CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Net revenue (A)	[1]	$ 31,051	$ 30,823	$ 89,015	$ 95,374
Cost of revenue (B)	[2]	16,740	18,090	47,610	54,469
Gross profit		14,311	12,733	41,405	40,905
Operating expenses:
Research and development		6,699	10,501	23,185	34,681
Sales and marketing		7,183	11,938	24,157	38,822
General and administrative		7,086	7,021	21,380	21,312
Restructuring and other charges		499	3,114	1,297	5,563
Lease exit and related charges		1,233	2,121	2,191	2,208
Total operating expenses		22,700	34,695	72,210	102,586
Operating income (loss)		(8,389)	(21,962)	(30,805)	(61,681)
Other income (expenses):
Interest income, net		119	147	316	597
Gain (loss) on investments, net		6,021	(615)	5,978	(222)
Equity in net loss of Rhapsody investment		(233)	(735)	(629)	(13,831)
Other income (expense), net		(243)	297	(515)	628
Total other income (expenses), net		5,664	(906)	5,150	(12,828)
Income (loss) before income taxes		(2,725)	(22,868)	(25,655)	(74,509)
Income tax expense (benefit)		331	(1,684)	919	(1,075)
Net income (loss)		$ (3,056)	$ (21,184)	$ (26,574)	$ (73,434)
Basic net income (loss) per share (USD per share)		$ (0.08)	$ (0.59)	$ (0.72)	$ (2.03)
Diluted net income (loss) per share (USD per share)		$ (0.08)	$ (0.59)	$ (0.72)	$ (2.03)
Shares used to compute basic net income (loss) per share		36,805	36,191	36,693	36,134
Shares used to compute diluted net income (loss) per share		36,805	36,191	36,693	36,134
Comprehensive income (loss):
Unrealized investment holding gains (losses), net of reclassification adjustments		$ 72	$ (596)	$ 239	$ (881)
Foreign currency translation adjustments, net of reclassification adjustments		428	(1,144)	483	(3,141)
Total other comprehensive income (loss)		500	(1,740)	722	(4,022)
Net income (loss)		(3,056)	(21,184)	(26,574)	(73,434)
Comprehensive income (loss)		$ (2,556)	$ (22,924)	$ (25,852)	$ (77,456)

[1] Quarters Ended September 30,Components of Revenue2016 2015License Fees7,850 7,049Service Revenue23,201 23,774Net Revenue31,051 30,823 Nine Months Ended September 30,Components of Cost of Revenue2016 2015License Fees$20,305 $21,259Service Revenue68,710 74,115Net Revenue$89,015 $95,374

[2] Quarters Ended September 30,Components of Cost of Revenue2016 2015License Fees1,755 1,877Service Revenue14,985 16,213Net Revenue Costs16,740 18,090 Nine Months Ended September 30,Components of Cost of Revenue2016 2015License Fees$4,458 $5,048Service Revenue43,152 49,421Net Revenue Costs$47,610 $54,469