax
Earnings from Continuing Operations
Amounts reclassified from accumulated other comprehensive loss, net of tax
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Incentive Compensation Stock Awards
Incentive Stock [Member]
Incentive stock.
Property, Plant and Equipment [Abstract]
7% Debentures, Due 2025
Seven Percent Debentures Due Twenty Twenty Five [Member]
Seven percent debentures due twenty twenty five.
Other noncurrent assets
Other Assets, Noncurrent
Business combination recognized identifiable assets acquired and liabilities assumed asset retirement obligations.
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Asset Retirement Obligations
Asset retirement obligations
Shareholder Value Achievement Plan (1996)
Shareholder Value Achievement Plan1996 [Member]
Shareholder value achievement plan 1996.
Inventories
Deferred Tax Assets, Inventory
Gain (Loss) on Repurchase of Debt Instrument
Gain on repurchase of bond
2.500% Senior Notes, Due 2030
Two Point Five Zero Zero Percent Senior Notes Due Twenty Thirty [Member]
Two point five zero zero percent senior notes due twenty thirty.
Income Tax Paid, Foreign, after Refund Received
Income Tax Paid, Foreign, after Refund Received, Total
Foreign
Postretirement Health Care Plans [Member]
Postretirement Health Care Plans [Member]
Postretirement Health Care Plans.
State Tax Authority
State and Local Jurisdiction [Member]
State and Local Jurisdiction
Schedule of Stock-Based Compensation Expense
Share-Based Payment Arrangement, Cost by Plan [Table Text Block]
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent [Member]
Maturity year
Debt Instrument Maturity Date Year
Debt instrument maturity date year.
Finite-Lived Intangible Assets, Major Class Name
Finite-Lived Intangible Assets, Major Class Name [Domain]
Thereafter
Finite-Lived Intangible Asset, Expected Amortization, after Year Five
Asset Retirement Obligation Liabilities Reclassified from Asset Held for Sale
Asset retirement obligation liabilities reclassified from asset held for sale.
Liabilities reclassified from assets held for sale
Disposal Group, Including Discontinued Operation, Assets, Noncurrent
Noncurrent assets held for sale
Total noncurrent assets held for sale
Accumulated Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Tax
Actuarial loss - Net of tax
Business Combination, Consideration Transferred
Business Combination, Consideration Transferred, Total
Business combination, total consideration
Austin, Texas and Riverside, California
Austin Texas And Riverside California [Member]
Austin, Texas and Riverside, California.
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due Year Three
Future minimum lease commitments related to contracts of affreightment due year three.
2028
Total Revenues and Gross Profit (Loss) by Product Line
Schedule Of Entity Wide Revenue And Gross Profit From External Customers By Products And Services [Text Block]
Schedule of entity wide revenue and gross profit from external customers by products and services.
Preferred stock ($0.01 par value; 10,000,000 shares authorized; no shares outstanding)
Preferred Stock, Value, Issued
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived
Intangible assets acquired
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total
Intangible assets, other than goodwill
Intangible assets acquired
Summary of Discontinued Operations and Assets and Liabilities Held for Sale
Disposal Groups, Including Discontinued Operations [Table Text Block]
Financial Instruments Disclosure [Abstract]
Financial instruments disclosure.
Selling, general and administrative expenses
Selling, General and Administrative Expense
Selling, General and Administrative Expense, Total
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Maturity date
Maturity Date
Debt Instrument, Maturity Date
Investment, Proportional Amortization Method, Elected, Amount
Tax equity Investment amount
Total
Future Minimum Lease Commitments Related To Contracts Of Affreightment
Future minimum lease commitments related to contracts of affreightment.
Minimum
Minimum [Member]
Weighted-average grant-date fair value of stock awards, granted
Weighted-Average Grant-Date Fair Value, Awarded
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Current Assets:
Assets, Current [Abstract]
Real Estate
Real Estate [Member]
Quarterly Financial Information [Text Block]
Quarterly Information (Unaudited)
Amortization expense of intangible assets
Amortization of Intangible Assets
Significant Unobservable Inputs (Level 3)
Fair Value, Inputs, Level 3 [Member]
South Texas Cement Business
South Texas Cement Business [Member]
South Texas cement business and related ready mixed concrete operations.
Disposal Group, Including Discontinued Operation, Other Liabilities, Current
Other liabilities
Segment Reporting [Abstract]
Business Combination, Recognized Asset Acquired, Asset
Total Assets
Property, plant and equipment
Deferred Tax Liabilities, Property, Plant and Equipment
Less: leases classified as held for sale
Operating Lease, Liability, Classified as Held for Sale
Present value of lessee's discounted obligation for lease payments from operating lease classified as held for sale.
Less: leases classified as held for sale
Real Estate
Employee Benefit Plan, Real Estate [Member]
Current Liabilities:
Liabilities, Current [Abstract]
Royalty Commitments Future Minimum Payments Due Year Five
Royalty commitments future minimum payments due year five.
2030
Effective Income Tax Rate Reconciliation Tax Credit Railroad Maintenance Amount
Tax Credit railroad maintenance amount.
Railroad maintenance credits
Railroad maintenance credits, amount
Stock Repurchased and Retired During Period, Value
Repurchases of common stock
Regulatory Asset [Axis]
Quikrete [Member]
Quikrete Holdings, Inc [Member]
Quikrete Holdings, Inc.
Business Combination Number of Active Aggregate Operations Acquired
Business combination number of active aggregate operations acquired.
Number of active aggregates operations
Operating loss carryforwards, amount
Operating Loss Carryforwards
Accounts receivable, net
Accounts Receivable, after Allowance for Credit Loss, Current
Accounts Receivable, after Allowance for Credit Loss, Current, Total
Schedule of Accounts Receivable Net
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Noncash Asset And Portfolio Rationalization Charge
Noncash asset and portfolio rationalization charge.
Noncash asset and portfolio rationalization charge
Income Tax Paid, by Individual Jurisdiction [Abstract]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Reclassification Adjustment, before Tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Reclassification Adjustment, before Tax, Total
Prior service cost
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due Year Four
Future minimum lease commitments related to contracts of affreightment due year four.
2029
Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.
Excess Tax Benefit From Share Based Compensation Operating Activities 1
Excess tax benefits for stock options exercised
Foreign income taxes:
Foreign Income Tax Expense (Benefit), Continuing Operations [Abstract]
Commitments and Contingencies
Commitments and Contingent Liabilities - Note N
Property, plant and equipment, net
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits
Cumulative noncurrent deferred tax assets at end of period, Pension and postretirement benefit plans
Mineral reserves
Mineral Reserves [Member]
Mineral reserves.
Service cost
Defined Benefit Plan, Service Cost
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Weighted-Average Grant-Date Fair Value, January 1, 2025
Weighted-Average Grant-Date Fair Value, December 31, 2025
Use Rights [Member]
Use Rights
Reclassification Out Of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax
Net gain (loss) arising during period, tax
Products in process
Inventory, Work in Process, Gross
Issuances of common stock for stock award plans (in shares)
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture, Total
Indefinite Lived Intangible Assets By Major Class [Line Items]
Indefinite-Lived Intangible Assets [Line Items]
Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale
Business combinations divestitures and discontinued operations text block
Business Combinations Divestitures And Discontinued Operations Text Block
Total operating lease liabilities
Present value of lease payments
Operating Lease, Liability
Present value of lease payments
Goodwill, Measurement Period Adjustment
Reduction in goodwill
Reduction in goodwill
Adjustments to purchase price allocations
Auditor Firm ID
Auditor Firm ID
Basis spread on variable rate
Debt Instrument, Basis Spread on Variable Rate
Customer receivables
Accounts Receivable, before Allowance for Credit Loss, Current
Changes in Goodwill
Schedule of Goodwill [Table Text Block]
Concentration Risk Benchmark
Concentration Risk Benchmark [Axis]
Long-Term Debt, Maturity, Year Two
2027
Continuing Operations
Continuing Operations [Member]
Less: current lease obligations
Other current liabilities
Finance Lease, Liability, Current
Lessee Lease Description [Table]
Lessee, Lease, Description [Table]
Finance leases
Finance Lease, Weighted Average Discount Rate, Percent
Finance Lease, Right-of-Use Asset, Accumulated Amortization
Accumulated depreciation
Accumulated depreciation
Capital Expenditures Incurred but Not yet Paid
Accrued liabilities for purchases of property, plant and equipment
Consolidated net earnings
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Consolidated net earnings
Total current liabilities held for sale
Current liabilities held for sale
Disposal Group, Including Discontinued Operation, Liabilities, Current
Total current liabilities held for sale
Accrued Income Taxes, Current
Accrued income taxes
Products and Services
Products And Services [Member]
Products and services.
Geographic Distribution [Axis]
Long-term Debt, Type
Long-Term Debt, Type [Domain]
Operating Lease Right-of-Use Assets, Held-for-Sale
Operating lease right-of-use assets, held-for-sale.
Operating lease right-of-use assets
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]
Basic weighted-average common shares outstanding
Basic
Weighted Average Number of Shares Outstanding, Basic
Weighted Average Number of Shares Outstanding, Basic, Total
Acquisitions
Goodwill, Acquired During Period
Unrecorded Unconditional Purchase Obligation, to be Paid, Year One
2026
Domestic and Foreign Total Revenues
Revenue from External Customers by Geographic Areas [Table Text Block]
Scenario
Scenario [Axis]
Weighted-Average Grant-Date Fair Value, Adjustment for performance
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Adjustment For Performance Weighted Average Grant Date Fair Value
Share based compensation arrangement by share based payment award equity instruments other than options adjustment for performance weighted average grant date fair value.
Aggregate intrinsic values for options exercisable
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value
Summary of Effective Income Tax Rate On Continuing Operations
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Options granted in 2015 and 2014
Stock Options Two [Member]
Options granted in two thousand fourteen and two thousand thirteen.
Net earnings from continuing operations attributable to Martin Marietta
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent, Total
Restricted Stock - Service Based Awards
Restricted Stock Service Based [Member]
Restricted stock service based.
Net Asset Value
Fair Value Measured at Net Asset Value Per Share [Member]
Segments
Segments [Axis]
Number of Awards, Adjustment for performance
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Adjustment For Performance
Share based compensation arrangement by share based payment award equity instruments other than options adjustment for performance.
Pretax (loss) earnings
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
Pretax earnings
Long-Lived Tangible Asset
Long-Lived Tangible Asset [Domain]
Uncategorized [Abstract]
Uncategorized.
Product and freight revenues customer payment terms
Product And Freight Revenues Customer Payment Terms
Product and freight revenues customer payment terms.
Liabilities incurred and liabilities assumed in business combinations
Asset Retirement Obligation, Liabilities Incurred
Estimated Service Lives for Property Plant and Equipment
Schedule Of Estimated Service Life Of Property Plant And Equipment Table [Text Block]
Schedule of estimated service life of property, plant and equipment.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Total debt
Long-term debt, carrying values
Long-Term Debt
Southern Crushed Concrete
Southern Crushed Concrete [Member]
Southern Crushed Concrete.
Stock-based compensation expense
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition, Total
Variable Rate
Variable Rate [Domain]
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)
Actuarial loss (gain)
Total Shareholders’ Equity
Equity, Attributable to Parent
Stockholders' Equity Attributable to Parent, Beginning Balance
Stockholders' Equity Attributable to Parent, Ending Balance
Preferred stock, par value
Preferred Stock, Par or Stated Value Per Share
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Five
2030
Statement of Stockholders' Equity [Abstract]
Specialties.
Specialties
Specialties
Cash Equivalents
Cash Equivalents [Member]
Start-Up Costs
Start-up Activities, Cost Policy [Policy Text Block]
Trade Receivable Facility
Trade Receivable Credit Facility [Member]
Trade receivable credit facility.
Property, plant and equipment
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total
Property, plant and equipment acquired
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax
Actuarial (gain) loss
Debt Securities
Fixed Income Securities [Member]
Long-Term Debt, Maturity, Year Five
2030
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Disclosure [Line Items]
Total property, plant and equipment
Total property, plant and equipment
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization
Federal income taxes:
Federal Income Tax Expense (Benefit), Continuing Operations [Abstract]
Effects of statutory depletion
Effective Income Tax Rate Reconciliation Effects Of Statutory Depletion Percent
Effective income tax rate reconciliation effects of statutory depletion percent.
Other Operating Income And Expense [Table]
Other Operating Income And Expense [Table]
Other operating income and expense.
Percentage of minimum amount of income tax payments net of refunds received
Percentage of Minimum Amount of Income Tax Payments Net of Refunds Received
Percentage of minimum amount of income tax payments net of refunds received.
Product Information [Line Items]
Product Information [Line Items]
Pension and Postretirement Benefit Plans
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Cash paid for amounts included in the measurement of lease liabilities:
Cash Paid For Amount Included In Measurement Of Lease Liabilities
Cash paid for amount included in measurement of lease liabilities.
Noncontrolling Interests
Noncontrolling Interest [Member]
Summary Information for Restricted Stock Awards and Incentive Compensation Stock Awards
Share-Based Payment Arrangement, Outstanding Award, Activity, Excluding Option [Table Text Block]
Debt Instrument, Name
Debt Instrument, Name [Domain]
Regulatory Asset [Domain]
Other current assets
Other Assets, Current
Valuation and other reserves
Deferred Tax Assets Valuation And Other Reserves
Deferred tax assets, valuation and other reserves.
Long-Term Debt, Maturity, Year Four
2029
Schedule of Unrecognized Tax Benefits Excluding Interest Correlative Effects
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share, Total
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share
Basic from discontinued operations attributable to common shareholders
Cash Provided by (Used in) Financing Activity, Discontinued Operation
Net cash used for financing activities
Income Tax [Table]
Income Tax [Table]
Income tax.
Additional interest expense
Interest expense
Interest Expense, Operating and Nonoperating
Interest Expense, Total
Accounts Receivable
Receivable [Policy Text Block]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Buildings
Building [Member]
Goodwill write-off for divestiture, amount
Effective Income Tax Rate Reconciliation Goodwill Write-off For Divestiture
Effective income tax rate reconciliation goodwill write-off for divestiture.
Credit Facility
Credit Facility [Axis]
Cost of Product and Service Sold
Cost of Goods and Services Sold, Total
Cost of revenues
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block]
Current
Current State and Local Tax Expense (Benefit)
Schedule of Expected Benefit Payments
Schedule of Expected Benefit Payments [Table Text Block]
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]
Finance Lease, Liability, to be Paid, Year One
2026
Debt Securities
Debt Securities [Member]
Estimated contribution of pension plans
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year
Excluding Acquisition Bridge Debt
Excluding Acquisition Bridge Debt [Member]
Excluding acquisition bridge debt.
Operating Leases
Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
Business Combination, Recognized Liability Assumed, Liability [Abstract]
Liabilities:
Related and Nonrelated Parties [Axis]
Financing lease term
Lessee Remaining Lease Term
Lessee remaining lease term.
Legacy TXI plan
Legacy T X I Plan [Member]
Legacy TXI plan.
Cement and Ready Mixed Concrete [Member]
Cement and ready mixed concrete.
Cement and Ready Mixed Concrete
Pension
Pension Plan [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Effective Income Tax Rate Reconciliation, Tax Credit, Energy-Related, Percent
Equity investments in renewable energy tax credits, net
Energy-related tax credits
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax
Net gain (loss) arising during period, net of tax of $21, $11 and $(5), respectively
Interest Income, Short-Term Investment, Increase (Decrease)
Increase in interest income
Summary of Intangible Assets Acquired
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]
East Group
East Group [Member]
East group.
Entity Address, City or Town
Entity Address, City or Town
3.200% Senior Notes, Due 2051
Three Point Two Zero Zero Percent Senior Notes Due Twenty Fifty One [Member]
Three point two zero zero percent senior notes, due twenty fifty one.
Surety Bonds.
Surety Bonds [Member]
Surety Bonds
Repurchases of common stock, Shares
Stock Repurchased During Period, Shares
Stock Repurchased During Period, Shares
Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent
Intangible assets, excluding goodwill
Deferred tax asset, valuation allowance
Operating Loss Carryforwards, Valuation Allowance
Reportable business segments
Number of Reportable Segments
Accumulated other comprehensive loss
Cumulative noncurrent deferred tax assets at end of period
Deferred Tax Assets, Other Comprehensive Loss
Security Exchange Name
Security Exchange Name
Credit Facility
Credit Facility [Domain]
Indefinite life intangible assets
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Indefinite-Lived Intangible Assets (Excluding Goodwill), Total
Indefinite-Lived Intangible Assets (Excluding Goodwill), Beginning Balance
Indefinite-Lived Intangible Assets (Excluding Goodwill), Ending Balance
Intangible assets not subject to amortization
Energy And Service Contracts
Energy And Service Contracts [Member]
Energy and service contracts.
Counterparty Name [Axis]
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Earnings from continuing operations before income tax expense
Commitments And Contingencies [Line Items]
Commitments And Contingencies [Line Items]
Commitments and contingencies.
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent
Income/ loss from discontinued operations
Earnings from discontinued operations, net of income tax expense
Concentration Risk Type
Concentration Risk Type [Domain]
Right-of-use assets
Deferred Tax Liabilities Right Of Use Assets
Deferred tax liabilities right of use assets.
Finance Lease, Liability, to be Paid, Year Five
2030
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent
Foreign tax effects
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share, Total
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share
Diluted from discontinued operations attributable to common shareholders
Inventories, net
Inventories, net
Inventory, Net
Geographic Distribution, Domestic [Member]
Domestic
Total cash, cash equivalents and restricted cash presented in the consolidated statements of cash flows
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Cash, Cash Equivalents and Restricted Cash, beginning of year
Cash, Cash Equivalents and Restricted Cash, end of year
Cash paid for interest, net of amount capitalized
Interest Paid, Excluding Capitalized Interest, Operating Activity
Statistical Measurement
Statistical Measurement [Domain]
Other Operating Income, Net
Other Operating Income and Expense [Text Block]
Total Current Assets
Assets, Current
Acquisition of assets through asset exchange
Noncash or Part Noncash Acquisition, Fixed Assets Acquired
Document Period End Date
Document Period End Date
Other Income and Expenses [Abstract]
Other adjustments:
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount [Abstract]
Fair Value Hierarchy and NAV
Fair Value Hierarchy and NAV [Domain]
ICFR Auditor Attestation Flag
ICFR Auditor Attestation Flag
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number
Number of Options, Exercisable at December 31, 2025
Gross benefits paid
Defined Benefit Plan, Benefit Obligation, Benefits Paid
Prior service cost (credit) - Net of tax
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
TENNESSEE
Tennessee
Weighted - average amortization period
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life
Statement of Financial Position [Abstract]
Assets:
Business Combination, Recognized Asset Acquired, Asset [Abstract]
Albert Frei & Sons, Inc. and Youngquist Brothers Rock, LLC and R.E. Janes Gravel Co. [Member]
Albert Frei & Sons, Inc. and Youngquist Brothers Rock, LLC and R.E. Janes Gravel Co.
Albert Frei & Sons, Inc. and Youngquist Brothers Rock, LLC and R.E. Janes Gravel Co.
Magnesia Specialties
Magnesia Specialties [Member]
Magnesia specialties.
Specialties
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Member]
Treasury Rate
US Treasury (UST) Interest Rate [Member]
Deferred income taxes, net
Deferred Tax Liabilities, Net
Deferred Tax Liabilities, Net, Total
Other receivables
Other Receivables
Fair value of plan assets
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets
Schedule of Recognized Pretax Amounts in Comprehensive Earnings
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Significant Accounting Policies [Line Items]
Significant Accounting Policies [Line Items]
Significant accounting policies.
Financing Leases
Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
Total Liabilities
Liabilities
Other Nonoperating Income and Expense [Text Block]
Other Nonoperating Income, Net
Summary of Balance Sheet Classifications of Operating and Finance Leases
Balance Sheet Classifications Of Operating And Finance Leases Table [Text Block]
Balance sheet classifications of operating and finance leases.
External Freight Expense
External freight expense.
External freight expense
Reportable Segments
Reportable Segments [Member]
Reportable Segments [Member]
Foreign Income Tax Expense (Benefit), Continuing Operations
Total current foreign income taxes
Future Share Based Compensation Expense Year Two
Future share-based compensation expense year two.
2027
Effective Income Tax Rate Reconciliation Other Energy-related Tax Credit Benefits
Effective income tax rate reconciliation other energy-related tax credit benefits.
Other energy-related tax credit benefits, amount
Other energy-related tax credit benefits, amount
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
Foreign tax effects, amount
Foreign tax effects, amount
Expected return on assets
Defined Benefit Plan, Expected Return (Loss) on Plan Assets
Lessee, Operating Lease, Liability, to be Paid, Year Two
2027
Restricted cash
Restricted Cash
Restricted Cash, Total
Disposal Groups, Including Discontinued Operations [Table]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Table]
Restricted Stock Awards
Restricted Stock [Member]
Additional shares issuance under the plan
Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Available For Grant
Share based compensation arrangement by share based payment award number of additional shares available for grant.
Amortization of right-of-use assets
Finance Lease, Right-of-Use Asset, Amortization
Variable Rate
Variable Rate [Axis]
Indefinite-lived Intangible Assets, Major Class Name
Indefinite-Lived Intangible Assets, Major Class Name [Domain]
4.250% Senior Notes, Due 2024
Four Point Two Five Zero Percent Senior Notes Due Twenty Twenty Four [Member]
4.250% Senior Notes, Due 2024
Gross Amount
Finite-Lived Intangible Assets, Gross
Finite-Lived Intangible Assets, Gross, Total
Total
Royalty Commitments Future Minimum Payments Due
Royalty commitments future minimum payments due.
Disposal Group, Including Discontinued Operation, Inventory, Noncurrent
Inventories, net
Diluted
Diluted weighted-average common shares outstanding
Weighted Average Number of Shares Outstanding, Diluted
Entity File Number
Securities Act File Number
Dividends paid
Payments of Ordinary Dividends, Common Stock
4.250% Senior Notes, Due 2047
Four Point Two Five Zero Percent Senior Notes Due Twenty Fourty Seven [Member]
Four point two five zero percent senior notes due twenty fourty seven.
Performance obligations, description of timing
Revenue, Performance Obligation, Description of Timing
Cover [Abstract]
Transaction Expenses
Transaction expenses.
Transaction expenses
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Two
2027
Debt covenant
Ratio Of Consolidated Net Debt To Earnings Before Interest Taxes Depreciation Depletion And Amortization
Ratio of consolidated net debt to earnings before interest taxes depreciation depletion and amortization.
Number of Awards, Forfeited
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Investment Proportional Amortization Income Recapture Expense
Investment proportional amortization, income recapture expense.
Investment proportional amortization, income recapture expense
CALIFORNIA and COLORADO
California And Colorado [Member]
California and Colorado.
Investments [Domain]
Property additions through acquisitions
Property Plant And Equipment Additions Through Acquisitions
Property, plant and equipment, additions through acquisitions.
State income taxes:
State and Local Income Tax Expense (Benefit), Continuing Operations [Abstract]
Reclassification from AOCI, Current Period, Tax
Reclassification from AOCI, Current Period, Tax, Total
Tax effect
Liability reserve for insurance claims
Accrued Insurance, Noncurrent
Scenario
Scenario [Domain]
Revolving Line Of Credit Expires In August 2015
Revolving Line Of Credit Expires In August Two Thousand Fifteen [Member]
Revolving line of credit expires in august two thousand fifteen.
Expendable Parts Inventory
Expendable Parts Inventory [Member]
Expendable parts inventory.
Liability, Defined Benefit Pension Plan, Noncurrent
Noncurrent liability
Common stock reserved for future issuance
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized
Number of divisions represent operating segments
Number of Operating Segments
Segments
Segment Reporting Disclosure [Text Block]
Schedule of Accumulated Benefit Obligations in Excess of Plan Assets
Defined Benefit Plan, Plan with Projected Benefit Obligation in Excess of Plan Assets [Table Text Block]
Corporate
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Proceeds from sale of restricted investments to discharge long term debt.
Proceeds from sale of restricted investments to discharge long term debt
Proceeds From Sale Of Restricted Investments To Discharge Long Term Debt
Number of Options, Terminated
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Total
Common stock issued under the plan
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period
Other items, net
Deferred Tax Assets, Other
Significant Accounting Policies [Table]
Significant Accounting Policies [Table]
Significant accounting policies.
Effective Income Tax Rate Reconciliation Proportional Amortization Of Energy-related Tax Credits
Effective income tax rate reconciliation proportional amortization of energy-related tax credits.
Proportional amortization of energy-related tax credits, amount
Net Balance
Finite-Lived Intangible Assets, Net
Finite-Lived Intangible Assets, Net, Beginning Balance
Finite-Lived Intangible Assets, Net, Ending Balance
Intangible assets subject to amortization
Schedule Of Product Information [Table]
Nature of Operation, Product Information, Concentration of Risk [Table]
Minimum likelihood for recognition of tax benefit related to uncertain tax position
Minimum Likelihood For Recognition Of Tax Benefit Related To Uncertain Tax Position
Minimum likelihood for recognition of tax benefit related to uncertain tax position.
Property, plant and equipment, Service Lives, Years
Property, Plant and Equipment, Useful Life
New Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Cash Provided by (Used in) Investing Activity, Discontinued Operation
Net cash provided by investing activities
Net cash (used for) provided by investing activities
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent
Other
Lessee option to terminate.
Lessee Option To Terminate
Option to terminate lease
Business Combination, Recognized Liability Assumed, Liability
Total liabilities
Floating Rate Senior Notes Due Twenty Twenty
Floating Rate Senior Notes Due Twenty Twenty [Member]
Floating rate senior notes due twenty twenty.
Disposal Group, Including Discontinued Operation, Consideration
Revenues
Operations classified as discontinued operations
Operating loss carry forwards expiration year.
Operating Loss Carry Forwards Expiration Year
Operating loss carryforwards, expiration year
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Domestic
Effective income tax rate on continuing operations, amount
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Defined benefit pension and postretirement plans:
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]
Royalty Commitments Future Minimum Payments Due Next Twelve Months
Royalty commitments future minimum payments due next 12 months.
2026
Rate to which the cost trend rate gradually declines
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate
Business combination number of south texas ready mix operations
Business Combination Number Of South Texas Ready Mix Operations
Business Combination Number Of South Texas Ready Mix Operations
Depletion
Depletion, Total
Depletion expense
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax, Total
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax, Total
Texas Cement Business [Member]
Texas cement business and related ready mixed concrete operations.
Texas Cement Business
Total
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage
Common stock, shares outstanding
Beginning Balance (in shares)
Ending Balance (in shares)
Common Stock, Shares, Outstanding
Less: current lease obligations
Current operating lease liabilities
Operating Lease, Liability, Current
Current operating lease liabilities
Interest-only loan receivable
Interest Only Loan Receivable [Member]
Interest only loan receivable.
Depreciation, depletion and amortization
Depreciation, Depletion and Amortization
Depreciation, Depletion and Amortization, Total
Depreciation, depletion and amortization expense
Future revenues from unsatisfied performance obligations
Revenue, Remaining Performance Obligation, Amount
Prior service cost
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Amortization of prior service cost
Cybersecurity Risk Management Processes Integrated [Flag]
Document Transition Report
Document Transition Report
Unrecorded Unconditional Purchase Obligation by Category of Item Purchased
Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis]
On or After 2051 Par Call Date and Prior to Maturity
Debt Instrument Redemption Period Six [Member]
Debt instrument, redemption, period six.
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent
Property, plant and equipment, net
Common stock issued under the plan
Cumulative Shares Issued Under Shareholder Value Achievement Plan
Cumulative shares issued under shareholder value achievement plan.
Future Share Based Compensation Expense Year Three
Future share-based compensation expense year three.
2028
Repayment of loans related to life insurance policies
Payments for (Proceeds from) Policy Loans
Payments for (Proceeds from) Policy Loans, Total
Thereafter
Unrecorded Unconditional Purchase Obligation, to be Paid, after Year Five
Other States [Member]
Other
Other States member.
Repurchases of common stock
Payments for Repurchase of Common Stock
Reduction in pension expense
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component
Noncompetition agreements
Noncompete Agreements [Member]
Components of Income Tax Expense From Continuing Operations
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
2.500% Senior Notes, Due 2030
Two Point Five Zero Zero Percent Senior Notes Due Two Thousand Thirty [Member]
Two point five zero zero percent senior notes due two thousand thirty.
Statement of Cash Flows [Abstract]
Income Taxes [Line Items]
Income Taxes [Line Items]
Income taxes.
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax
Amortization of prior service cost, net of tax of $2, $1 and $2, respectively
Current
Current Federal Tax Expense (Benefit)
Summary Information for Stock Options
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
Operating Activities
Operating Activities [Domain]
Acquisitions, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Payments to Acquire Businesses, Net of Cash Acquired, Total
Shareholders' Equity
Equity [Text Block]
Aggregates
Aggregates [Member]
Aggregates.
Retirement Plans and Postretirement Benefits
Pension and Other Postretirement Plans, Policy [Policy Text Block]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Discontinued Operations and Disposal Groups [Abstract]
Cybersecurity Risk Management Processes Integrated [Text Block]
Net Earnings Attributable to Martin Marietta
Net Earnings Attributable to Martin Marietta
Inventories, net
Increase (Decrease) in Inventories
Increase (Decrease) in Inventories, Total
Total - Net of tax
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax
Other intangibles, net
Other Intangible Assets, Net
Operating lease cost
Operating Lease, Cost
Number of quarries and yards
Number Of Quarries And Yards
Number of quarries and yards.
Proceeds from (Payment for) Other Financing Activity
Other financing activities, net
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, after Amortization, Statement of Income or Comprehensive Income [Extensible Enumeration]
Intangible Assets, Net (Excluding Goodwill)
Total
Total
Operating cash flows used for operating leases
Operating Lease, Payments
Real Estate, Land, Held-for-Sale
Investment land
Proceeds from divestitures and sales of assets
Proceeds from Divestiture of Businesses
Revisions in estimated cash flows
Asset Retirement Obligation, Revision of Estimate
Income Tax Authority, Name
Income Tax Authority, Name [Axis]
Cash Provided by (Used in) Operating Activity, Discontinued Operation
Net cash provided by operating activities
Construction in Progress
Construction in Progress [Member]
Disposal Group, Including Discontinued Operation, Goodwill, Current
Goodwill allocated to assets held for sale
Goodwill allocated to assets held for sale
Goodwill
Energy Expense
Energy expense.
Energy expense
Document Fiscal Year Focus
Document Fiscal Year Focus
Components of Changes in Accumulated Other Comprehensive Loss and Related Cumulative Noncurrent Deferred Tax Assets
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Concentration Risk Benchmark
Concentration Risk Benchmark [Domain]
Royalty Commitments Future Minimum Payments Due Year Four
Royalty commitments future minimum payments due year four.
2029
Performance obligations, customer satisfaction period
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Cash Flows from Investing Activities:
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
Retirement Benefits [Abstract]
Accounts payable
Accounts Payable, Current
Accounts Payable, Current, Total
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
Components Domestic and Foreign Pretax Earnings From Continuing Operations
Effective Income Tax Rate Reconciliation, Proportional Amortization Of Energy-related Tax Credits, Percent
Effective income tax rate reconciliation, proportional amortization of energy-related tax credits, percent.
Proportional amortization of energy-related tax credits
Geographic Distribution [Domain]
Schedule of Net Benefit Costs [Table Text Block]
Schedule of Components of Net Periodic Benefit Cost
Effects of statutory depletion, amount
Effective Income Tax Rate Reconciliation Effects Of Statutory Depletion
Effective income tax rate reconciliation effects of statutory depletion.
Effects of statutory depletion, amount
Participants' contributions
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant
Effective Income Tax Rate Reconciliation Changes In Unrecognized Tax Benefits
Effective income tax rate reconciliation changes in unrecognized tax benefits.
Changes in unrecognized tax benefits, amount
Changes in unrecognized tax benefits
Pretax gain
Gain on sale of investment
Gain (Loss) on Disposition of Business
Proceeds from exchange of certain assets
Proceeds from Sale of Productive Assets
Proceeds from Sale of Productive Assets, Total
Summary of Information About the Company's Contract Balances
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
Deferred
Deferred Federal Income Tax Expense (Benefit)
Schedule of Change In Plan Assets
Schedule of Changes in Fair Value of Plan Assets [Table Text Block]
Lease Obligation, Held-for-Sale
Lease obligation, held-for-sale.
Lease obligations
Issuances of common stock for stock award plans
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture, Total
Number of days restricted from utilizing cash
Number Of Days Restricted From Utilizing Cash
Number of days Restricted from utilizing cash.
Finite-Lived Intangible Asset, Expected Amortization, Year One
2026
Lease liabilities
Deferred Tax Assets Lease Liability
Deferred tax assets lease liability.
Rate of increase in future compensation levels
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase
Defined Benefit Plan Private Infrastructure [Member]
Defined benefit plan private infrastructure.
Private infrastructure
Commitments and Contingencies Disclosure [Abstract]
Lessee, Operating Lease, Liability, to be Paid, Year One
2026
Schedule Of Indefinite Lived Intangible Assets [Table]
Intangible Asset, Indefinite-Lived [Table]
FLORIDA
Florida
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)
Net identifiable assets acquired
Net identifiable assets acquired
Basis of Presentation and Use of Estimates
Basis Of Presentation And Use Of Estimates Policy [Text Block]
Basis of presentation and use of estimates.
Supplemental Cash Flow Information
Cash Flow, Supplemental Disclosures [Text Block]
Outstanding borrowing under credit facility
Long-Term Line of Credit
Long-Term Line of Credit, Total
Business Combination, Pro Forma Information, Pro Forma Income (Loss) from Continuing Operations, after Tax
Net earnings from continuing operations attributable to Martin Marietta
Summary of Unaudited Pro Forma Financial Information
Business Combination, Pro Forma Information [Table Text Block]
Debt Instrument
Debt Instrument [Axis]
Thereafter
Lessee, Operating Lease, Liability, to be Paid, after Year Five
Interest cost
Defined Benefit Plan, Interest Cost
Share-Based Payment Arrangement [Abstract]
Unrecognized compensation cost
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total
Business Combination, Recognized Liability Assumed, Deferred Tax Liability
Deferred income tax liabilities
Total net sales, percentage
Concentration Risk, Percentage
Defined Benefit Plan, Expected Future Benefit Payment, Year One
2026
Net cash provided by investing activities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Net Cash (Used for) Provided by Investing Activities
Finance leases
Finance Lease, Weighted Average Remaining Lease Term
Title of 12(b) Security
Title of 12(b) Security
Schedule Of Segment Reporting Information By Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Credit Facility interest rate
Line of Credit Facility, Interest Rate at Period End
Uncertain Tax Positions
Income Tax Uncertainties, Policy [Policy Text Block]
Income Tax Paid, by Individual Jurisdiction [Table]
Weighted-Average Grant-Date Fair Value, Forfeited
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Subsegments
Subsegments [Domain]
Investment Program, Proportional Amortization Method, Elected, Other Income Tax Benefit
Investment program, proportional amortization method, other income tax benefit
Related and Nonrelated Parties [Domain]
Thereafter
Long-Term Debt, Maturity, after Year Five
Income Taxes
Income Tax Disclosure [Text Block]
Finance lease cost:
Finance Lease Costs [Abstract]
Finance lease costs.
Estimated incremental percentage on interest rate
Incremental Borrowing Rate
Incremental borrowing rate.
Other noncurrent liabilities
Other Liabilities, Noncurrent
Debt Instrument, Redemption, Period
Debt Instrument, Redemption, Period [Domain]
Finance Lease, Right-of-Use Asset, after Accumulated Amortization
Property, plant and equipment, net
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]
Schedule of Net Periodic Benefit Credit or Cost Not Yet Recognized
Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]
Property, Plant and Equipment, Net
Property, Plant and Equipment [Table Text Block]
Outstanding letters of credit
Letters of Credit Outstanding, Amount
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Weighted-Average Exercise Price, Outstanding at January 1, 2025
Weighted-Average Exercise Price, Outstanding at December 31, 2025
Schedule of Noncash Investing and Financing Activities
Schedule of Other Significant Noncash Transactions [Table Text Block]
Defined Benefit Plan, Plan Assets, Amount
Fair values of pension plan assets
Balance at beginning of year
Balance at end of year
Investment Program, Proportional Amortization Method, Elected, Commitment
Investment program, commitment amount
Income Tax Disclosure [Abstract]
Repair and Maintenance Costs
Maintenance Cost, Policy [Policy Text Block]
Less: accumulated depreciation, depletion and amortization
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization
Additional Paid-In Capital
Additional Paid-in Capital [Member]
Disposal group, including discontinued operation, lease obligations noncurrent.
Disposal Group Including Discontinued Operation Lease Obligations Noncurrent
Lease obligations
Lease obligations
Building Materials Business West Group
Building Materials Business West Group [Member]
Building materials business west group.
West Group
Building Materials Business East Group [Member]
Building materials business east group.
East Group
Income Statement Location
Statement of Income Location, Balance [Axis]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Senior Notes [Member]
Senior Notes
Trading Symbol
Trading Symbol
Schedule Of Finite Lived Intangible Assets [Table]
Intangible Asset, Finite-Lived [Table]
Property, Plant and Equipment, Net
Property, Plant and Equipment Disclosure [Text Block]
Open Tax Year
Open tax years
2.400% Senior Notes, Due 2031
Two Point Four Zero Zero Percent Senior Notes Due Twenty Thirty One [Member]
Two point four zero zero percent senior notes, due twenty thirty one.
Disposal Group, Held-for-Sale, Not Discontinued Operations [Member]
Continuing Operations
Prior to April 15, 2031 (2031 Par Call Date)
Debt Instrument, Redemption, Period Three [Member]
4.25% Senior Notes, Due 2024
Four Point Two Five Percent Senior Notes Due Twenty Twenty Four [Member]
Four point two five percent senior notes due twenty twenty four.
Pretax loss on divestitures and sales of assets
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax
Pretax loss on divestiture
Intangible Assets Subject to Amortization
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Employee-related Liabilities, Current, Total
Employee-related Liabilities, Current
Accrued salaries, benefits and payroll taxes
Remeasurement of operating leases right of use assets.
Remeasurement Of Operating Leases Right Of Use Assets
Remeasurement of operating lease right-of-use assets
Cash Flows from Financing Activities:
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Gabbs [Member]
Gabbs Member.
Gabbs
Total lease payments
Lessee, Operating Lease, Liability, to be Paid
ASU 2016-13
Accounting Standards Update 2016-13 [Member]
Less: imputed interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Accumulated Other Comprehensive Loss
Equity Components [Axis]
Asphalt and Paving Services [Member]
Asphalt and paving services.
Amortization of Investment
Amortization of investment.
Amortization of investment
Equity Component
Equity Component [Domain]
Performance obligations, period
Performance Obligation Period
Performance obligation period.
RETC Projects
Renewable Energy Program [Member]
Allowance for inventories in excess of sales requisite record period
Allowance For Inventories In Excess Of Sales Requisite Record Period
Allowance for inventories in excess of sales requisite record period.
Goodwill and Intangible Assets Disclosure [Abstract]
Disposal group, including discontinued operation, lease obligations current.
Disposal Group Including Discontinued Operation Lease Obligations Current
Lease obligations
Lease obligations
Document Annual Report
Document Annual Report
Business Acquisition
Business Combination [Axis]
Asset And Portfolio Rationalization Charge
Asset and portfolio rationalization charge.
Asset and portfolio rationalization charge
Rate of increase in future compensation levels
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase
Machinery and Equipment
Machinery and Equipment [Member]
Employee stock options expiration date
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period
Interproduct Revenues
Intersubsegment Eliminations [Member]
Building and Building Improvements [Member]
Other Building Materials
Statement of Comprehensive Income [Abstract]
Accounts receivable, net
Accounts and Other Receivables, Net, Current
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Sales Revenue Segment
Revenue, Segment Benchmark [Member]
Health care cost trend rate assumed for next year
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year
Maximum
Maximum [Member]
Other current receivables
Other Receivables, Gross, Current
Asset retirement obligation depreciation and accretion
Asset Retirement Obligation Depreciation And Accretion
Asset retirement obligation depreciation and accretion.
Statistical Measurement
Statistical Measurement [Axis]
Weighted-Average Exercise Price, Exercised
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Common Stock, Value, Issued
Common stock ($0.01 par value; 100,000,000 shares authorized; 60,309,739 shares and 61,126,646 shares outstanding at December 31 , 2025 and 2024, respectively)
Depreciation, depletion and amortization
Depreciation And Depletion And Amortization Excluding Portion Attributable To Machinery And Equipment Under Capital Leases
Depreciation and depletion and amortization excluding portion attributable to machinery and equipment under capital leases.
Number of States in which Entity Operates
Number of states in which entity operates
Payments on finance lease obligations
Financing cash flows used for finance leases
Finance Lease, Principal Payments
Senior unsecured revolving facility, maturity period
Debt instrument maturity period
Line of Credit Facility, Expiration Date
Revenues And Gross Profit [Abstract]
Revenues and gross profit.
Reclassification Out of Accumulated Other Comprehensive Loss
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Finance Leases:
Lessee Finance Leases [Abstract]
Lessee finance leases.
Basis of Consolidation
Consolidation, Policy [Policy Text Block]
Total Equity
Beginning Balance
Ending Balance
Equity, Including Portion Attributable to Noncontrolling Interest
Restricted Stock - Performance Based Awards
Restricted Stock Performance Based [Member]
Restricted stock performance based.
Mineral Reserves and Interests
Mineral Reserves And Interests [Member]
Mineral reserves and interests.
Income (Loss) from Continuing Operations, Per Diluted Share
Diluted from continuing operations attributable to common shareholders
Net operating loss carryforwards
Deferred tax assets recognized
Deferred Tax Assets, Operating Loss Carryforwards
Deferred Tax Assets, Operating Loss Carryforwards, Total
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
State and local income taxes, net of federal income tax effect
Service and Performance Based Restricted Stock [Member]
Service and performance based restricted stock.
Service and Performance Based Restricted Stock [Member]
Estimated Amortization Expense of Intangible Assets
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Diluted net earnings from continuing operations attributable to common shareholders attributable to Martin Marietta
Diluted net earnings from continuing operations attributable to common shareholders attributable to Martin Marietta
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Diluted
Thereafter
Royalty Commitments Future Minimum Payments Due After Year Five
Royalty commitments future minimum payments due after year five.
Entity Public Float
Entity Public Float
Preferred stock, shares authorized
Preferred Stock, Shares Authorized
Accrued interest
Interest Payable, Current
Royalties expenses
Royalty Expense
Inventory
Inventory [Domain]
Finite-Lived Intangible Assets by Major Class
Finite-Lived Intangible Assets by Major Class [Axis]
Schedule of Principal Amount, Effective Interest Rate and Maturity Date for Corporation's Senior Notes
Schedule of Debt [Table Text Block]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent [Abstract]
Other adjustments:
Shares withheld for employees’ income tax obligations
Payment, Tax Withholding, Share-Based Payment Arrangement
Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Percent
Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Percent, Total
Effect of cross-border tax laws
Leases
Lessee Operating And Finance Leases [Text Block]
Lessee operating and finance leases.
Revenue Recognition
Revenue from Contract with Customer [Text Block]
Schedule Of Business Acquisitions By Acquisition [Table]
Business Combination [Table]
Entity Registrant Name
Entity Registrant Name
Debt Disclosure [Text Block]
Debt
Goodwill and other intangibles
Deferred Tax Liabilities, Goodwill and Intangible Assets
Deferred Tax Liabilities, Goodwill and Intangible Assets, Total
Accumulated benefit obligation
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation
6.25% Senior Notes, Due 2037
Six Point Two Five Percentage Of Senior Notes Due Two Thousand Thirty Seven [Member]
Six point two five percentage of senior notes due two thousand thirty seven.
0.650% Senior Notes, Due 2023
Zero Point Six Five Zero Percent Senior Notes Due Twenty Twenty Three [Member]
Zero point six five zero percent senior notes, due twenty twenty three.
Entity Voluntary Filers
Entity Voluntary Filers
Finite-Lived Intangible Asset, Expected Amortization, Year Two
2027
Accrued other taxes
Accrued Other Taxes Current
Accrued other taxes current.
Other nonoperating income, net
Other Nonoperating Income (Expense)
Other Nonoperating Income (Expense), Total
Other nonoperating income, net
Other nonoperating income, net
Accumulated Other Comprehensive Income Loss [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Deferred
Deferred State and Local Income Tax Expense (Benefit)
Cybersecurity Risk Management Positions or Committees Responsible [Flag]
Reduction of consolidated debt in the debt ratio calculation
Consolidated Debt Reduction For Unrestricted Cash And Cash Equivalents For Debt Covenant Calculation
The amount by which consolidated debt, for purposes of calculating the debt covenant ratio, may be reduced for unrestricted cash and cash equivalents, provided no amounts are outstanding under the revolving credit facility and the AR credit facility.
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
SOFR Member
Discontinued Operations, Held-for-Sale [Member]
Discontinued Operations
Alabama Definitive Agreement
Alabama Definitive Agreement [Member]
Alabama definitive agreement.
Finite-Lived Intangible Asset, Expected Amortization, Year Three
2028
Tax effect
Income tax expense
Income tax expense
Income Tax Expense (Benefit)
Acquisition, divestiture and integration expenses
Business Combination Acquisition Divestiture And Integration Related Costs
Business combination acquisition divestiture and integration related costs.
Acquisition, divestiture and integration expenses
Other securities, Target Allocation
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage
Percentage of incentive compensation to acquire shares, maximum
Percentage Of Incentive Compensation To Acquire Shares Maximum
Percentage of incentive compensation to acquire shares maximum.
Capital expenditures
Payments to Acquire Productive Assets
Payments to Acquire Productive Assets, Total
Defined Benefit Plan, Expected Future Benefit Payment, Year Five
2030
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due Next Twelve Months
Future minimum lease commitments related to contracts of affreightment due next twelve months.
2026
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Disposal Group Classification
Disposal Group Classification [Axis]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax
Prior service cost
Business Combination, periods for production level
Business Combination, periods for production level
Business combination periods for production level
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total
Accumulated other comprehensive earnings (loss)
Consolidation Items
Consolidation Items [Axis]
Total federal income taxes
Federal Income Tax Expense (Benefit), Continuing Operations
Additions to property, plant and equipment
Additions to property, plant and equipment
Payments to Acquire Property, Plant, and Equipment
Payments to Acquire Property, Plant, and Equipment, Total
Other investing activities, net
Payment for (Proceeds from) Other Investing Activity
Awards granted
Number of Awards, Awarded
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Lehigh West Region, SCC and Tiller
Lehigh West Region Southern Crushed Concrete And Tiller Corporation [Member]
Lehigh West Region, Southern Crushed Concrete and Tiller Corporation.
Total
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Reclassification Adjustment, before Tax
Total Assets
Assets employed
Assets
Inventories Valuation
Inventory, Policy [Policy Text Block]
Schedule Of Property Plant And Equipment [Table]
Property, Plant and Equipment [Table]
Income Tax Paid, State and Local, after Refund Received
Income Tax Paid, State and Local, after Refund Received, Total
State
Future Share Based Compensation Expense Year Four
Future share-based compensation expense year four.
2029
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Weighted-Average Remaining Contractual Life (years), Exercisable at December 31, 2025
Income Statement [Abstract]
Operating cash flows used for finance leases
Finance Lease, Interest Payment on Liability
Stock-Based Compensation
Share-Based Payment Arrangement [Policy Text Block]
Percentage of Aggregates Business Net Sales in Top Five Sales states
Percentage Of Aggregates Business Net Sales In Top Five Sales States [Member]
Percentage of aggregates business net sales in top five sales states.
Defined Benefit Plan, Amortization of Gain (Loss)
Amortization of actuarial loss
Actuarial loss
Debt Instrument, Redemption, Period One [Member]
Prior to September 1, 2034
Remeasurement of finance lease right-of-use assets
Remeasurement Of Finance Lease Right Of Use Assets
Remeasurement of finance lease right-of-use assets.
Deferred income taxes, net
Deferred Income Tax Expense (Benefit)
Deferred Income Tax Expense (Benefit), Total
Weighted Average
Weighted Average [Member]
Settlement charge
Other Comprehensive Income (Loss), Defined Benefit Plan, Transition Asset (Obligation), Reclassification Adjustment from AOCI, before Tax
Percentage of employees represented in labor union
Percentage Of Employees Represented In Labor Union
Percentage of employees represented in labor union.
On or After 2031 Par Call Date and Prior to Maturity
Debt Instrument, Redemption, Period Four [Member]
Subsegments Consolidation Items
Subsegments Consolidation Items [Axis]
Supplies Inventory
Supplies Inventory [Member]
Supplies inventory.
Number of Awards, Distributed
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Schedule of Target Assets Allocation
Schedule of Allocation of Plan Assets [Table Text Block]
Business Combination [Abstract]
Earnings Per Share, Diluted
Total diluted attributable to common shareholders
Third-party railroad track maintenance expense
Third Party Railroad Track Maintenance Expenses
Third-party railroad track maintenance expenses.
Financial Data for Continuing Operation for Company's Reportable Business Segments
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Operating Segments
Operating Segments [Member]
Land and Land Improvements
Land and Land Improvements [Member]
Finite-Lived Intangible Asset, Expected Amortization, Year Five
2030
Unpaid Commitments To Limited Liability Companies
Unpaid commitments to limited liability companies.
Unpaid commitments to limited liability companies
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effective income tax rate on continuing operations, percent
Accounts payable
Increase (Decrease) in Accounts Payable, Trade
Domestic tax credits, expiration year
Tax Credit Carry Forward Expiration Year
Tax credit carry forward, expiration year.
Business combination recognized identifiable assets acquired and liabilities assumed mineral reserves.
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Mineral Reserves
Mineral reserves
City Area Code
City Area Code
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit
Investment program, proportional amortization method, income tax credit
Retirement plans and postretirement benefits amortized amount representing percentage of greater of projected benefit obligation or pension plan assets.
Retirement Plans And Postretirement Benefits Amortized Amount Representing Percentage Of Greater Of Projected Benefit Obligation Or Pension Plan Assets
Retirement plans and postretirement benefits amortized amount representing percentage of greater of projected benefit obligation or pension plan assets.
Restricted Investments
Restricted investments
Restricted investments (to satisfy discharged debt and related interest)
Business Combination, Pro Forma Information, Pro Forma Revenue
Revenues
Cash
Defined Benefit Plan, Cash [Member]
Net amount recognized at end of year
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position
Accrued benefit credit
Other Comprehensive Income (Loss), Net of Tax
Other Comprehensive Income (Loss), Net of Tax
Other comprehensive loss / earnings
Auditor Name
Auditor Name
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement
increased remeasurement of defined benefit plans
Discontinued Operation, Tax Effect of Discontinued Operation
Income tax expense
Total long-term lease obligations
Other noncurrent liabilities
Finance Lease, Liability, Noncurrent
Total - Gross
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax
Quarterly Financial Information [Table Text Block]
Quarterly Results of Continuing Operations
Principal Amount
Debt Instrument, Face Amount
Debt instrument, face amount
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total
Earnings from discontinued operations, net of income tax expense
Credit facility commitment
Line of Credit Facility, Maximum Borrowing Capacity
Business Acquisition [Line Items]
Business Combination [Line Items]
Summary of the amounts of cash taxes paid (refunded) by the company
Summary of the amounts of cash taxes paid (refunded) by the company.
Summary of the Amounts of Income Taxes Paid (Refunded) by the Company
Schedule Of Defined Benefit Plans Disclosures [Table]
Defined Benefit Plan [Table]
Deferred tax assets recognized
Deferred Tax Assets, Tax Credit Carryforwards
Deferred Tax Assets, Tax Credit Carryforwards, Total
Counterparty Name [Domain]
Basic net earnings from continuing operations attributable to common shareholders attributable to Martin Marietta
Basic net earnings from continuing operations attributable to common shareholders attributable to Martin Marietta
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic
Variable lease cost
Variable Lease, Cost
Year the rate reaches the ultimate rate
Defined Benefit Plan, Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate
Aggregate intrinsic values of stock awards, distributed
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested
Operating leases
Operating Lease, Weighted Average Remaining Lease Term
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Land Improvements
Land Improvements [Member]
Total lease cost
Lease, Cost
Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent
Other
Other
Award Date
Award Date [Axis]
Cash, Cash Equivalents and Restricted Cash
Cash and Cash Equivalents, Policy [Policy Text Block]
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax
Amortization of actuarial loss, tax
Property, plant and equipment, net
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net, Total
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent
Goodwill
Right-of-use assets obtained in exchange for new finance lease liabilities
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Defined Benefit Plan, Expected Future Benefit Payment, Year Three
2028
Deferred
Deferred Foreign Income Tax Expense (Benefit)
Total noncurrent liabilities held for sale
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent
Bond Discount and Debt Issuance
Corporate Bond Securities [Member]
Earnings (Loss) from operations
Earnings from Operations
Operating Income (Loss)
Segment Earnings (Loss) from Operations
Pretax earnings
Award Date
Award Date [Domain]
Discount rate
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate
Retained Earnings
Retained Earnings [Member]
Number of Railcars Commitment
Number of Railcars Commitment
Number of railcars commitment.
Number of cement plants
Number Of Cement Plants
Number of cement plants.
Projected benefit obligation
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation
Summary of the Amounts of Cash Taxes Paid by the Company
Summary of the amounts of cash taxes paid by the company.
Summary of the Amounts of Income Taxes Paid (Refunded) by the Company
Share-Based Payment Arrangement, Noncash Expense, Total
Stock-based compensation expense recognized
Stock-based compensation expense
Share-Based Payment Arrangement, Noncash Expense
Sales Taxes
Sales Taxes Policy [Text Block]
Sales taxes.
Goodwill write-off for divestiture
Effective Income Tax Rate Reconciliation Goodwill Write off for Divestiture
Effective income tax rate reconciliation goodwill write off for divestiture.
Stock repurchase program, shares authorized to be repurchased
Share Repurchase Program, Authorized, Number of Shares
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Four
2029
Total
Purchase commitments for property, plant and equipment
Unrecorded Unconditional Purchase Obligation
Woodville
Woodville [Member]
Woodville.
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax
Amortization of prior service cost, tax
Operating leases
Operating Lease, Weighted Average Discount Rate, Percent
Total long-term lease obligations
Noncurrent operating lease liabilities
Operating Lease, Liability, Noncurrent
Quoted Prices In Active Markets For Identical Assets (Level 1)
Fair Value, Inputs, Level 1 [Member]
Class of Stock [Line Items]
Class of Stock [Line Items]
Commitments And Contingencies [Table]
Commitments And Contingencies [Table]
Commitments and contingencies.
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Net Cash (Used for) Provided by Financing Activities
Summary of Components of Lease Cost
Lease, Cost [Table Text Block]
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent [Abstract]
Nontaxable or nondeductible items:
Auditor Location
Auditor Location
Five Point One Five Zero Percent Senior Notes Due Twenty Thirty Four [Member]
Five point one five zero percent senior notes, due twenty thirty four.
5.150% Senior Notes, Due 2034
Deferred income taxes, net
Deferred Income Tax Liabilities, Net
Actuarial loss
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax
Thereafter
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due After Year Five
Future minimum lease commitments related to contracts of affreightment due after year five.
Schedule Of Goodwill [Table]
Goodwill [Table]
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Employee benefits
Deferred Tax Liabilities Employee Benefits
Deferred tax liabilities employee benefits.
Income Tax Authority
Income Tax Jurisdiction [Domain]
Entity Interactive Data Current
Entity Interactive Data Current
Schedule of Finite And Indefinite Lived Intangible Assets [Table Text Block]
Tabular disclosure of assets, excluding financial assets and goodwill.
Intangible Assets Aquired
Defined Benefit Plan, Plan Assets, Category
Defined Benefit Plan, Plan Assets, Category [Axis]
Deferred tax liabilities related to:
Deferred Tax Liabilities, Gross [Abstract]
Income Statement Location
Statement of Income Location, Balance [Domain]
Cash Flows from Operating Activities:
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Other Receivable, after Allowance for Credit Loss, Related Party [Extensible Enumeration]
Raw materials expense
Raw Materials Expense
Raw materials expense.
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)
Gross profit
Gross profit, discontinued operations
Intangible Assets Deemed to Indefinite Life that are Therefore Not Amortized
Schedule of Indefinite-Lived Intangible Assets [Table Text Block]
Dividends declared
Common Stock, Dividends, Per Share, Declared
Deferred Federal, State and Local, Tax Expense (Benefit)
Deferred Federal, State and Local, Tax Expense (Benefit), Total
Deferred income tax payments
Line of Credit Facility, Current Borrowing Capacity
Line of credit, trade receivable securitization facility
Share-Based Payment Arrangement, Expense, Tax Benefit
Total tax benefits related to stock-based compensation expense
Colorado and Central Texas
Colorado and Central Texas [Member]
Colorado and Central Texas
Entity Tax Identification Number
Entity Tax Identification Number
Equity:
Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Land
Land [Member]
Share Price
Share price
Long-term Debt, Type
Long-Term Debt, Type [Axis]
Lehigh Hanson Incorporation West Region [Member]
Lehigh Hanson Incorporation West Region [Member]
Lehigh Hanson, Incorporation West Region [Member]
Supplies and expendable parts
Other Inventory, Supplies, Gross
Common stock price
Common Stock Price
Common stock price.
Decrease in unrecognized tax benefits is reasonably possible excluding interest and correlative effects.
Decrease In Unrecognized Tax Benefits Is Reasonably Possible Excluding Interest And Correlative Effects.
Decrease in unrecognized tax benefits is reasonably possible, excluding interest and correlative effects.
Accounts Receivable, Net
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
Deferred Tax Assets, Unrealized Currency Losses
Cumulative noncurrent deferred tax assets at end of period, Foreign currency
Income Tax Authority, Name
Income Tax Authority, Name [Domain]
Accounts payable relieved in connection with sale of property, plant and equipment
Accounts Payable Relieved In Connection With Sale Of Property, Plant And Equipment
Accounts payable relieved in connection with sale of property, plant and equipment.
Royalty Commitments Future Minimum Payments Due Year Three
Royalty commitments future minimum payments due year three.
2028
Unrecognized tax benefits interest on income taxes expense and correlative effects.
Unrecognized Tax Benefits Interest On Income Taxes Expense And Correlative Effects
Unrecognized tax benefits interest on income taxes expense and correlative effects
Local Phone Number
Local Phone Number
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Net periodic benefit cost
Other current liabilities
Other Liabilities, Current
Short-term lease cost
Short-Term Lease, Cost
Weighted-Average Common Shares Outstanding
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax
Amortization of actuarial loss, net of tax of $0, $0 and $0, respectively
Auditor Opinion [Text Block]
Auditor Opinion
Schedule of Funded Status
Schedule of Net Funded Status [Table Text Block]
Weighted-average remaining lease terms (years):
Weighted Average Remaining Lease Term [Abstract]
Weighted-average remaining lease term.
Finance Lease, Liability, to be Paid, Year Two
2027
Accounting Policies [Abstract]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Other comprehensive earnings before reclassifications, net of tax
Service revenues
Revenues
Total
Segment Revenues
Blue Water Industries LLC [Member]
Blue Water Industries LLC.
Blue Water Industries LLC
Lessee, Operating Lease, Liability, to be Paid, Year Four
2029
Debt Instrument, Repurchased Face Amount
Principal amount of stock repurchased during the period
Labor and Related Expense
Labor and benefits expense
Awards available for grant
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant
Weighted-average period over which unrecognized compensation cost will be recognized
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Affiliated Entity
Affiliated Entity [Member]
Schedule Of Stock By Class [Table]
Stock, Class of Stock [Table]
Operating loss carryforwards, expiration dates
Domestic And Foreign Operating Loss Carry Forward Expiration Date
Expiration through date for domestic and foreign net operating loss carryforwards.
Entity Emerging Growth Company
Entity Emerging Growth Company
Indefinite-lived Intangible Assets
Indefinite-Lived Intangible Assets [Axis]
Subsegments Consolidation Items
Subsegments Consolidation Items [Domain]
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill
Total consideration
Chair, President And Chief Executive Officer.
Chair, President And Chief Executive Officer [Member]