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Accounts Receivable, net | 6 Months Ended
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Mar. 31, 2024
Receivables [Abstract] |
Accounts Receivable, net | 4. Accounts Receivable, net Accounts receivable of $420.8 and $442.3, is net of an allowance for doubtful accounts of $9.0 and $5.1 and includes amounts of retention on incomplete projects to be completed within one year of $60.8 and $58.7 as of March 31, 2024 and September 30, 2023, respectively.

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- Definition The entire disclosure for accounts receivable, contract receivable, receivable held-for-sale, and nontrade receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//310/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//326/tableOfContent + Details
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- References No definition available. + Details
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