v3.25.4

Revenue Recognition - Schedule of Net Accounts Receivable (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Sep. 30, 2025
--- | --- | ---
Revenue from Contract with Customer [Abstract] |  |
Billed | $ 1,755,800 | $ 1,934,300
Contract retentions | 680,500 | 647,600
Total accounts receivable—gross | 2,436,300 | 2,581,900
Allowance for doubtful accounts and credit losses | (87,900) | (84,800)
Total accounts receivable—net | $ 2,348,427 | $ 2,497,147

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- Definition Amount to be collected within one year of the balance sheet date (or one operating cycle, if longer) from customers in accordance with the contractual provisions of long-term contracts or programs including amounts billed and unbilled as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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