Goodwill and Intangible Assets - Components of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Intangible Assets
Gross carrying amount	$ 123,143	$ 118,203
Accumulated amortization	(110,095)	(106,930)
Net	13,048	11,273
Customer relationships
Intangible Assets
Gross carrying amount	3,053	1,453
Accumulated amortization	(1,453)	(1,252)
Net	1,600	201
Artist relationships
Intangible Assets
Gross carrying amount	12,227	11,916
Accumulated amortization	(10,477)	(10,337)
Net	1,750	1,579
Media content
Intangible Assets
Gross carrying amount	91,666	91,616
Accumulated amortization	(89,499)	(87,604)
Net	2,167	4,012
Technology
Intangible Assets
Gross carrying amount	6,254	5,654
Accumulated amortization	(4,168)	(3,649)
Net	2,086	2,005
Non-compete agreements
Intangible Assets
Gross carrying amount	25	25
Accumulated amortization	(16)	(11)
Net	9	14
Trade names
Intangible Assets
Gross carrying amount	9,918	7,539
Accumulated amortization	(4,482)	(4,077)
Net	$ 5,436	$ 3,462