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Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
SBI
Related Party Transaction [Line Items]
Payments to related party	$ 2.6	$ 3.5	$ 8.1	$ 8.5
Related party
Related Party Transaction [Line Items]
Other liabilities	14.0		14.0		$ 0.1
Regulatory and transaction fees	2.4	1.1	7.8	5.9
Related party | Microwave communication network JVs
Related Party Transaction [Line Items]
Payments to related party	$ 18.9	$ 13.5	$ 33.3	$ 28.3

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