XML 113 R2.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Pay vs Performance Disclosure - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pay vs Performance Disclosure |  |  |  |
Pay vs Performance Disclosure, Table | Pay Versus Performance The Company is required to disclose in its Proxy Statement information that shows the relationship between “Compensation Actually Paid” as defined in Item 402(v) of Regulation S-K and the financial performance of the Company. The Management Development and Compensation Committee did not consider the Pay Versus Performance disclosure when making its executive pay or incentive compensation decisions for any of the years shown. For a discussion of how the Management Development and Compensation Committee seeks to align pay with performance when making compensation decisions, please review the Compensation Discussion and Analysis beginning on page 43. The table and notes below provide this disclosure for the fiscal years ending December 31, 2023, 2022, 2021 and 2020.
|  |  |  |  |  |  |  | Average Summary Compensation Table Total for Non-PEO Named Executive Officers ($) |  |  | Average Compensation Actually Paid to Non-PEO Named Executive Officers ($) |  |  | Value of Initial Fixed $100 Investment Based on: |  |  |  |  |  |  |
Year (1) |  | Summary Compensation Table Total for PEO ($) |  |  | Compensation Actually Paid to PEO (2),(3) ($) |  |  | Total Shareholder Return (5) ($) |  |  | Peer Group Total Shareholder Return (6) ($) |  |  | Net Income ($) |  |  | Company Selected Measure (Adjusted EBITDA) (9) ($) |
2023 |  |  | 18,488,885 |  |  |  | 35,058,147 | (4) |  |  | 3,477,775 |  |  |  | 5,837,293 | (4) |  |  | 183.92 |  |  |  | 158.32 |  |  |  | 1,169,400,000 |  |  |  | 2,111,400,000 |
2022 |  |  | 12,784,251 |  |  |  | 6,452,731 | (5) |  |  | 2,438,871 |  |  |  | 1,415,556 |  |  |  | 123.76 |  |  |  | 133.61 |  |  |  | 866,740,000 |  |  |  | 1,617,010,000 |
2021 |  |  | 14,939,587 |  |  |  | 39,031,817 | (6) |  |  | 2,739,108 |  |  |  | 6,627,252 |  |  |  | 160.17 |  |  |  | 159.52 |  |  |  | 702,770,000 |  |  |  | 1,533,200,000 |
2020 |  |  | 12,818,588 |  |  |  | 12,254,009 | (7) |  |  | 2,618,321 |  |  |  | 2,456,130 |  |  |  | 102.59 |  |  |  | 121.61 |  |  |  | 721,050,000 |  |  |  | 1,392,820,000 |
(1) | The PEO and NEOs included in the above compensation columns reflect the following:
Year |  | PEO |  | NEOs
2023 |  | C. Howard Nye |  | James A. J. Nickolas, Roselyn R. Bar, Robert J. Cardin, Michael J. Petro
2022 |  | C. Howard Nye |  | James A. J. Nickolas, Roselyn R. Bar, Craig M. LaTorre, John P. Mohr
2021 |  | C. Howard Nye |  | James A. J. Nickolas, Roselyn R. Bar, Craig M. LaTorre, John P. Mohr
2020 |  | C. Howard Nye |  | James A. J. Nickolas, Roselyn R. Bar, Daniel L. Grant, Craig M. LaTorre
(2) | The dollar amounts reported for our PEO and NEOs under “Compensation Actually Paid” represent the amount of “Compensation Actually Paid” to the PEO and NEOs, as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to the PEO or NEOs during the applicable year.
(3) | For the portion of “Compensation Actually Paid” that is based on year-end stock prices, the following prices were used: for 2023: $498.91; for 2022: $337.97; for 2021: $440.52; and for 2020: $283.97.
(4) | 2023 “Compensation Actually Paid” to the PEO and the average “Compensation Actually Paid” to the NEOs reflect the following adjustments from Total Compensation reported in the Summary Compensation Table:
|  | PEO |  |  | Average for non-PEO NEOs |
Total Reported in 2023 Summary Compensation Table (SCT) |  |  | 18,488,885 |  |  |  | 3,477,775 |
Less, Value of Stock Awards Reported in SCT |  |  | (8,580,337 | ) |  |  | (1,044,621 | )
Less, Change in Pension Value and Non-Qualified Deferred Compensation Earnings in SCT |  |  | (5,132,284 | ) |  |  | (668,867 | )
Plus, Pension Service Cost |  |  | 643,303 |  |  |  | 145,277 |
Plus, Year-End Value of Awards Granted in Fiscal Year that are Unvested and Outstanding |  |  | 16,032,328 |  |  |  | 2,182,973 |
Plus, Change in Fair Value of Prior Year Awards that are Unvested and Outstanding |  |  | 6,878,685 |  |  |  | 1,052,998 |
Plus, FMV of Awards Granted this Year and that Vested this Year |  |  |  |  |  |  | 7,127 |
Plus, Change in Fair Value (from Prior Year-End) of Prior Year Awards that Vested this Year |  |  | 6,727,567 |  |  |  | 684,631 |
Less, Prior Year Fair Value of Prior Year Awards that Failed to Vest this Year |  |  |  |  |  |  |  |
Total Adjustments |  |  | 16,569,262 |  |  |  | 2,359,518 |
“Compensation Actually Paid” for Fiscal Year 2023 |  |  | 35,058,147 |  |  |  | 5,837,293 |
(5) | Company and Peer Group TSR reflects the Company’s peer group (S&P 500 Materials Index) as reflected in our Annual Report on Form 10-K pursuant to Item 201(e) of Regulation S-K for the fiscal year ended December 31, 2023. Each year reflects what the cumulative $100 investment would be, including the reinvestment of dividends, if such amount were invested on December 31, 2019.
(6) | Consolidated earnings before interest; income taxes; depreciation, depletion and amortization; earnings/loss from nonconsolidated equity affiliates; acquisition and integration expenses; the impact of selling acquired inventory after its markup to fair value as part of acquisition accounting; and the nonrecurring gain on the divestiture of certain ready mixed concrete operations (Adjusted EBITDA) is an indicator used by the Company and investors to evaluate the Company’s operating performance from period to period. Adjusted EBITDA was selected as the 2023 “Company-Selected Measure” as defined in Item 402(v). Please see Appendix B for a reconciliation of non-GAAP measures to GAAP measures.
Company Selected Measure Name | Adjusted EBITDA |  |  |
Named Executive Officers, Footnote |
(1) | The PEO and NEOs included in the above compensation columns reflect the following:
Year |  | PEO |  | NEOs
2023 |  | C. Howard Nye |  | James A. J. Nickolas, Roselyn R. Bar, Robert J. Cardin, Michael J. Petro
2022 |  | C. Howard Nye |  | James A. J. Nickolas, Roselyn R. Bar, Craig M. LaTorre, John P. Mohr
2021 |  | C. Howard Nye |  | James A. J. Nickolas, Roselyn R. Bar, Craig M. LaTorre, John P. Mohr
2020 |  | C. Howard Nye |  | James A. J. Nickolas, Roselyn R. Bar, Daniel L. Grant, Craig M. LaTorre
Peer Group Issuers, Footnote |
(5) | Company and Peer Group TSR reflects the Company’s peer group (S&P 500 Materials Index) as reflected in our Annual Report on Form 10-K pursuant to Item 201(e) of Regulation S-K for the fiscal year ended December 31, 2023. Each year reflects what the cumulative $100 investment would be, including the reinvestment of dividends, if such amount were invested on December 31, 2019.
PEO Total Compensation Amount | $ 18,488,885 | $ 12,784,251 | $ 14,939,587 | $ 12,818,588
PEO Actually Paid Compensation Amount | $ 35,058,147 | 6,452,731 | 39,031,817 | 12,254,009
Adjustment To PEO Compensation, Footnote |
(4) | 2023 “Compensation Actually Paid” to the PEO and the average “Compensation Actually Paid” to the NEOs reflect the following adjustments from Total Compensation reported in the Summary Compensation Table:
|  | PEO |  |  | Average for non-PEO NEOs |
Total Reported in 2023 Summary Compensation Table (SCT) |  |  | 18,488,885 |  |  |  | 3,477,775 |
Less, Value of Stock Awards Reported in SCT |  |  | (8,580,337 | ) |  |  | (1,044,621 | )
Less, Change in Pension Value and Non-Qualified Deferred Compensation Earnings in SCT |  |  | (5,132,284 | ) |  |  | (668,867 | )
Plus, Pension Service Cost |  |  | 643,303 |  |  |  | 145,277 |
Plus, Year-End Value of Awards Granted in Fiscal Year that are Unvested and Outstanding |  |  | 16,032,328 |  |  |  | 2,182,973 |
Plus, Change in Fair Value of Prior Year Awards that are Unvested and Outstanding |  |  | 6,878,685 |  |  |  | 1,052,998 |
Plus, FMV of Awards Granted this Year and that Vested this Year |  |  |  |  |  |  | 7,127 |
Plus, Change in Fair Value (from Prior Year-End) of Prior Year Awards that Vested this Year |  |  | 6,727,567 |  |  |  | 684,631 |
Less, Prior Year Fair Value of Prior Year Awards that Failed to Vest this Year |  |  |  |  |  |  |  |
Total Adjustments |  |  | 16,569,262 |  |  |  | 2,359,518 |
“Compensation Actually Paid” for Fiscal Year 2023 |  |  | 35,058,147 |  |  |  | 5,837,293 |
Non-PEO NEO Average Total Compensation Amount | $ 3,477,775 | 2,438,871 | 2,739,108 | 2,618,321
Non-PEO NEO Average Compensation Actually Paid Amount | $ 5,837,293 | 1,415,556 | 6,627,252 | 2,456,130
Adjustment to Non-PEO NEO Compensation Footnote |
(4) | 2023 “Compensation Actually Paid” to the PEO and the average “Compensation Actually Paid” to the NEOs reflect the following adjustments from Total Compensation reported in the Summary Compensation Table:
|  | PEO |  |  | Average for non-PEO NEOs |
Total Reported in 2023 Summary Compensation Table (SCT) |  |  | 18,488,885 |  |  |  | 3,477,775 |
Less, Value of Stock Awards Reported in SCT |  |  | (8,580,337 | ) |  |  | (1,044,621 | )
Less, Change in Pension Value and Non-Qualified Deferred Compensation Earnings in SCT |  |  | (5,132,284 | ) |  |  | (668,867 | )
Plus, Pension Service Cost |  |  | 643,303 |  |  |  | 145,277 |
Plus, Year-End Value of Awards Granted in Fiscal Year that are Unvested and Outstanding |  |  | 16,032,328 |  |  |  | 2,182,973 |
Plus, Change in Fair Value of Prior Year Awards that are Unvested and Outstanding |  |  | 6,878,685 |  |  |  | 1,052,998 |
Plus, FMV of Awards Granted this Year and that Vested this Year |  |  |  |  |  |  | 7,127 |
Plus, Change in Fair Value (from Prior Year-End) of Prior Year Awards that Vested this Year |  |  | 6,727,567 |  |  |  | 684,631 |
Less, Prior Year Fair Value of Prior Year Awards that Failed to Vest this Year |  |  |  |  |  |  |  |
Total Adjustments |  |  | 16,569,262 |  |  |  | 2,359,518 |
“Compensation Actually Paid” for Fiscal Year 2023 |  |  | 35,058,147 |  |  |  | 5,837,293 |
Compensation Actually Paid vs. Total Shareholder Return |  |  |  |
Compensation Actually Paid vs. Net Income |  |  |  |
Compensation Actually Paid vs. Company Selected Measure |  |  |  |
Total Shareholder Return Vs Peer Group |  |  |  |
Tabular List, Table | Financial Performance Measures The following table lists on an unranked basis the three financial performance measures that, in the Company’s assessment represent the most important performance measures used to link “Compensation Actually Paid” for our NEOs to Company performance for 2023.
Adjusted EBITDA
rTSR
Total Revenues
Total Shareholder Return Amount | $ 183.92 | 123.76 | 160.17 | 102.59
Peer Group Total Shareholder Return Amount | 158.32 | 133.61 | 159.52 | 121.61
Net Income (Loss) | $ 1,169,400,000 | $ 866,740,000 | $ 702,770,000 | $ 721,050,000
Company Selected Measure Amount | 2,111,400,000 | 1,617,010,000 | 1,533,200,000 | 1,392,820,000
PEO Name | C. Howard Nye |  |  |
Stock Price | $ 498.91 | $ 337.97 | $ 440.52 | $ 283.97
Measure:: 1 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Adjusted EBITDA |  |  |
Non-GAAP Measure Description | Consolidated earnings before interest; income taxes; depreciation, depletion and amortization; earnings/loss from nonconsolidated equity affiliates; acquisition and integration expenses; the impact of selling acquired inventory after its markup to fair value as part of acquisition accounting; and the nonrecurring gain on the divestiture of certain ready mixed concrete operations (Adjusted EBITDA) is an indicator used by the Company and investors to evaluate the Company’s operating performance from period to period. Adjusted EBITDA was selected as the 2023 “Company-Selected Measure” as defined in Item 402(v). Please see Appendix B for a reconciliation of non-GAAP measures to GAAP measures. |  |  |
Measure:: 2 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | rTSR |  |  |
Measure:: 3 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Total Revenues |  |  |
PEO |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ 16,569,262 |  |  |
PEO | Value of Stock Awards Reported in SCT [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (8,580,337) |  |  |
PEO | Change in Pension Value and NonQualified Deferred Compensation Earnings in SCT [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (5,132,284) |  |  |
PEO | Pension Service Cost [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 643,303 |  |  |
PEO | YearEnd Value of Awards Granted in Fiscal Year that are Unvested and Outstanding [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 16,032,328 |  |  |
PEO | Change in Fair Value of Prior Year Awards that are Unvested and Outstanding [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 6,878,685 |  |  |
PEO | Change in Fair Value (from Prior YearEnd) of Prior Year Awards that Vested this Year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 6,727,567 |  |  |
Non-PEO NEO |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 2,359,518 |  |  |
Non-PEO NEO | Value of Stock Awards Reported in SCT [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (1,044,621) |  |  |
Non-PEO NEO | Change in Pension Value and NonQualified Deferred Compensation Earnings in SCT [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | (668,867) |  |  |
Non-PEO NEO | Pension Service Cost [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 145,277 |  |  |
Non-PEO NEO | YearEnd Value of Awards Granted in Fiscal Year that are Unvested and Outstanding [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 2,182,973 |  |  |
Non-PEO NEO | Change in Fair Value of Prior Year Awards that are Unvested and Outstanding [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 1,052,998 |  |  |
Non-PEO NEO | FMV of Awards Granted this Year and that Vested this Year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 7,127 |  |  |
Non-PEO NEO | Change in Fair Value (from Prior YearEnd) of Prior Year Awards that Vested this Year [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ 684,631 |  |  |

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToNonPeoNeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToPeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_CoSelectedMeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iii + Details
Name: | ecd_CompActuallyPaidVsCoSelectedMeasureTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph ii + Details
Name: | ecd_CompActuallyPaidVsNetIncomeTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph i + Details
Name: | ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_MeasureName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_NamedExecutiveOfficersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph vi + Details
Name: | ecd_NonGaapMeasureDescriptionTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_NonPeoNeoAvgCompActuallyPaidAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_NonPeoNeoAvgTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupIssuersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_PeerGroupTotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_PeoActuallyPaidCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_PeoName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_PeoTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTable
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 6 + Details
Name: | ecd_TabularListTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnVsPeerGroupTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | mlm_StockPrice
Namespace Prefix: | mlm_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481687/323-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-28 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482765/220-10-50-6 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483443/250-10-50-3 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483443/250-10-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480175/815-40-65-1 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483443/250-10-50-8 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483443/250-10-50-9 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483443/250-10-50-11 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483443/250-10-50-11 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483443/250-10-50-4 Reference 13: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 830 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480167/946-830-55-10 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section 45 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483581/946-220-45-7 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-22 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(9)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(1)(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-3 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480097/470-10-S99-1A Reference 20: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(ii)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480097/470-10-S99-1A Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480097/470-10-S99-1A Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480097/470-10-S99-1A Reference 23: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480097/470-10-S99-1A Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480097/470-10-S99-1B Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480097/470-10-S99-1B Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(B)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480097/470-10-S99-1B Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480097/470-10-S99-1B Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480097/470-10-S99-1B Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-30 Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-32 Reference 31: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 60B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482689/260-10-45-60B Reference 32: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 31 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-31 Reference 33: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-32 Reference 34: http://www.xbrl.org/2003/role/disclosureRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483499/205-20-50-7 Reference 35: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 36: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-1A Reference 37: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-1B Reference 38: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 Reference 39: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ecd_MeasureAxis=1
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=2
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_MeasureAxis=3
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_PeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=mlm_ValueOfStockAwardsReportedInSctMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=mlm_ChangeInPensionValueAndNonqualifiedDeferredCompensationEarningsInSctMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=mlm_PensionServiceCostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=mlm_YearendValueOfAwardsGrantedInFiscalYearThatAreUnvestedAndOutstandingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=mlm_ChangeInFairValueOfPriorYearAwardsThatAreUnvestedAndOutstandingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=mlm_ChangeInFairValueFromPriorYearendOfPriorYearAwardsThatVestedThisYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_NonPeoNeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=mlm_FmvOfAwardsGrantedThisYearAndThatVestedThisYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |