Earnings (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2015		Sep. 30, 2015		Jun. 30, 2015		Mar. 31, 2015	[1]	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014	[1]	Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Earnings Per Share [Abstract]
Net income (loss)	$ (8,413)		$ (21,184)		$ (27,781)		$ (24,469)		$ (20,838)		$ (22,178)		$ (21,029)		$ (7,770)		$ (81,847)		$ (71,815)		$ (58,990)
Weighted average common shares outstanding used to compute basic EPS																	36,165		35,947		35,553
Dilutive effect of stock based awards																	0		0		0
Weighted average common shares outstanding used to compute diluted EPS																	36,165		35,947		35,553
Basic EPS (in dollars per share)	$ (0.23)	[2]	$ (0.59)	[2]	$ (0.77)	[2]	$ (0.68)	[2]	$ (0.58)	[2]	$ (0.62)	[2]	$ (0.59)	[2]	$ (0.22)	[2]	$ (2.26)	[2]	$ (2.00)	[2]	$ (1.66)
Diluted EPS (in dollars per share)	$ (0.23)	[2]	$ (0.59)	[2]	$ (0.77)	[2]	$ (0.68)	[2]	$ (0.58)	[2]	$ (0.62)	[2]	$ (0.59)	[2]	$ (0.22)	[2]	$ (2.26)	[2]	$ (2.00)	[2]	$ (1.66)
Shares of common stock excluded from the calculation of diluted net income per share because of antidilutive effect																	5,700		6,300		4,600

[1] In the quarter ended March 31, 2014, certain accrued royalty liabilities of $10.6 million associated with our historical music business, which had originally been recorded based on statutory rates, were extinguished.

[2] The sum of the quarterly net income per share amounts will not necessarily equal net income per share for the year due to the use of weighted average quarterly shares and the effects of rounding.