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v3.23.1

Commitments and Contingencies (Details) - USD ($) | 6 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Mar. 30, 2023
Guarantee Obligations [Line Items] |  |
Additional bonding capacity | $ 305,800,000 |
Cash collateral required for guarantees, period (greater than) | 2 years |
Surety Bonds |  |
Guarantee Obligations [Line Items] |  |
Guarantee liability | $ 294,200,000 |
Facility Agreement | Powell (UK) Limited |  |
Guarantee Obligations [Line Items] |  |
Guarantee liability | 7,700,000 |
Revolving credit facility | 9,900,000 |
Revolving Credit Facility | U.S. Revolver |  |
Guarantee Obligations [Line Items] |  |
Revolving credit facility | 125,000,000 | $ 75,000,000
Revolving Credit Facility | U.S. Revolver | Financial Standby Letter of Credit |  |
Guarantee Obligations [Line Items] |  |
Guarantee liability | $ 44,800,000 |

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- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248 + Details
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