Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The carrying amount of goodwill, by operating segment is as follows:

(In thousands)	National Networks			International and Other			Total
December 31, 2017	$	239,759		$	455,399		$	695,158
Additions	—			24,214			24,214
Amortization of "second component" goodwill	(984		)	—			(984		)
Foreign currency translation	—			(13,006		)	(13,006		)
September 30, 2018	$	238,775		$	466,607		$	705,382

Schedule of Finite-Lived Intangible Assets

The following tables summarize information relating to the Company's identifiable intangible assets:

(In thousands)	September 30, 2018
	Gross		Accumulated Amortization			Net		Estimated Useful Lives
Amortizable intangible assets:
Affiliate and customer relationships	$	543,570	$	(188,571	)	$	354,999	6 to 25 years
Advertiser relationships	46,282		(16,561		)	29,721		11 years
Trade names	73,973		(16,344		)	57,629		15 to 20 years
Other amortizable intangible assets	13,792		(6,284		)	7,508		2 to 15 years
Total amortizable intangible assets	677,617		(227,760		)	449,857
Indefinite-lived intangible assets:
Trademarks	19,900		—			19,900
Total intangible assets	$	697,517	$	(227,760	)	$	469,757
(In thousands)	December 31, 2017
	Gross		Accumulated Amortization			Net
Amortizable intangible assets:
Affiliate and customer relationships	$	527,713	$	(167,911	)	$	359,802
Advertiser relationships	46,282		(13,405		)	32,877
Trade names	53,761		(14,420		)	39,341
Other amortizable intangible assets	11,401		(6,079		)	5,322
Total amortizable intangible assets	639,157		(201,815		)	437,342
Indefinite-lived intangible assets:
Trademarks	19,900		—			19,900
Total intangible assets	$	659,057	$	(201,815	)	$	457,242

Schedule of Indefinite-Lived Intangible Assets

The following tables summarize information relating to the Company's identifiable intangible assets:

(In thousands)	September 30, 2018
	Gross		Accumulated Amortization			Net		Estimated Useful Lives
Amortizable intangible assets:
Affiliate and customer relationships	$	543,570	$	(188,571	)	$	354,999	6 to 25 years
Advertiser relationships	46,282		(16,561		)	29,721		11 years
Trade names	73,973		(16,344		)	57,629		15 to 20 years
Other amortizable intangible assets	13,792		(6,284		)	7,508		2 to 15 years
Total amortizable intangible assets	677,617		(227,760		)	449,857
Indefinite-lived intangible assets:
Trademarks	19,900		—			19,900
Total intangible assets	$	697,517	$	(227,760	)	$	469,757
(In thousands)	December 31, 2017
	Gross		Accumulated Amortization			Net
Amortizable intangible assets:
Affiliate and customer relationships	$	527,713	$	(167,911	)	$	359,802
Advertiser relationships	46,282		(13,405		)	32,877
Trade names	53,761		(14,420		)	39,341
Other amortizable intangible assets	11,401		(6,079		)	5,322
Total amortizable intangible assets	639,157		(201,815		)	437,342
Indefinite-lived intangible assets:
Trademarks	19,900		—			19,900
Total intangible assets	$	659,057	$	(201,815	)	$	457,242

Schedule of Estimated Amortization Expense

Estimated aggregate amortization expense for intangible assets subject to amortization for each of the following five years is:

(In thousands)
Years Ending December 31,
2018	$	38,556
2019	39,389
2020	39,386
2021	39,028
2022	39,025