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Commitments and Contingencies - Operating Lease Commitments (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Schedule of Future Minimum Rental Commitments      
Operating leases, rent expense $ 2,660 $ 1,190 $ 1,403
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]      
2015 2,203    
2016 2,049    
2017 1,675    
2018 1,487    
2019 1,349    
Thereafter 8,655    
Operating leases, future minimum payments due 17,418    
Third Parties      
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]      
2015 1,913    
2016 1,800    
2017 1,537    
2018 1,487    
2019 1,349    
Thereafter 8,655    
Operating leases, future minimum payments due 16,741    
Related Partnership      
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]      
2015 290    
2016 249    
2017 138    
2018 0    
2019 0    
Thereafter 0    
Operating leases, future minimum payments due $ 677    
Ownership percentage in partnership 50.00%