Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Summary of Significant Accounting Policies [Line Items]
Unearned revenue	$ 12,200	$ 18,200
Unearned revenue recognized during the year	13,400
Programming assets, amortization expense, next twelve months	164,300
Programming assets, amortization expense, year two	113,100
Programming assets, amortization expense, year three	83,600
Programming assets, amortization expense, year four	46,800
Programming assets, amortization expense, year five	13,400
Programming assets, amortization expense, thereafter	11,100
Deferred FCC repack income	41,863	46,205
Estimated liabilities for unpaid claims	$ 10,900	$ 10,400
Antidilutive securities excluded from computation of earnings per share, performance criteria not met, shares	420,000
Anti-dilutive securities (in shares)	3,300,000	100,000
Advertising | Revenue Benchmark | Advertising
Summary of Significant Accounting Policies [Line Items]
Concentration risk, percentage	64.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Summary of Significant Accounting Policies [Line Items]
Expected period of revenue recognition	12 months
Other affiliation relationships
Summary of Significant Accounting Policies [Line Items]
Estimated useful life	20 years
Customer lists and advertiser relationships
Summary of Significant Accounting Policies [Line Items]
Estimated useful life	20 years
FCC licenses | Maximum
Summary of Significant Accounting Policies [Line Items]
FCC license term	8 years