Leases (Schedule Of Supplemental Balance Sheet Information Related To Leases) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 27,523	$ 27,007
Accumulated amortization	(7,516)	(5,013)
Operating lease right-of-use assets, net	20,007	21,994
Current maturities of operating leases	5,522	5,487
Non-current maturities of operating lease	15,797	17,918
Total operating lease liabilities	21,319	23,405
Finance leases, Property and equipment, at cost	7,078	7,161
Finance leases, Accumulated amortization	(1,542)	(1,279)
Finance leases, property and equipment, net	5,536	5,882
Current maturities of finance leases	581	597
Non-current maturities of finance leases	5,111	5,415
Total finance lease liabilities	$ 5,692	$ 6,012
Weighted average remaining lease term (in years): Operating leases	5 years 3 months 18 days	5 years 6 months
Weighted average remaining lease term (in years): Finance leases	10 years 2 months 12 days	10 years 7 months 6 days
Weighted average discount rate: Operating leases	5.30%	5.40%
Weighted average discount rate: Finance leases	2.00%	2.00%