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Leases - Schedule of Lease Assets and Related Lease Liabilities (Detail) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Leases [Abstract]    
Right-of-use assets - cost $ 2,007 $ 50,477
Accumulated amortization (1,146) (20,871)
Finance lease right-of-use assets, net 861 29,606
Right-of-use assets - cost 100,705 3,934
Accumulated amortization (3,614) (1,891)
Operating lease right-of-use assets, net 97,091 2,043
Total lease assets 97,952 31,649
Finance lease liabilities 23 12,330
Operating lease liabilities 10,718 1,188
Finance lease liabilities 6 25,391
Operating lease liabilities 94,196 853
Total lease liabilities $ 104,943 $ 39,762