Leases - Supplemental Operating Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 12,327	$ 7,632	$ 14,211	$ 88,765
Operating Lease, Weighted Average Remaining Lease Term	11 years 2 months 12 days	11 years 9 months 18 days	11 years 2 months 12 days	11 years 9 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	4.02%	4.25%	4.02%	4.25%