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Leases - Schedule of Future Minimum Lease Payments (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Operating Lease Liabilities, Payments Due [Abstract]    
Remainder of 2019 $ 4,725  
2020 5,855  
2021 3,431  
2022 1,832  
2023 1,590  
2024 740  
Thereafter 459  
Total maturities of operating lease liabilities 18,632  
Less: Interest 1,319  
Total operating lease liabilities $ 17,313  
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