Leases (Schedule of Weighted Average Assumptions Used To Compute ROU Assets and Lease Liabilities) (Details)	Sep. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Weighted average remaining lease term, Operating leases	6 years 10 months 24 days	8 years 7 months 6 days
Weighted average remaining lease term, Finance leases	11 years 1 month 6 days
Weighted average discount rate, Operating leases	4.10%	4.40%
Weighted average discount rate, Finance leases	3.70%