Company Operations and Summary of Significant Accounting Policies - Other Current Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Liabilities Disclosure [Abstract]
Customer incentives	$ 3,766	$ 4,030
Accrued interest	227	202
Other	1,006	2,767
Total other current liabilities	$ 4,999	$ 6,999