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Accrued Expenses and Other Liabilities Accrued Expenses and Other Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Accounts Payable and Accrued Liabilities, Current [Abstract]    
Accrued compensation $ 6,289 $ 9,783
Accrued stock based compensation 6,980 7,121
Accrued and withheld taxes, other than income taxes 1,199 1,440
Reserve for unrecognized tax benefits 738 879
Accrued health benefits 700 810
Financing lease obligation 876 809
Accrued profit sharing 774 582
Accrued severance 697 311
Other 7,795 9,126
Accrued Liabilities, Current $ 26,048 $ 30,861