Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 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
Amortization of "second component" goodwill	(328		)	—		(328		)
Foreign currency translation	—			12,824		12,824
March 31, 2018	$	239,431		$	468,223	$	707,654

Schedule of Finite-Lived Intangible Assets

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

(In thousands)	March 31, 2018
	Gross		Accumulated Amortization			Net		Estimated Useful Lives
Amortizable intangible assets:
Affiliate and customer relationships	$	532,555	$	(177,019	)	$	355,536	6 to 25 years
Advertiser relationships	46,282		(14,457		)	31,825		11 years
Trade names	55,201		(15,422		)	39,779		20 years
Other amortizable intangible assets	11,704		(6,349		)	5,355		2 to 15 years
Total amortizable intangible assets	645,742		(213,247		)	432,495
Indefinite-lived intangible assets:
Trademarks	19,900		—			19,900
Total intangible assets	$	665,642	$	(213,247	)	$	452,395
(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)	March 31, 2018
	Gross		Accumulated Amortization			Net		Estimated Useful Lives
Amortizable intangible assets:
Affiliate and customer relationships	$	532,555	$	(177,019	)	$	355,536	6 to 25 years
Advertiser relationships	46,282		(14,457		)	31,825		11 years
Trade names	55,201		(15,422		)	39,779		20 years
Other amortizable intangible assets	11,704		(6,349		)	5,355		2 to 15 years
Total amortizable intangible assets	645,742		(213,247		)	432,495
Indefinite-lived intangible assets:
Trademarks	19,900		—			19,900
Total intangible assets	$	665,642	$	(213,247	)	$	452,395
(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	$	36,491
2019	36,488
2020	36,102
2021	36,099
2022	36,087