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Operating Leases (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Payments [Abstract]      
2016 $ 1,943    
2017 1,535    
2018 1,146    
2019 663    
2020 398    
Thereafter 3,341    
Total 9,026    
Receipts [Abstract]      
2016 584    
2017 256    
2018 111    
2019 27    
2020 21    
Thereafter 66    
Total 1,065    
Rental expense net of rental income under operating leases $ 1,300 $ 1,300 $ 1,200