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Goodwill and Intangibles, Net - Schedule of Changes in the Carrying Amount of Goodwill (Details) $ in Millions	9 Months Ended
	Sep. 30, 2025 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 126.7
Translation adjustments	0.2
Ending balance	126.9
Infrastructure
Goodwill [Roll Forward]
Beginning balance	105.3
Translation adjustments	0.2
Ending balance	105.5
Spectrum
Goodwill [Roll Forward]
Beginning balance	21.4
Translation adjustments	0.0
Ending balance	$ 21.4

X

- Definition

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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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) asset representing future economic benefit 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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