Acquisitions - Fair value of assets acquired and liabilities assumed, ION Media (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 07, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill	$ 1,968,574	$ 2,920,574	$ 2,913,384		$ 1,203,212
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
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
Business Acquisition [Line Items]
Amortizable intangible assets:				422,000
ION Media | Other affiliation relationships
Business Acquisition [Line Items]
Amortizable intangible assets:				22,000
ION Media | Advertiser relationships
Business Acquisition [Line Items]
Amortizable intangible assets:				143,000
ION Media | Trade names
Business Acquisition [Line Items]
Amortizable intangible assets:				72,000
ION Media | FCC licenses
Business Acquisition [Line Items]
Indefinite-lived intangible assets - FCC licenses				$ 424,200