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- Definition

For sensitivity analysis purposes, represents the percentage points added to or deducted from the discount rate used in a discounted cash flow analysis in connection with impairment testing.

+ References

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- Definition

Number Of Reporting Components

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- Definition

Reporting Unit, Not Substantially Exceeding Carrying Amount, Number

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- Definition

Amount of accumulated impairment loss for asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

+ References

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- Definition

Amount of fair value of reporting unit in excess of carrying amount.

+ References

No definition available.

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- Definition

Percentage of fair value of reporting unit in excess of carrying amount.

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Business, Basis of Presentation and Significant Accounting Policies - Goodwill and Indefinite-Lived Intangible Assets (Details) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2024 USD ($) yr reportingUnit	Dec. 31, 2024 USD ($) yr reportingUnit	Dec. 31, 2023 reportingUnit	Dec. 31, 2022 USD ($) reportingUnit
Goodwill [Line Items]
Impairment loss		$ 110.3		$ 116.7
Goodwill
Goodwill [Line Items]
Discount rate sensitivity analysis, spread on discount rate for which evaluation was completed (percentage)		1.00%
Terminal Growth Rate
Goodwill [Line Items]
Goodwill impairment testing, measurement input		0.030
Number of Years of Discounted Cash Flows \| Minimum
Goodwill [Line Items]
Goodwill impairment testing, measurement input \| yr		5
Number of Years of Discounted Cash Flows \| Maximum
Goodwill [Line Items]
Goodwill impairment testing, measurement input \| yr		7
Discount Rate \| Minimum
Goodwill [Line Items]
Goodwill impairment testing, measurement input		0.095
Discount Rate \| Maximum
Goodwill [Line Items]
Goodwill impairment testing, measurement input		0.110
Power Delivery
Goodwill [Line Items]
Number of reporting components \| reportingUnit	5
Impairment loss		$ 0.0		$ 0.0
Number of reporting units not substantially exceeding reporting value \| reportingUnit	1
Goodwill impairment testing, number of reporting units \| reportingUnit			1	1
Power Delivery \| Power Delivery Segment, Reporting Unit One
Goodwill [Line Items]
Impairment loss	$ 0.0
Value of fair value in excess of carrying value	$ 47.1
Goodwill impairment testing, reporting unit, percentage of estimated fair value in excess of carrying value (percentage)	16.00%
Power Delivery \| Terminal Growth Rate \| Power Delivery Segment, Reporting Unit One
Goodwill [Line Items]
Goodwill impairment testing, measurement input	0.03
Power Delivery \| Number of Years of Discounted Cash Flows \| Power Delivery Segment, Reporting Unit One
Goodwill [Line Items]
Goodwill impairment testing, measurement input \| yr	5
Power Delivery \| Discount Rate \| Power Delivery Segment, Reporting Unit One
Goodwill [Line Items]
Goodwill impairment testing, measurement input	0.12
Communications
Goodwill [Line Items]
Impairment loss		$ 0.0		$ 0.0
Goodwill impairment testing, number of reporting units \| reportingUnit		2
Clean Energy and Infrastructure
Goodwill [Line Items]
Impairment loss		$ 0.0		$ 0.0
Goodwill impairment testing, number of reporting units \| reportingUnit		1	3	1
Pipeline Infrastructure
Goodwill [Line Items]
Impairment loss		$ 110.3		$ 116.7
Goodwill impairment testing, number of reporting units \| reportingUnit		1	1	4