Leases (Schedule of Information Regarding Operating Leases) (Details)	Sep. 30, 2020	Dec. 31, 2019
Leases [Line Items]
Weighted-average discount rate	3.54%	3.78%
Range of lease renewal options		20 years
Weighted-average remaining lease term	27 years 9 months 18 days	31 years 10 months 24 days
Minimum [Member]
Leases [Line Items]
Range of lease expiration dates	3 years	4 years 6 months
Range of lease renewal options	5 years
Maximum [Member]
Leases [Line Items]
Range of lease expiration dates	15 years 6 months	16 years
Range of lease renewal options	20 years