Accrued and Other Current Liabilities - Schedule of Accrued and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Payables And Accruals [Abstract]
Employee benefits	$ 8,438	$ 8,278
Professional fees and settlements	698	951
Other	1,422	1,633
Total	$ 10,558	$ 10,862