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Commitments and Contingencies Commitments and Contingencies (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]    
2013 $ 4,601  
2014 3,463  
2015 2,623  
2016 2,404  
2017 1,513  
Thereafter 3,726  
Total future minimum lease payments 18,330  
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]    
2013 466  
2014 504  
2015 505  
2016 496  
2017 421  
Thereafter 4,243  
Total future minimum lease payments 6,635  
Less: amount representing interest (rates ranging from 7% to 11.5%) (2,650)  
Less: current portion of obligations under capital leases (199)  
Long-term obligations under capital leases $ 3,786 $ 4,013
Capital Lease Obligations | Minimum
    
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]    
Future Minimum Lease Payments Interest Rate 7.00%  
Capital Lease Obligations | Maximum
    
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]    
Future Minimum Lease Payments Interest Rate 11.50%