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Commitments and Contingencies - Schedule of Non-Cancellable Purchase Commitments (Details)
$ in Thousands
Jun. 30, 2019
USD ($)
Unrecorded Unconditional Purchase Obligation, Fiscal Year Maturity [Abstract]  
Remainder of 2019 $ 6,611
2020 9,269
2021 4,602
2022 4,991
2023 5,071
Thereafter 2,117
Total purchase commitments $ 32,661