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Income Taxes (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Operating Loss Carryforwards [Line Items]          
Income tax expense (benefit) $ (7,100,000) $ 3,100,000 $ 4,200,000 $ 3,900,000  
Unrecognized tax benefits that would impact effective tax rate $ 0 $ 0 0 $ 0  
Operating loss carryforwards, decrease for uncertain tax positions     $ 58,700,000    
Domestic Tax Authority          
Operating Loss Carryforwards [Line Items]          
Operating loss carryforwards         $ 174,300,000
Operating loss carryforwards, U.S.         117,700,000
Domestic Tax Authority | Various Nonconsolidated Subsidiaries          
Operating Loss Carryforwards [Line Items]          
Operating loss carryforwards         149,400,000
Net operating loss, not subject to expiration         113,300,000
Net operating losses subject to expiration         36,100,000
Domestic Tax Authority | R2 Technologies          
Operating Loss Carryforwards [Line Items]          
Operating loss carryforwards         102,800,000
Domestic Tax Authority | DTV America          
Operating Loss Carryforwards [Line Items]          
Operating loss carryforwards         44,100,000
Domestic Tax Authority | Other Entities          
Operating Loss Carryforwards [Line Items]          
Operating loss carryforwards         $ 2,500,000