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Leases - Lease Assets and Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Leases [Abstract]    
Operating lease assets $ 224,961 $ 156,645
Current operating lease liabilities 32,924 42,716
Noncurrent operating lease liabilities 232,390 161,677
Total lease liabilities $ 265,314 $ 204,393
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Accounts payable, accrued expenses and other Accounts payable, accrued expenses and other