Goodwill and Intangible Assets - Components of Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Intangible Assets
Gross carrying amount	$ 132,175	$ 130,201
Accumulated amortization	(118,867)	(116,268)
Net carrying amount	13,308	13,933
Customer relationships
Intangible Assets
Gross carrying amount	4,003	4,003
Accumulated amortization	(2,861)	(2,219)
Net carrying amount	1,142	1,784
Artist relationships
Intangible Assets
Gross carrying amount	12,216	12,223
Accumulated amortization	(11,250)	(11,007)
Net carrying amount	966	1,216
Media content
Intangible Assets
Gross carrying amount	91,489	91,489
Accumulated amortization	(91,319)	(91,215)
Net carrying amount	170	274
Technology
Intangible Assets
Gross carrying amount	6,204	6,204
Accumulated amortization	(6,110)	(5,682)
Net carrying amount	94	522
Non-compete agreements
Intangible Assets
Gross carrying amount	25	25
Accumulated amortization	(25)	(25)
Trade names
Intangible Assets
Gross carrying amount	18,238	16,257
Accumulated amortization	(7,302)	(6,120)
Net carrying amount	$ 10,936	$ 10,137