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Represents the amount used to determine annual LMA fees required to be paid to related party.

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Represents the percentage of each station's net broadcast revenue due to the related party used to determine amount of annual LMA fees required to be paid.

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Percentage of capital stock or assets to be acquired in business combination.

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RELATED PERSON TRANSACTIONS - Cunningham Broadcasting Corporation (Details) $ in Millions	1 Months Ended		3 Months Ended		9 Months Ended
	Aug. 31, 2016 USD ($)	Apr. 30, 2016 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) renewal	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Related Party Transaction [Line Items]
Consolidated total debt			$ 12,463.0		$ 12,463.0
Total revenues			$ 1,539.0	$ 1,125.0	$ 4,431.0	$ 2,618.0
Affiliated Entity \| Cunningham
Related Party Transaction [Line Items]
Right to acquire capital stock			100.00%		100.00%
Total payments made under the LMA excluded from liabilities			$ 53.0		$ 53.0		$ 51.0
Remaining purchase price			54.0		54.0		54.0
Purchase options, broadcast stations			$ 0.2		$ 0.2
Proceeds from sale of master control equipment		$ 1.0
Annual revenue from master control services		$ 0.2
Annual revenue for share service	$ 1.0
Affiliated Entity \| Cunningham \| LMA
Related Party Transaction [Line Items]
Number of additional renewal terms \| renewal					2
Agreement renewal period					5 years
Percentage of net broadcast revenue used to determine annual LMA fees required to be paid			3.00%		3.00%
Amount used to determine annual LMA fees required to be paid			$ 5.0		$ 5.0
Annual increase in aggregate purchase price			6.00%		6.00%
Lease payments made to entities			$ 2.0	2.0	$ 6.0	6.0
Cunningham license related assets \| Cunningham
Related Party Transaction [Line Items]
Agreement renewal period					8 years
Total revenues			39.0	$ 38.0	$ 111.0	$ 111.0
Guarantee Obligations
Related Party Transaction [Line Items]
Unconditional and irrevocably guaranteed debt			51.0		51.0		57.0
Guarantee Obligations \| Affiliated Entity \| Cunningham
Related Party Transaction [Line Items]
Unconditional and irrevocably guaranteed debt			42.0		42.0
Consolidated VIEs
Related Party Transaction [Line Items]
Consolidated total debt			17.0		17.0		$ 20.0
Consolidated VIEs \| Affiliated Entity \| Cunningham
Related Party Transaction [Line Items]
Consolidated total debt			8.0		8.0
Deferred financing costs			$ 0.4		$ 0.4