Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

The carrying amount of goodwill for each of the Company’s operating segments for the years ended December 31, 2018 and 2017 is as follows (in thousands):

	December 31,						December 31,						December 31,
	2016		Acquisition		Impairment		2017		Acquisition		Impairment		2018
Television	$	35,912		4,637		—	$	40,549		—		—	$	40,549
Radio		—		—		—		—		—		—		—
Digital (1)		14,169		16,011		—		30,180		3,563		—		33,743
Consolidated	$	50,081	$	20,648	$	—	$	70,729	$	3,563	$	—	$	74,292

(1)	Amount reported as of and for the year ended December 31, 2017 has been revised. See Note 3.

Composition of Company's Acquired Intangible Assets and Associated Accumulated Amortization

The composition of the Company’s acquired intangible assets and the associated accumulated amortization as of December 31, 2018 and 2017 is as follows (in thousands):

			2018						2017
	Weighted average remaining life in years		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Intangible assets subject to amortization:
Television network affiliation agreements		8	$	67,489	$	56,950	$	10,539	$	67,489	$	55,560	$	11,929
Customer base		5		10,045		5,044		5,001		9,146		3,839		5,307
Pre-sold advertising contracts and other		6		38,857		31,799		7,058		37,755		28,233		9,522
Total assets subject to amortization:			$	116,391	$	93,793	$	22,598	$	114,390	$	87,632	$	26,758
Intangible assets not subject to amortization:
FCC licenses and spectrum usage rights								254,598						251,163
Total intangible assets							$	277,196					$	277,921

Estimated Amortization Expense

Estimated amortization expense for each of the years ended December 31, 2019 through 2023 is as follows (in thousands):

Estimated Amortization Expense		Amount
2019	$		6,100
2020			4,100
2021			3,200
2022			2,500
2023			2,200