Acquisitions - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Jan. 07, 2021
Business Acquisition [Line Items]
Goodwill	$ 2,920,466	$ 2,913,384
ION Media
Business Acquisition [Line Items]
Accounts receivable			$ 135,006
Other current assets			25,353
Programming rights			169,027
Property and equipment			122,520
Operating lease right-of-use assets			72,717
Other assets			2,295
Goodwill			1,796,148
Amortizable intangible assets:
Accounts payable			(9,674)
Unearned revenue			(13,043)
Accrued expenses			(15,814)
Current portion of programming liabilities			(92,721)
Other current liabilities			(24,810)
Programming liabilities			(191,837)
Deferred tax liabilities			(265,291)
Operating lease liabilities			(78,438)
Other long-term liabilities			(36,883)
Total consideration, net of cash acquired			2,677,755
ION Media | INYO affiliation agreement
Amortizable intangible assets:
Amortizable intangible assets:			422,000
ION Media | Other affiliation relationships
Amortizable intangible assets:
Amortizable intangible assets:			22,000
ION Media | Advertiser relationships
Amortizable intangible assets:
Amortizable intangible assets:			143,000
ION Media | Trade names
Amortizable intangible assets:
Amortizable intangible assets:			72,000
ION Media | Indefinite-lived intangible assets - FCC licenses
Business Acquisition [Line Items]
Indefinite-lived intangible assets - FCC licenses			$ 424,200