Rhapsody Joint Venture (Summarized Financial Information for Rhapsody) (Detail) - Rhapsody America LLC - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Gross Profit (Loss)
Net revenue	$ 201,987	$ 173,484	$ 140,596
Gross profit	32,761	32,145	34,141
Net loss	(35,479)	(21,336)	$ (14,663)
Assets and Liabilities
Current assets	53,274	47,021
Non-current assets	20,520	20,616
Current liabilities	92,794	65,458
Non-current liabilities	$ 20,295	$ 16,487