Leases (Schedule of Certain Lease Terms) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Weighted average discount rate	3.36%	3.34%
Weighted average remaining lease term	12 years 10 months 24 days	13 years 4 months 24 days
Minimum [Member]
Range of lease expiration dates	7 months	7 months
Range of lease renewal options	3 years	1 year
Maximum [Member]
Range of lease expiration dates	19 years	20 years
Range of lease renewal options	5 years	5 years