INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Acquired Intangible Assets

The following table summarizes information relating to the Company's acquired intangible assets at December 31, 2014 and 2013: 

	December 31,						Estimated
	2014			2013			Useful Lives
Gross carrying amount of amortizable intangible assets
Customer relationships	$	45,828		$	46,258		7 to 18 years
Other amortizable intangibles	50,971			81,741			3 to 28 years
	96,799			127,999
Accumulated amortization
Customer relationships	(31,407		)	(28,099		)
Other amortizable intangibles	(28,611		)	(49,948		)
	(60,018		)	(78,047		)
Amortizable intangible assets, net of accumulated amortization	$	36,781		$	49,952
Amortizable intangible assets, net of accumulated amortization	$	36,781		$	49,952
Indefinite-lived cable television franchises	731,848			731,848
Trademarks and other indefinite-lived intangible assets	7,250			7,450
Goodwill	264,690			264,690
Total intangible assets, net	$	1,040,569		$	1,053,940

Amortization Expense

Aggregate amortization expense
Years ended December 31, 2014 and 2013 (excluding impairment charges of $5,831 and $37,458, respectively)	$	8,220	$	12,790
Estimated amortization expense
Year Ended December 31, 2015	$	7,013
Year Ended December 31, 2016	6,016
Year Ended December 31, 2017	5,559
Year Ended December 31, 2018	4,549
Year Ended December 31, 2019	3,907

Carrying Amount of Goodwill

The carrying amount of goodwill as of December 31, 2014 and 2013 is as follows:

	Cable		Lightpath		Other			Total
Gross goodwill as of December 31, 2014 and 2013	$	234,290	$	21,487	$	342,971		$	598,748
Accumulated impairment losses as of December 31, 2014 and 2013	—		—		(334,058		)	(334,058		)
	$	234,290	$	21,487	$	8,913		$	264,690