Leases (Supplemental Balance Sheet Information Related To Leases) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Leases [Abstract]
ROU assets	$ 38,909	$ 40,156
Current lease liabilities	10,255	11,392
Long-term lease liabilities	31,869	31,900
Total lease liabilities	$ 42,124	$ 43,292
Weighted average remaining lease term (in years	5 years	5 years
Weighted-average discount rate	6.77%	5.96%