Leases Leases Other Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases term and discount rate
Operating Lease, Weighted Average Remaining Lease Term	8 years 8 months 12 days	9 years
Finance Lease, Weighted Average Remaining Lease Term	10 years 6 months	10 years 2 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent	3.80%	4.10%
Leases Other Information [Abstract]
Sale and Leaseback Transaction, Gain (Loss), Net	$ 34,301	$ 20,833
Cash paid for amounts included in the measurement of lease liabilities:
Operating Lease, Payments	661,318	637,655
Finance Lease, Interest Payment on Liability	20,981	22,257
Finance Lease, Principal Payments	24,780	25,692
Net Operating Lease Assets Obtained In Exchange For Lease Liabilities	$ 401,559	$ 432,074
Finance Lease
Leases term and discount rate
Finance lease, weighted average discount rate, percent	5.10%	5.40%