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Acquisitions - Other Acquisitions (Details) - USD ($) $ in Millions |  |  | 3 Months Ended
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 01, 2021 | Mar. 31, 2021
MEP Holdings |  |  |
Acquisitions |  |  |
Total purchase price | $ 57.3 |  |
Purchase price paid in cash | 45.2 |  |
Promissory note payable | 7.6 |  |
Mechanical Contractor Kentucky |  |  |
Acquisitions |  |  |
Total purchase price | 20.6 |  |
Mechanical Contractor Indiana |  |  |
Acquisitions |  |  |
Total purchase price | $ 4.7 |  |
Ivey |  |  |
Acquisitions |  |  |
Total purchase price |  | $ 79.1 |
Purchase price paid in cash |  | 64.1 |
Promissory note payable |  | 8.0 |
Other amount payable |  | $ 0.4 |
Mechanical Contractor Utah |  |  |
Acquisitions |  |  |
Total purchase price |  |  | $ 18.1

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