Organization and Business Operations (Details)	Sep. 30, 2020 TelevisionStation Market State. RadioStation	Sep. 19, 2019
Organization And Business Operations [Line Items]
Number of full power television stations owned, operated, programmed or provided sales and other services	197
Number of markets in which the Company's stations broadcast \| Market	115
Number of states in which the Company's stations broadcast \| State.	39
Number of full power television stations owned or operated by independent third parties	36
Number of AM radio station \| RadioStation	1
Percentage of US television household reach	39.00%
TV Food Network [Member]
Organization And Business Operations [Line Items]
Ownership stake	31.30%	31.30%

Number of AM radio station.

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- Definition

Number of full power television stations owned, operated, programmed or provided sales and other services.

+ References

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Number of full power television stations owned or operated by independent third parties, including variable interest entities.

+ References

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Number of states.

+ References

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Number of generally recognized television markets, or Designated Market Areas (DMA's), in which the Company's stations broadcast.

+ References

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Organization and business operations.

+ References

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Percentage of US television household reach.

+ References

No definition available.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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