Leases Lease Term and Discount Rate (Details)	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating Lease, Weighted Average Remaining Lease Term	26 years	24 years
Finance Lease, Weighted Average Remaining Lease Term	28 years	29 years
Operating Lease, Weighted Average Discount Rate, Percent	3.60%	3.50%
Finance Lease, Weighted Average Discount Rate, Percent	7.30%	7.30%