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v3.25.1

Commitments and Contingencies (Details) $ in Millions | 6 Months Ended
--- | ---
Mar. 31, 2025 USD ($)
Guarantee Obligations [Line Items] |
Additional bonding capacity | $ 779.7
Cash collateral required for guarantees, period (greater than) | 2 years
Contracts with probable exposure to liquidated damages | $ 2.7
Probable exposure potential increase | 3.6
Change in contract estimates, reduction to revenue | 2.5
Surety Bonds |
Guarantee Obligations [Line Items] |
Guarantee liability | 420.3
Facility Agreement | Powell (UK) Limited |
Guarantee Obligations [Line Items] |
Guarantee liability | 4.0
Revolving credit facility | 19.4
Amount of credit facility remaining borrowing capacity | 15.4
Revolving Credit Facility | U.S. Revolver |
Guarantee Obligations [Line Items] |
Amount of credit facility remaining borrowing capacity | 85.6
Revolving Credit Facility | U.S. Revolver | Financial Standby Letter of Credit |
Guarantee Obligations [Line Items] |
Guarantee liability | $ 64.4

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