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Organization and Nature of Business (Detail) $ in Thousands, T in Millions | Mar. 04, 2022 USD ($) | Sep. 18, 2020 USD ($) | Dec. 31, 2022 T
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Processing capacity |  |  | 5.5
Blair |  |  |
Business Acquisition [Line Items] |  |  |
Base price consideration | $ | $ 6,450 |  |
Eagle Materials Holdings |  |  |
Business Acquisition [Line Items] |  |  |
Processing capacity |  |  | 3.5
Base price consideration | $ |  | $ 2,000 |
Eagle Materials Holdings | BNSF [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Processing capacity |  |  | 1.6

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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585 + Details
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