v2.4.0.6

Accrued Liabilities (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Accrued liabilities |  |
Sales volume discounts payable | $ 13,940 | $ 16,220
Property taxes payable | 2,937 | 2,809
Commissions payable | 1,768 | 2,053
Accrued salaries | 4,235 | 3,548
Other accrued liabilities | 558 | 682
Total accrued liabilities | $ 23,438 | $ 25,312

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