Acquisitions and Dispositions - Key assumptions used in the discounted cash flow analysis (Details)	Sep. 30, 2025
Discount rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
FCC license	0.095
Operating profit margin ranges
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
FCC license	0.275
Market long-term revenue growth rates
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
FCC license	0.005