Goodwill and Intangible Assets - Goodwill (Details) $ in Millions	6 Months Ended
Jun. 30, 2026 USD ($)
Goodwill and Intangible Assets
Goodwill, Beginning Balance	$ 856.9
Goodwill acquired during the period	194.6
Goodwill, Ending Balance	1,051.5
Utilities
Goodwill and Intangible Assets
Goodwill, Beginning Balance	703.5
Goodwill, Ending Balance	703.5
Energy
Goodwill and Intangible Assets
Goodwill, Beginning Balance	153.4
Goodwill acquired during the period	194.6
Goodwill, Ending Balance	$ 348.0

Amount, after accumulated impairment loss, of 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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+ Details

- 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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