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Other Current Liabilities (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Summary of other current liabilities |  |
Accrued payroll and benefits | $ 50,637 | $ 48,654
Other accrued compensation and retirement benefits | 8,977 | 6,253
Income taxes payable | 2,656 | 3,543
Accrued rebates | 11,330 | 10,839
Other accrued expenses | 39,889 | 28,309
Total | $ 113,489 | $ 97,598

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