Segments and Related Information - Schedule of Financial Information by Reportable Segment - Depreciation and Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Depreciation and Amortization:
Consolidated depreciation and amortization	$ 506.6	$ 603.2	$ 507.1
Reportable Segments | Communications
Depreciation and Amortization:
Consolidated depreciation and amortization	113.3	136.8	126.4
Reportable Segments | Clean Energy and Infrastructure
Depreciation and Amortization:
Consolidated depreciation and amortization	123.0	144.2	87.0
Reportable Segments | Power Delivery
Depreciation and Amortization:
Consolidated depreciation and amortization	131.3	158.9	147.8
Reportable Segments | Pipeline Infrastructure
Depreciation and Amortization:
Consolidated depreciation and amortization	128.8	152.9	134.6
Reportable Segments | Other
Depreciation and Amortization:
Consolidated depreciation and amortization	0.0	0.0	0.0
Corporate
Depreciation and Amortization:
Consolidated depreciation and amortization	$ 10.2	$ 10.4	$ 11.3