Leases (Schedule of lease balances, weighted average lease terms and discount rates) (Details) $ in Thousands	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating Lease ROU Assets	$ 72,632
Current: Operating Lease Liabilities	19,479
Long-Term: Operating Lease Liabilities	55,413
Total Operating Lease Liabilities	$ 74,892
Weighted average remaining lease term (in years)	5 years 7 days
Weighted average discount rate	6.79%