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Commitments and Contingencies - Schedule of Future Minimum Lease Payments under Long Term Operating Lease Agreements (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2020 $ 39,403
2021 26,658
2022 22,473
2023 21,822
Thereafter 148,508
Total lease payments $ 330,862