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Commitments and Contingencies (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Accrued Insurance, Current	$ 11,435	$ 11,158
Loss Contingencies [Line Items]
Letters of Credit Outstanding, Amount	5,545
Revenue, Remaining Performance Obligation, Amount	1,295,207
Estimated cost of completion of bonded projects	142,193
Estimated cost of completion of bonded projects	142,193
Purchase Commitment, Remaining Minimum Amount Committed	0
Insurance Related [Member]
Loss Contingencies [Line Items]
Letters of Credit Outstanding, Amount	$ 5,545	$ 4,756

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Estimated cost of completion of bonded projects

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Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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