Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

Intangible assets consisted of the following (in thousands):

	December 31, 2015
	Gross carrying		Accumulated		Net carrying		Weighted average
	amount		amortization		amount		useful life (years)
Customer relationships	$	1,628	$	(1,107)	$	521	3.8
Artist relationships		11,719		(8,340)		3,379	4.1
Media content		95,785		(85,018)		10,767	5.1
Technology		5,854		(2,842)		3,012	4.7
Non-compete agreements		217		(160)		57	3.0
Trade names		7,150		(3,554)		3,596	10.5
	$	122,353	$	(101,021)	$	21,332

	December 31, 2014
	Gross carrying		Accumulated		Net carrying		Weighted average
	amount		amortization		amount		useful life (years)
Customer relationships	$	9,569	$	(8,730)	$	839	4.1
Artist relationships		11,719		(4,796)		6,923	4.1
Media content		103,415		(80,249)		23,166	5.0
Technology		27,770		(23,293)		4,477	6.2
Non-compete agreements		253		(146)		107	3.2
Trade names		10,478		(5,467)		5,011	10.3
Content publisher relationships		2,092		(2,080)		12	5.0
	$	165,296	$	(124,761)	$	40,535

Amortization Expense by Classification

Amortization expense by classification is shown below (in thousands):

	Year ended December 31,
	2015		2014		2013
Service costs	$	12,680	$	28,523	$	28,974
Sales and marketing		3,862		4,733		1,987
Product development		1,440		4,212		4,884
General and administrative		724		847		674
Discontinued operations		—		4,244		7,890
Total amortization	$	18,706	$	42,559	$	44,409

Estimated future amortization expense

Based upon the current amount of intangible assets subject to amortization, the estimated amortization expense for the next five years as of December 31, 2015 is as follows (in thousands):

	Estimated
	Amortization
Year ending December 31,
2016	$	9,225
2017	$	5,827
2018	$	2,967
2019	$	1,006
2020	$	575
Thereafter	$	1,732