Leases (Schedule Of Supplemental Balance Sheet Information Related To Leases) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 08, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease right-of-use assets	$ 27,007
Accumulated amortization	(5,013)
Operating lease right-of-use assets, net	21,994
Current maturities of operating leases	5,487
Non-current maturities of operating lease	17,918
Total operating lease liabilities	23,405
Finance leases, Property and equipment, at cost	7,161			$ 7,674
Finance leases, Accumulated amortization	(1,279)			882
Finance leases, property and equipment, net	5,882			6,792
Current maturities of finance leases	597			729
Non-current maturities of finance leases	5,415			$ 5,937
Total finance lease liabilities	$ 6,012
Weighted average remaining lease term (in years): Operating leases	5 years 6 months		6 years
Weighted average remaining lease term (in years): Finance leases	10 years 7 months 6 days
Weighted average discount rate: Operating leases	5.40%	5.83%	5.50%
Weighted average discount rate: Finance leases	2.00%