{
 "ticker": "MLM",
 "name": "Martin Marietta Materials Inc",
 "legal_name": "MARTIN MARIETTA MATERIALS INC",
 "cik": "0000916076",
 "exchange": "NYSE",
 "sic": "1400",
 "industry": "Mining & Quarrying Of Nonmetallic Minerals (No Fuels)",
 "state": "NC",
 "fiscal_year_end": "1231",
 "is_financial": false,
 "is_utility": false,
 "snapshot_date": "2026-10-26",
 "price": {
  "value": 507.17,
  "as_of": "2026-10-23",
  "source": "Alpaca Market Data (consolidated SIP daily bar)",
  "url": "https://docs.alpaca.markets/docs/historical-stock-data-1"
 },
 "market_cap": {
  "value": 30463591565.63,
  "as_of": "2026-10-23",
  "unit": "USD",
  "meaning": "price on the price date x latest reported point-in-time shares (see inputs.share_count_as_of)",
  "warning": null,
  "unavailable_reason": null,
  "inputs": {
   "traded_price": {
    "value": 507.17,
    "as_of": "2026-10-23",
    "unit": "USD per traded unit (share or ADS)",
    "source": "Alpaca Market Data (consolidated SIP daily bar)",
    "url": "https://docs.alpaca.markets/docs/historical-stock-data-1"
   },
   "sec_shares_outstanding": {
    "value": 60065839.0,
    "unit": "underlying shares",
    "concept": "SEC cover page 10-Q 0001193125-26-326001 (60,065,839 shares (single class on cover)); filing document https://www.sec.gov/Archives/edgar/data/916076/000119312526326001/mlm-20260630.htm",
    "period_end": "2026-07-27",
    "accession": "0001193125-26-326001",
    "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526326001/R1.htm"
   },
   "depositary_ratio": {
    "value": 1.0,
    "unit": "underlying shares per traded unit",
    "status": "domestic",
    "source": "10-K filer; SEC shares are the traded units",
    "evidence_url": null,
    "evidence_form": null,
    "evidence_filed": null,
    "body_snippet": null
   },
   "formula": "market_value = traded_price (price date) / depositary_ratio x latest point-in-time SEC shares outstanding (share-count date shown; from the filing cover page, summed across share classes only where the issuer filing verifies the classes are economically equivalent (rule + evidence URL in the source text), else withheld; priced at the primary listed class, so where other classes trade at a different price the value is an approximation; restated only for issuer-verified splits after the count date); weighted-average share counts are never used",
   "split_adjustment": null,
   "share_count_as_of": "2026-07-27",
   "share_count_age_days_at_price_date": 88,
   "warning": null,
   "computed": "507.17 (price 2026-10-23) / 1 x 60,065,839 (shares at 2026-07-27) = 30,463,591,566"
  }
 },
 "share_basis": {
  "ratio": 1.0,
  "status": "domestic",
  "source": "10-K filer; SEC shares are the traded units",
  "evidence": null,
  "meaning": "SEC share counts and per-share figures are per underlying share; ratio = underlying shares per traded unit (1 for domestic common stock; N for an ADS representing N shares)."
 },
 "scores": {
  "graham": {
   "score": 58.4,
   "status": "ok",
   "complete": true,
   "missing_tests": [],
   "passes_all": false,
   "data_as_of": "2025-12-31",
   "data_as_of_meaning": "oldest current-period input the score depends on",
   "stale_inputs": [
    "Revenue"
   ],
   "history_from": "2013",
   "history_through": "2025",
   "price_as_of": "2026-10-23",
   "price_stale": false,
   "verification": {
    "verified": 14,
    "mismatch": 0,
    "unverified": 21,
    "not_cross_checked": 2
   },
   "coverage": null,
   "computed_on": "2026-10-26",
   "rules_url": "https://theclaudetrader.com/p/graham",
   "components": [
    {
     "test": "1",
     "name": "Adequate size",
     "value": 6.15,
     "unit": "revenue $B",
     "threshold": ">= 1",
     "points": 5.0,
     "max": 5
    },
    {
     "test": "2a",
     "name": "Current ratio",
     "value": 1.41,
     "threshold": ">= 2.0",
     "points": 6.1,
     "max": 15
    },
    {
     "test": "2b",
     "name": "Long-term debt vs working capital",
     "value": 7.2,
     "unit": "LTD / WC",
     "threshold": "<= 1.0",
     "points": 0.0,
     "max": 15,
     "note": null
    },
    {
     "test": "3",
     "name": "Positive earnings each of 10 years",
     "value": "10 of 10",
     "threshold": "10 of 10",
     "points": 15.0,
     "max": 15
    },
    {
     "test": "4",
     "name": "Dividends every year for 20 years",
     "value": "20 of 20",
     "threshold": "20 of 20",
     "points": 15.0,
     "max": 15,
     "missing_years": [],
     "cross_check": {
      "verified_years": [
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       2014,
       2015,
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       2019,
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      ],
      "mismatch_years": [],
      "unverified_years": [
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      ]
     },
     "note": null
    },
    {
     "test": "5",
     "name": "EPS growth, 3-yr avg now vs 10 yrs ago",
     "value": "4.54 -> 23.33 (+414%)",
     "threshold": ">= +33%",
     "points": 10.0,
     "max": 10
    },
    {
     "test": "6",
     "name": "P/E on 3-year average EPS",
     "value": 21.7,
     "threshold": "<= 15",
     "points": 4.9,
     "max": 15,
     "note": null
    },
    {
     "test": "7",
     "name": "P/B <= 1.5, or P/E x P/B <= 22.5",
     "value": "P/B 2.64, product 57.3",
     "threshold": "<= 1.5 or <= 22.5",
     "points": 2.4,
     "max": 10
    }
   ],
   "inputs": [
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     "kind": "price",
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     "url": "https://docs.alpaca.markets/docs/historical-stock-data-1",
     "period": "2026-10-23",
     "age_days": 3,
     "stale": false
    },
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     "stale": true
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     "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526326001/",
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    },
    {
     "name": "lt_debt",
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     "kind": "current",
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    {
     "name": "equity",
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     "name": "Net income FY2022",
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     "kind": "history",
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     "name": "Net income FY2023",
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    {
     "name": "Net income FY2024",
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    {
     "name": "Net income FY2025",
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     "fact_id": 24293628,
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     "age_days": 299
    },
    {
     "name": "Dividend years (Yahoo)",
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     "kind": "history",
     "source": "Yahoo Finance dividend history",
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     "note": "XBRL dividends-per-share facts cover 13 of the 20 years"
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    {
     "name": "Dividends per share FY2013 (XBRL)",
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     "source": "SEC XBRL CommonStockDividendsPerShareDeclared",
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     "period": "2013-12-31",
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    {
     "name": "Dividends per share FY2014 (XBRL)",
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    {
     "name": "Dividends per share FY2015 (XBRL)",
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    {
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    {
     "name": "Dividends per share FY2020 (XBRL)",
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    {
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    {
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     "kind": "history",
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    {
     "name": "EPS diluted FY2014",
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     "kind": "history",
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    {
     "name": "EPS diluted FY2015",
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     "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312518055887/",
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     "accession": "0001193125-18-055887",
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     "age_days": 3952
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    {
     "name": "EPS diluted FY2016",
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     "name": "EPS diluted FY2023",
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    {
     "name": "EPS diluted FY2024",
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    {
     "name": "EPS diluted FY2025",
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     "kind": "history",
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  {
   "fy": 2023,
   "period_end": "2023-12-31",
   "sec_frame": "CY2023",
   "value": 1169000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/",
   "accession": "0001193125-26-059193"
  },
  {
   "fy": 2024,
   "period_end": "2024-12-31",
   "sec_frame": "CY2024",
   "value": 1995000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/",
   "accession": "0001193125-26-059193"
  },
  {
   "fy": 2025,
   "period_end": "2025-12-31",
   "sec_frame": "CY2025",
   "value": 1137000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/",
   "accession": "0001193125-26-059193"
  }
 ],
 "eps_diluted_by_fy": [
  {
   "fy": 2013,
   "period_end": "2013-12-31",
   "sec_frame": "CY2013",
   "value": 2.61,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312516473754/",
   "accession": "0001193125-16-473754",
   "value_reported": 2.61,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2014,
   "period_end": "2014-12-31",
   "sec_frame": "CY2014",
   "value": 2.71,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000156459017010791/",
   "accession": "0001564590-17-010791",
   "value_reported": 2.71,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2015,
   "period_end": "2015-12-31",
   "sec_frame": "CY2015",
   "value": 4.29,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312518055887/",
   "accession": "0001193125-18-055887",
   "value_reported": 4.29,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2016,
   "period_end": "2016-12-31",
   "sec_frame": "CY2016",
   "value": 6.63,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312519049961/",
   "accession": "0001193125-19-049961",
   "value_reported": 6.63,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2017,
   "period_end": "2017-12-31",
   "sec_frame": "CY2017",
   "value": 11.25,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000156459020005784/",
   "accession": "0001564590-20-005784",
   "value_reported": 11.25,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2018,
   "period_end": "2018-12-31",
   "sec_frame": "CY2018",
   "value": 7.43,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000156459021006959/",
   "accession": "0001564590-21-006959",
   "value_reported": 7.43,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2019,
   "period_end": "2019-12-31",
   "sec_frame": "CY2019",
   "value": 9.74,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000156459022005965/",
   "accession": "0001564590-22-005965",
   "value_reported": 9.74,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2020,
   "period_end": "2020-12-31",
   "sec_frame": "CY2020",
   "value": 11.54,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000095017023004361/",
   "accession": "0000950170-23-004361",
   "value_reported": 11.54,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2021,
   "period_end": "2021-12-31",
   "sec_frame": "CY2021",
   "value": 11.22,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000095017024019275/",
   "accession": "0000950170-24-019275",
   "value_reported": 11.22,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2022,
   "period_end": "2022-12-31",
   "sec_frame": "CY2022",
   "value": 13.87,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000095017025024770/",
   "accession": "0000950170-25-024770",
   "value_reported": 13.87,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2023,
   "period_end": "2023-12-31",
   "sec_frame": "CY2023",
   "value": 18.82,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/",
   "accession": "0001193125-26-059193",
   "value_reported": 18.82,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2024,
   "period_end": "2024-12-31",
   "sec_frame": "CY2024",
   "value": 32.41,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/",
   "accession": "0001193125-26-059193",
   "value_reported": 32.41,
   "split_factor": 1.0,
   "split_basis": null
  },
  {
   "fy": 2025,
   "period_end": "2025-12-31",
   "sec_frame": "CY2025",
   "value": 18.77,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/",
   "accession": "0001193125-26-059193",
   "value_reported": 18.77,
   "split_factor": 1.0,
   "split_basis": null
  }
 ],
 "revenue_by_fy": [
  {
   "fy": 2013,
   "period_end": "2013-12-31",
   "sec_frame": "CY2013",
   "value": 2155551000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312516473754/",
   "accession": "0001193125-16-473754"
  },
  {
   "fy": 2014,
   "period_end": "2014-12-31",
   "sec_frame": "CY2014",
   "value": 2957951000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000156459017010791/",
   "accession": "0001564590-17-010791"
  },
  {
   "fy": 2015,
   "period_end": "2015-12-31",
   "sec_frame": "CY2015",
   "value": 3539570000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312518055887/",
   "accession": "0001193125-18-055887"
  },
  {
   "fy": 2016,
   "period_end": "2016-12-31",
   "sec_frame": "CY2016",
   "value": 3818749000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312519049961/",
   "accession": "0001193125-19-049961"
  },
  {
   "fy": 2017,
   "period_end": "2017-12-31",
   "sec_frame": "CY2017",
   "value": 3965600000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000156459020005784/",
   "accession": "0001564590-20-005784"
  },
  {
   "fy": 2018,
   "period_end": "2018-12-31",
   "sec_frame": "CY2018",
   "value": 4244300000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000156459021006959/",
   "accession": "0001564590-21-006959"
  },
  {
   "fy": 2019,
   "period_end": "2019-12-31",
   "sec_frame": "CY2019",
   "value": 4739100000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000156459022005965/",
   "accession": "0001564590-22-005965"
  },
  {
   "fy": 2020,
   "period_end": "2020-12-31",
   "sec_frame": "CY2020",
   "value": 4729900000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000095017023004361/",
   "accession": "0000950170-23-004361"
  },
  {
   "fy": 2021,
   "period_end": "2021-12-31",
   "sec_frame": "CY2021",
   "value": 5414000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000095017024019275/",
   "accession": "0000950170-24-019275"
  },
  {
   "fy": 2022,
   "period_end": "2022-12-31",
   "sec_frame": "CY2022",
   "value": 6161000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000095017025024770/",
   "accession": "0000950170-25-024770"
  },
  {
   "fy": 2023,
   "period_end": "2023-12-31",
   "sec_frame": "CY2023",
   "value": 5851000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/",
   "accession": "0001193125-26-059193"
  },
  {
   "fy": 2024,
   "period_end": "2024-12-31",
   "sec_frame": "CY2024",
   "value": 5662000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/",
   "accession": "0001193125-26-059193"
  },
  {
   "fy": 2025,
   "period_end": "2025-12-31",
   "sec_frame": "CY2025",
   "value": 6150000000.0,
   "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/",
   "accession": "0001193125-26-059193"
  }
 ],
 "dividend_years": [
  1994,
  1995,
  1996,
  1997,
  1998,
  1999,
  2000,
  2001,
  2002,
  2003,
  2004,
  2005,
  2006,
  2007,
  2008,
  2009,
  2010,
  2011,
  2012,
  2013,
  2014,
  2015,
  2016,
  2017,
  2018,
  2019,
  2020,
  2021,
  2022,
  2023,
  2024,
  2025,
  2026
 ],
 "insider_transactions_recent": [],
 "links": {
  "sec_filings": "https://www.sec.gov/edgar/browse/?CIK=0000916076",
  "sec_xbrl_companyfacts": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000916076.json",
  "sec_form4": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000916076&type=4",
  "sec_8k": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000916076&type=8-K",
  "yahoo": "https://finance.yahoo.com/quote/MLM",
  "stooq": "https://stooq.com/q/d/?s=mlm.us",
  "external_views_link_only": {
   "morningstar": "https://www.morningstar.com/search?query=MLM",
   "finviz": "https://finviz.com/quote.ashx?t=MLM",
   "stockanalysis": "https://stockanalysis.com/stocks/mlm/",
   "seeking_alpha": "https://seekingalpha.com/symbol/MLM",
   "openinsider": "http://openinsider.com/search?q=MLM",
   "google_news": "https://news.google.com/rss/search?q=MLM+stock"
  }
 },
 "machine_readable": {
  "json": "https://theclaudetrader.com/s/MLM.json",
  "markdown": "https://theclaudetrader.com/s/MLM.md",
  "research_packet": "https://theclaudetrader.com/r/MLM.json",
  "index": "https://theclaudetrader.com/llms.txt"
 },
 "dossier": null,
 "cite_as": "The Claude Trader snapshot 2026-10-26, https://theclaudetrader.com/s/MLM; data from SEC EDGAR XBRL and market prices (Alpaca Market Data, Yahoo Finance) to 2026-10-23.",
 "disclaimer": "Scores are deterministic rule outputs from public filings. fair_value_model is a labelled model estimate from the same filings (method at /fair-value), not an opinion or recommendation.",
 "fair_value_model": {
  "fair_value": 284.92,
  "fv_low": 253.54,
  "fv_high": 510.1,
  "fv_gap_pct": -43.8,
  "fv_verdict": "red",
  "fv_methods": 3,
  "fv_as_of": "2026-10-23",
  "fv_calculated_on": "2026-10-26",
  "fv_inputs_through": "2026-07-30",
  "fv_skipped": null,
  "unit": "per traded unit (share or ADS), same currency as the price",
  "methods": {
   "dcf": {
    "value": 253.54463673929308,
    "growth_used": 0.053912684057572546,
    "fcf_avg": 820000000.0,
    "inputs": {
     "fcf": {
      "value": 820000000.0,
      "years": [
       2023,
       2024,
       2025
      ],
      "by_year": [
       878000000.0,
       604000000.0,
       978000000.0
      ],
      "cfo": [
       {
        "value": 1528000000.0,
        "tag": "SEC XBRL NetCashProvidedByUsedInOperatingActivities",
        "period_end": "2023-12-31",
        "accession": "0001193125-26-059193",
        "filed": null,
        "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/"
       },
       {
        "value": 1459000000.0,
        "tag": "SEC XBRL NetCashProvidedByUsedInOperatingActivities",
        "period_end": "2024-12-31",
        "accession": "0001193125-26-059193",
        "filed": null,
        "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/"
       },
       {
        "value": 1785000000.0,
        "tag": "SEC XBRL NetCashProvidedByUsedInOperatingActivities",
        "period_end": "2025-12-31",
        "accession": "0001193125-26-059193",
        "filed": null,
        "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/"
       }
      ],
      "capex": [
       {
        "value": 650000000.0,
        "tag": "SEC XBRL PaymentsToAcquirePropertyPlantAndEquipment",
        "period_end": "2023-12-31",
        "accession": "0001193125-26-059193",
        "filed": null,
        "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/"
       },
       {
        "value": 855000000.0,
        "tag": "SEC XBRL PaymentsToAcquirePropertyPlantAndEquipment",
        "period_end": "2024-12-31",
        "accession": "0001193125-26-059193",
        "filed": null,
        "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/"
       },
       {
        "value": 807000000.0,
        "tag": "SEC XBRL PaymentsToAcquirePropertyPlantAndEquipment",
        "period_end": "2025-12-31",
        "accession": "0001193125-26-059193",
        "filed": null,
        "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/"
       }
      ]
     },
     "revenue_cagr_5y": {
      "value": 0.053912684057572546,
      "from": {
       "value": 4729900000.0,
       "tag": "SEC XBRL RevenueFromContractWithCustomerExcludingAssessedTax",
       "period_end": "2020-12-31",
       "accession": "0000950170-23-004361",
       "filed": null,
       "url": "https://www.sec.gov/Archives/edgar/data/916076/000095017023004361/"
      },
      "to": {
       "value": 6150000000.0,
       "tag": "SEC XBRL RevenueFromContractWithCustomerExcludingAssessedTax",
       "period_end": "2025-12-31",
       "accession": "0001193125-26-059193",
       "filed": null,
       "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/"
      }
     },
     "shares": {
      "value": 60065839.0,
      "tag": "SEC cover page 10-Q 0001193125-26-326001 (60,065,839 shares (single class on cover)); filing document https://www.sec.gov/Archives/edgar/data/916076/000119312526326001/mlm-20260630.htm",
      "period_end": "2026-07-27",
      "accession": "0001193125-26-326001",
      "filed": "2026-07-30",
      "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526326001/R1.htm"
     }
    }
   },
   "earnings": {
    "value": 510.09941450432467,
    "pe_used": 27.17631403858949,
    "pe_raw": 27.17631403858949,
    "pe_basis": "grid median (fewer than 3 SIC peers)",
    "inputs": {
     "eps": {
      "fy": 2025,
      "value": 18.77,
      "tag": "SEC XBRL EarningsPerShareDiluted",
      "period_end": "2025-12-31",
      "accession": "0001193125-26-059193",
      "filed": null,
      "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/",
      "value_reported": 18.77,
      "split_factor": 1.0
     }
    }
   },
   "graham": {
    "value": 284.92161549135886,
    "inputs": {
     "eps": {
      "fy": 2025,
      "value": 18.77,
      "tag": "SEC XBRL EarningsPerShareDiluted",
      "period_end": "2025-12-31",
      "accession": "0001193125-26-059193",
      "filed": null,
      "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526059193/",
      "value_reported": 18.77,
      "split_factor": 1.0
     },
     "bvps": {
      "value": 192.222404485185,
      "equity": {
       "value": 11546000000.0,
       "tag": "SEC XBRL StockholdersEquity",
       "period_end": "2026-06-30",
       "accession": "0001193125-26-326001",
       "filed": null,
       "url": "https://www.sec.gov/Archives/edgar/data/916076/000119312526326001/"
      },
      "shares": 60065839.0
     }
    }
   }
  },
  "method_note": "Median of up to three methods from SEC filings: owner-earnings DCF (3-yr avg FCF, 10-yr two-stage, growth = min(5-yr revenue CAGR, 10%) fading to 2.5%, 9% discount), trailing EPS x SIC-peer median P/E (8-35), Graham number. Model estimate, not advice.",
  "discount_rate": 0.09,
  "terminal_growth": 0.025,
  "verdict_rule": "green: fair value more than 10% above price; red: more than 10% below; amber: within 10%",
  "page": "https://theclaudetrader.com/fair-value"
 }
}