Other Accrued Expenses and Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Accrued Liabilities And Other Liabilities Current [Abstract]
Accrued restructuring	$ 487	$ 633
Accrued professional fees	4,138	1,731
Income taxes payable	187	282
Other accrued expenses	2,064	3,189
Total	$ 6,876	$ 5,835