Segments and Related Information (Tables)

3 Months Ended

Mar. 31, 2025

Segment Reporting [Abstract]

Schedule of Financial Information by Reportable Segment

The tables below, which may contain slight summation differences due to rounding, reflect certain financial data for each reportable segment and have been recast as described above.

Three Months Ended March 31,	Communications		Clean Energy and Infrastructure		Power Delivery		Pipeline Infrastructure		Other		Eliminations		Total Reportable Segments
2025:
Revenue (a)	$	680.9	$	915.8	$	899.7	$	356.5	$	—	$	(5.2)	$	2,847.7
Costs of revenue, excluding depreciation and amortization	615.9		807.5		817.5		300.3		—		(5.2)		2,536.0
Other segment items (b)	18.2		51.2		30.9		11.7		(8.0)		—		104.0
EBITDA	$	46.8	$	57.1	$	51.3	$	44.5	$	8.0	$	—	$	207.7
2024: (c)
Revenue (a)	$	505.7	$	753.5	$	797.9	$	633.8	$	—	$	(4.1)	$	2,686.8
Costs of revenue, excluding depreciation and amortization	459.5		689.9		709.1		518.2		—		(4.1)		2,372.6
Other segment items (b)	20.6		43.2		38.3		22.8		(6.9)		—		118.0
EBITDA	$	25.6	$	20.4	$	50.5	$	92.8	$	6.9	$	—	$	196.3

(a)    Total consolidated revenue equals total reportable segment revenue of $2,847.7 million and $2,686.8 million for the three month periods ended March 31, 2025 and 2024, respectively, as there is no revenue recorded within Corporate results.

(b)    For both of the three month periods ended March 31, 2025 and 2024, other segment items for each reportable segment includes general and administrative expenses, equity in earnings or losses of unconsolidated affiliates, net, and other income or expense, net.

(c)    Recast to reflect segment changes.

	Three Months Ended March 31,
Depreciation and Amortization:	2025		2024 (a)
Communications	$	16.1	$	20.8
Clean Energy and Infrastructure	27.7		32.3
Power Delivery	37.1		46.9
Pipeline Infrastructure	25.8		38.7
Other	—		—
Corporate	2.2		2.4
Consolidated depreciation and amortization	$	108.9	$	141.1

(a)    Recast to reflect segment changes.

Assets:	March 31, 2025		December 31, 2024 (a)
Communications	$	1,716.0	$	1,673.8
Clean Energy and Infrastructure	2,509.6		2,706.4
Power Delivery	2,464.6		2,489.9
Pipeline Infrastructure	1,575.2		1,599.7
Other	318.6		318.2
Corporate	277.9		187.3
Consolidated assets	$	8,861.9	$	8,975.3

(a)    Recast to reflect segment changes.

	Three Months Ended March 31,
Capital Expenditures:	2025		2024 (a)
Communications	$	7.1	$	3.4
Clean Energy and Infrastructure	7.9		5.3
Power Delivery	21.2		7.8
Pipeline Infrastructure	10.1		7.1
Other	—		—
Corporate	1.0		1.8
Consolidated capital expenditures	$	47.3	$	25.4

(a)    Recast to reflect segment changes.

Reconciliation of Consolidated Income before Income Taxes to EBITDA

	Three Months Ended March 31,
EBITDA Reconciliation:	2025		2024
Income (loss) before income taxes	$	8.9	$	(45.5)
Plus:
Interest expense, net	39.0		52.1
Depreciation	76.2		107.4
Amortization	32.6		33.7
Corporate	50.9		48.7
Segment EBITDA	$	207.7	$	196.3