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Commitments and Contingencies - Schedule of Maturities of Operating Lease Liabilities (Details)
$ in Thousands
Mar. 31, 2019
USD ($)
Operating Lease Liabilities Payments Due [Abstract]  
2019 (remainder of year) $ 4,107
2020 2,092
2021 1,160
2022 432
2023 427
Thereafter 1,698
Total lease payments 9,916
Less: imputed interest (874)
Operating lease liabilities $ 9,042