Acquisitions, Goodwill, and Other Intangible Assets, Net (Tables)

3 Months Ended

Mar. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill by Segment

The following table provides a reconciliation of changes in goodwill by reportable segment for the period indicated (in millions):

	Communications		Clean Energy and Infrastructure		Power Delivery		Pipeline Infrastructure		Total Goodwill
Goodwill, gross, as of December 31, 2024 (a)	$	546.5	$	742.3	$	395.4	$	629.2	$	2,313.4
Accumulated impairment loss (b)	—		—		—		(110.3)		(110.3)
Goodwill, net, as of December 31, 2024 (a)	$	546.5	$	742.3	$	395.4	$	518.9	$	2,203.1
Measurement period adjustments (c)	—		—		1.8		—		1.8
Goodwill, net, as of March 31, 2025	$	546.5	$	742.3	$	397.2	$	518.9	$	2,204.9

(a)    Recast to reflect segment changes.

(b)    Accumulated impairment loss includes the effects of currency translation gains and/or losses.

(c)    Measurement period adjustments represent adjustments, net, to preliminary estimates of fair value within the measurement period of up to one year from the date of acquisition.

Schedule of Finite-Lived Intangible Assets

The following table provides a reconciliation of changes in other intangible assets, net, for the period indicated (in millions):

	Other Intangible Assets, Net
	Customer Relationships and Backlog		Trade Names		Other (a)		Total
Other intangible assets, gross, as of December 31, 2024	$	1,057.6	$	226.1	$	76.5	$	1,360.2
Accumulated amortization	(523.4)		(63.1)		(46.3)		(632.8)
Other intangible assets, net, as of December 31, 2024	$	534.2	$	163.0	$	30.2	$	727.4
Currency translation adjustments	—		—		(0.1)		(0.1)
Amortization expense	(26.3)		(5.1)		(1.2)		(32.6)
Other intangible assets, net, as of March 31, 2025	$	507.9	$	157.9	$	28.9	$	694.7

(a)Consists principally of pre-qualifications and non-compete agreements.