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Commitments and Contingencies - Schedule of Future Minimum Rental Payments Under Operating Leases (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Leases [Abstract]  
2019 $ 13,425
2020 10,801
2021 10,602
2022 10,887
2023 9,535
Thereafter 12,693
Total $ 67,943