Goodwill, Other Intangible Assets and Intangible Liabilities - Intangible Assets (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-lived Intangible Assets [Roll Forward]
Balance as of December 31, 2017		$ 858,565	$ 1,025,134
Amortization (1)	[1]	(167,596)	(167,560)
Balance sheet reclassifications (2)	[2]	(226)	86
Foreign currency translation adjustment		(287)	905
Balance as of December 31, 2018		690,456	858,565	$ 1,025,134
Indefinite-lived Intangible Assets [Roll Forward]
Balance as of December 31, 2017		755,100	794,000
Impairment charge		(3,100)	0	(3,400)
Balance as of December 31, 2018		752,000	755,100	794,000
Goodwill [Roll Forward]
Gross balance as of December 31, 2016				3,608,930
Accumulated impairment losses as of December 31, 2016				(381,000)
Balance as of December 31, 2017		3,228,988	3,227,930
Foreign currency translation adjustment		(387)	1,058
Balance as of December 31, 2018		3,228,601	3,228,988	3,227,930
Total goodwill and other intangible assets as of December 31, 2018		4,671,057	4,842,653
Lease Contract Intangible Assets
Finite-lived Intangible Assets [Roll Forward]
Amortization (1)		(1,000)	(1,000)
FCC licenses
Indefinite-lived Intangible Assets [Roll Forward]
Balance as of December 31, 2017		740,300
Reclassification to assets held for sale (3)	[3]		(38,900)
Impairment charge		(3,100)	0	$ (3,400)
Balance as of December 31, 2018		$ 737,200	$ 740,300

[1] Amortization of intangible assets includes $1 million related to lease contract intangible assets and is recorded in cost of sales or SG&A expense, if applicable, in the Consolidated Statements of Operations.

[2] Represents net reclassifications which are reflected as a decrease (increase) to broadcast rights assets in the Consolidated Balance Sheets at December 31, 2017 and December 31, 2018, respectively.

[3] See Note 4 for additional information regarding FCC licenses reclassified to assets held for sale.