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Commitments and Contingencies (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]      
Rental expense $ 6,600 $ 6,900 $ 6,900
Minimum rental commitments      
2016 6,498    
2017 4,252    
2018 3,102    
2019 2,388    
2020 1,812    
Thereafter 2,232    
Minimum rental commitments under all non-cancelable leases 20,284    
Future minimum commitments      
2016 26,088    
2017 329    
Total commitments 26,417    
Purchase Obligations      
Future minimum commitments      
2016 25,638    
2017 66    
Total commitments 25,704    
Debt Interest Obligations      
Future minimum commitments      
2016 450    
2017 263    
Total commitments $ 713