Other Current Liabilities - Schedule of Other Current Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Accrued accounts payable	$ 21,922	$ 24,119
Accrued compensation liability	19,738	22,554
Accrued restructuring liability	3,670	4,987
Other current liabilities	31,605	24,094
Total other current liabilities	$ 76,935	$ 75,754