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Leases - Supplemental Operating Lease Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Leases [Abstract]        
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability $ 1,657 $ 19,818 $ 15,665 $ 107,986
Operating Lease, Weighted Average Remaining Lease Term 11 years 2 months 12 days 11 years 6 months 11 years 2 months 12 days 11 years 6 months
Operating Lease, Weighted Average Discount Rate, Percent 4.00% 4.11% 4.00% 4.11%