Intangible Assets - Components (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 122,353	$ 165,296
Accumulated amortization	(101,021)	(124,761)
Net	21,332	40,535
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	1,628	9,569
Accumulated amortization	(1,107)	(8,730)
Net	521	839
Artist Relationships
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	11,719	11,719
Accumulated amortization	(8,340)	(4,796)
Net	3,379	6,923
Media content
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	95,785	103,415
Accumulated amortization	(85,018)	(80,249)
Net	$ 10,767	23,166
Intangibles, useful life	5 years
Technology
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 5,854	27,770
Accumulated amortization	(2,842)	(23,293)
Net	3,012	4,477
Non-compete agreements
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	217	253
Accumulated amortization	(160)	(146)
Net	57	107
Trade Names
Finite Lived Intangible Assets [Line Items]
Gross carrying amount	7,150	10,478
Accumulated amortization	(3,554)	(5,467)
Net	$ 3,596	5,011
Content Publisher Relationships
Finite Lived Intangible Assets [Line Items]
Gross carrying amount		2,092
Accumulated amortization		(2,080)
Net		$ 12
Weighted Average | Customer Relationships
Finite Lived Intangible Assets [Line Items]
Intangibles, useful life	3 years 9 months 18 days	4 years 1 month 6 days
Weighted Average | Artist Relationships
Finite Lived Intangible Assets [Line Items]
Intangibles, useful life	4 years 1 month 6 days	4 years 1 month 6 days
Weighted Average | Media content
Finite Lived Intangible Assets [Line Items]
Intangibles, useful life	5 years 1 month 6 days	5 years
Weighted Average | Technology
Finite Lived Intangible Assets [Line Items]
Intangibles, useful life	4 years 8 months 12 days	6 years 2 months 12 days
Weighted Average | Non-compete agreements
Finite Lived Intangible Assets [Line Items]
Intangibles, useful life	3 years	3 years 2 months 12 days
Weighted Average | Trade Names
Finite Lived Intangible Assets [Line Items]
Intangibles, useful life	10 years 6 months	10 years 3 months 18 days
Weighted Average | Content Publisher Relationships
Finite Lived Intangible Assets [Line Items]
Intangibles, useful life		5 years