Accrued Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Accrued compensation	$ 13,521	$ 25,352
Accrued income tax and sales tax	1,513	1,580
Customer deposits	1,758	1,139
Interest payable	58	9,439
Provision for forward loss reserves	11,925	4,734
Other	7,683	9,822
Total	$ 36,458	$ 52,066