Leases (Information Of Lease Right Of Use Asset And Lease Liability) (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Leases [Abstract]
Cash paid for operating lease liabilities	$ 1,460	$ 4,183
Right-of-use asset obtained in exchange for new operating lease obligations	$ 1,275	$ 2,785
Weighted-average remaining lease term	4 years 18 days	4 years 18 days
Weighted-average discount rate	6.38%	6.38%