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Leases - Summary of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Operating leases    
Operating lease right-of-use assets, gross $ 214,548 $ 226,884
Accumulated amortization (33,995) (23,353)
Operating lease right-of-use assets, net 180,553 203,531
Current portion of operating leases 35,725 33,883
Non-current operating leases 160,248 184,301
Total operating lease liabilities 195,973 218,184
Finance leases    
Property and equipment, gross 16,404 19,920
Accumulated depreciation (3,807) (3,787)
Property and equipment, net 12,597 16,133
Current portion of finance leases $ 3,507 $ 3,662
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
Non-current finance leases $ 5,675 $ 8,801
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] us-gaap:LongTermDebtAndCapitalLeaseObligations us-gaap:LongTermDebtAndCapitalLeaseObligations
Total finance lease liabilities $ 9,182 $ 12,463