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Leases - Schedule of Future Minimum Lease Payments (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Operating Lease Liabilities, Payments Due [Abstract]    
Remainder of 2019 $ 1,113  
2020 6,954  
2021 4,539  
2022 2,788  
2023 2,331  
2024 1,477  
Thereafter 2,798  
Total maturities of operating lease liabilities 22,000  
Less: imputed interest 1,898  
Total operating lease liabilities $ 20,102  
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]    
2019   $ 6,994
2020   6,177
2021   3,731
2022   2,142
2023   1,745
Thereafter   1,199
Total future contractual operating lease obligations   $ 21,988