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Debt Obligations - Spectrum Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	Aug. 04, 2025	Sep. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Accrued interest and exit fees (current portion)		$ 60.2	$ 61.0
Senior Notes | Spectrum
Debt Instrument [Line Items]
Threshold percentage difference from the present value of the remaining cash flows	10.00%
Additional exit fee payable	$ 9.9
Exit fees (non-current portion)		25.8	15.9
Accrued interest and exit fees (current portion)		$ 26.1	$ 20.5
Exit fees	$ 2.0
Senior Notes | Spectrum | HC2 Broadcasting Holdings, Inc
Debt Instrument [Line Items]
Exercise price of warrants (in usd per share)	$ 0.01
Senior Notes | Spectrum | HC2 Broadcasting Holdings, Inc | Institutional Investors
Debt Instrument [Line Items]
lenders hold (in shares)	20,408
Number of warrants outstanding (in shares)	145,825
Senior Notes | Spectrum | DTV America Corporation | Institutional Investors
Debt Instrument [Line Items]
lenders hold (in shares)	2,222,222
Senior Notes | Spectrum | Weighted Average
Debt Instrument [Line Items]
Interest rate, effective percentage		25.00%	22.80%
8.50% and 11.45% Senior Spectrum Notes | Senior Notes | Spectrum
Debt Instrument [Line Items]
Face amount	$ 69.7
8.50% Note | Senior Notes | Spectrum
Debt Instrument [Line Items]
Interest rate	8.50%	8.50%
11.45% Notes | Senior Notes | Spectrum
Debt Instrument [Line Items]
Interest rate	11.45%	11.45%

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