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v3.25.3

Commitments and Contingencies (Details) $ in Millions | 12 Months Ended
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Sep. 30, 2025 USD ($)
Guarantor Obligations [Line Items] |
Additional bonding capacity | $ 782.7
Cash collateral requirement for guarantees | 2 years
Probable liquidated damages | $ 3.7
Loss contingency, estimate of actual or projected loss | 4.3
Failure to meet contractual commitments, reduction to revenue | 3.4
Surety Bond |
Guarantor Obligations [Line Items] |
Guarantee liability, letters of credit | 417.3
Facility Agreement | Powell (UK) Limited |
Guarantor Obligations [Line Items] |
Guarantee liability, letters of credit | 3.9
Revolving credit facility | 20.2
Amount of credit facility remaining borrowing capacity | 16.3
U.S. Revolver | Amended and Restated Credit Agreement |
Guarantor Obligations [Line Items] |
Amount of credit facility remaining borrowing capacity | 72.5
U.S. Revolver | Amended and Restated Credit Agreement | Financial Standby Letter of Credit |
Guarantor Obligations [Line Items] |
Guarantee liability, letters of credit | $ 77.5

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