Acquisitions - Acquisition Information (Details) $ / shares in Units, $ in Thousands, home in Millions			3 Months Ended
	Jan. 05, 2022 USD ($)	Jan. 07, 2021 USD ($) home station $ / shares shares	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Total consideration, net of cash acquired			$ 13,797	$ 2,679,798
Goodwill			$ 2,920,466		$ 2,913,384
Common stock, Class A | Berkshire Hathaway
Business Acquisition [Line Items]
Number of shares purchasable by warrant (up to) | shares		23,100,000
Exercise right of warrants ( in dollars per share) | $ / shares		$ 13
ION Media
Business Acquisition [Line Items]
Total consideration, net of cash acquired		$ 2,677,755
Goodwill		1,796,148
Business acquisition, purchase price		$ 2,650,000
Exercise right of warrants ( in dollars per share) | $ / shares		$ 13
Number of stations to be divested | station		23
Consideration received for business		$ 30,000
ION Media | United States
Business Acquisition [Line Items]
Number of US homes | home		100
ION Media | Preferred Stock | Berkshire Hathaway
Business Acquisition [Line Items]
Preferred equity investment		$ 600,000
ION Media | Common stock, Class A | Berkshire Hathaway
Business Acquisition [Line Items]
Number of shares purchasable by warrant (up to) | shares		23,100,000
ION Media | Advertiser relationships
Business Acquisition [Line Items]
Amortizable intangible assets		$ 143,000
Intangible asset, estimated amortization period		7 years
ION Media | INYO affiliation agreement
Business Acquisition [Line Items]
Amortizable intangible assets		$ 422,000
Intangible asset, estimated amortization period		20 years
ION Media | Other affiliation relationships
Business Acquisition [Line Items]
Amortizable intangible assets		$ 22,000
Intangible asset, estimated amortization period		10 years
ION Media | Trade names
Business Acquisition [Line Items]
Amortizable intangible assets		$ 72,000
Intangible asset, estimated amortization period		10 years
Nuvyyo
Business Acquisition [Line Items]
Total consideration, net of cash acquired	$ 13,800
Amortizable intangible assets	7,200
Goodwill	$ 7,100
Nuvyyo | Minimum
Business Acquisition [Line Items]
Intangible asset, estimated amortization period	3 years
Nuvyyo | Maximum
Business Acquisition [Line Items]
Intangible asset, estimated amortization period	5 years