Leases (Schedule Of Operating Lease Assets And Liabilities) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating lease ROU assets	$ 96,745
Operating lease liabilities, current portion	20,038
Operating lease liabilities, non-current portion	79,458
Total operating lease liabilities	$ 99,496
Weighted-average remaining lease term (years)	7 years 4 months 24 days
Weighted-average discount rate	2.86%