Segments and Related Information - Schedule of Financial Information by Reportable Segment - Depreciation and Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Depreciation and Amortization:
Consolidated depreciation and amortization	$ 422.8	$ 297.8	$ 235.5
Reportable Segments | Communications
Depreciation and Amortization:
Consolidated depreciation and amortization	99.3	87.1	65.0
Reportable Segments | Clean Energy and Infrastructure
Depreciation and Amortization:
Consolidated depreciation and amortization	43.5	18.2	14.1
Reportable Segments | Oil and Gas
Depreciation and Amortization:
Consolidated depreciation and amortization	207.8	156.6	127.2
Reportable Segments | Power Delivery
Depreciation and Amortization:
Consolidated depreciation and amortization	61.5	24.7	20.0
Reportable Segments | Other
Depreciation and Amortization:
Consolidated depreciation and amortization	0.0	0.1	0.1
Corporate
Depreciation and Amortization:
Consolidated depreciation and amortization	$ 10.7	$ 11.1	$ 9.1