Summary of Significant Accounting Policies - Additional Information (Details)			12 Months Ended
	Oct. 19, 2022 USD ($)	Jun. 01, 2022 USD ($)	Dec. 31, 2022 USD ($) ReportingUnit Segment shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares
Significant Accounting Policies [Line Items]
Assets held for sale	$ 236,000,000.0			$ 45,300,000
Equity method investments, impairments			$ 0	0	$ 0
Advertising expense			$ 23,500,000	$ 20,500,000	$ 14,900,000
Stock options and restricted stock units with potentially dilutive effect (in shares) | shares			26,000	0	122,000
Number of reportable segments | Segment			1
Amortization of broadcast rights			$ 192,900,000	$ 121,100,000	$ 137,500,000
Programming cost			$ 66,200,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Real Estate Property One [Member]
Significant Accounting Policies [Line Items]
Proceeds from sale of real estate		$ 45,300,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Real Estate Property Two [Member]
Significant Accounting Policies [Line Items]
Proceeds from sale of real estate	199,500,000
Long lived assets held-for-sale, impairment charge	$ 36,800,000
Broadcast [Member] | Television Station [Member]
Significant Accounting Policies [Line Items]
Number of reporting units | ReportingUnit			1
Broadcast [Member] | Cable Network [Member]
Significant Accounting Policies [Line Items]
Number of reporting units | ReportingUnit			1
Other Segments [Member] | Digital [Member]
Significant Accounting Policies [Line Items]
Number of reporting units | ReportingUnit			2
Network affiliation agreements [Member]
Significant Accounting Policies [Line Items]
Network affiliation agreements useful life			15 years
Tribune [Member] | Network affiliation agreements [Member]
Significant Accounting Policies [Line Items]
Network affiliation agreements useful life			15 years
Accounting Standards Update 2021-05 [Member]
Significant Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adopted [true false]			true
Change in accounting principle, accounting standards update, adoption date			Jan. 01, 2022
Change in accounting principle, accounting standards update, immaterial effect [true false]			true
Accounting Standards Update 2020-04 [Member]
Significant Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, immaterial effect [true false]			true
Investee Voting Securities [Member]
Significant Accounting Policies [Line Items]
Ownership stake			20.00%