Intangible Assets and Goodwill - Schedule of Changes in Carrying Amount of Goodwill for Each Reportable Segment (Detail) $ in Millions	3 Months Ended
Mar. 31, 2026 USD ($)
Goodwill [Line Items]
Goodwill, balance	$ 783.6
Foreign currency translation	(3.3)
Goodwill, balance	780.3
Connections [Member]
Goodwill [Line Items]
Goodwill, balance	748.0
Foreign currency translation	(3.3)
Goodwill, balance	744.7
All Other [Member]
Goodwill [Line Items]
Goodwill, balance	35.6
Goodwill, balance	$ 35.6

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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