v3.2.0.727
Accrued Liabilities - Accrued Liabilities (Detail) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Accrued Liabilities, Current [Abstract]    
Sales volume discounts payable $ 11,217 $ 16,011
Property taxes payable 2,249 3,510
Commissions payable 2,290 2,064
Accrued salaries 4,422 4,800
Other accrued liabilities 1,601 1,806
Total accrued liabilities $ 21,779 $ 28,191