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Acquisition - Additional Information (Details) - CSI Electrical Contractors, Inc - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Preliminary estimated net asset adjustments	$ 1.0
Total consideration, net of net asset adjustments	$ 80.7
Margin Guarantee
Business Acquisition [Line Items]
Change in contingent consideration		$ 0.5	$ 0.6	$ 2.0
Certain Performance Targets and Continued Employment of Key Executives
Business Acquisition [Line Items]
Change in contingent consideration		$ 5.4	$ 4.0	$ 0.4

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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