Reconciliation of Difference Between Company's Income Tax Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Disclosure Reconciliation Of Difference Between Companies Income Tax Provision [Abstract]
Income tax expense (benefit) at statutory federal tax rate of 34%	$ (13,247)	$ (6,035)
Earn-out consideration		1,193
State taxes, net of federal benefit	11	(37)
Foreign taxes benefits provided for at rates other than U.S statutory rate	(1,349)	965
Change in valuation allowance	11,728	3,845
Goodwill impairment	2,646
Permanent differences	731	492
Other	(298)	(328)
Total provision for income taxes	$ 222	$ 95