Intangible Assets

6 Months Ended

Jun. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

4. Intangible Assets

Intangible assets consisted of the following (in thousands):


	June 30, 2016
	Gross carrying		Accumulated		Net carrying
	amount		amortization		amount
Customer relationships	$	1,628	$	(1,267)	$	361
Artist relationships		11,719		(10,077)		1,642
Media content		93,613		(86,240)		7,373
Technology		5,854		(3,356)		2,498
Non-compete agreements		217		(197)		20
Trade names		7,140		(3,840)		3,300
	$	120,171	$	(104,977)	$	15,194


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

Identifiable finite-lived intangible assets are amortized on a straight-line basis over their estimated useful lives commencing on the date that the asset is available for its intended use.

Total amortization expense for the periods shown below includes (in thousands):


	Three months ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Service costs	$	1,786	$	5,879	$	3,486	$	8,714
Sales and marketing		948		949		1,897		1,965
Product development		246		246		493		947
General and administrative		134		151		270		310
Total amortization	$	3,114	$	7,225	$	6,146	$	11,936

Service costs include accelerated amortization charges of $0.4 million and $3.3 million for the three months ended June 30, 2016 and 2015, respectively, and $0.5 million and $3.3 million for the six months ended June 30, 2016 and 2015, respectively, as a result of removing certain assets from service.