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v3.24.2

Intangible Assets, Goodwill, Acquisitions, and Divestitures - Additional Information (Details) $ in Millions |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jan. 12, 2024 USD ($) Subsidiary | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) Company | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) Company
Finite Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization of intangible assets |  | $ 8.6 | $ 10.8 | $ 27.4 | $ 33.7
Weighted average amortization periods of intangible assets acquired |  |  |  |  | 7 years
Number of unrelated maintenance services companies acquired | Company |  |  | 3 |  | 3
Consideration paid, net of cash acquired |  |  |  | 0.0 | $ 13.8
Number of sale of fully owned subsidiaries | Subsidiary | 1 |  |  |  |
Cash consideration | $ 51.6 |  |  | 51.6 | $ 0.0
Selling, General and Administrative Expenses [Member] |  |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |  |
Gain on sale of fully owned subsidiaries |  |  |  | $ 44.0 |
Unrelated Maintenance Services Companies |  |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |  |
Acquisition of operations, Percentage |  |  | 100.00% |  | 100.00%
Consideration paid, net of cash acquired |  |  |  |  | $ 13.8
Customer Relationships |  |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |  |
Identifiable assets acquired related to intangible assets |  |  | $ 4.0 |  | $ 4.0

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 985 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481283/985-20-50-2 + Details
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