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Accrued Liabilities (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Other current liabilities |  |
Payroll and incentive compensation | $ 10,647 | $ 10,695
Union dues and benefits | 7,122 | 6,210
Profit sharing and thrift plan | 2,862 | 4,679
Taxes, other than income taxes | 4,286 | 5,771
Legal settlements | 2,869 |
Other | 4,925 | 4,885
Other current liabilities, total | $ 32,711 | $ 32,240

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