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Leases - Summary of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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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

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