Leases (Future Minimum Lease Payment And Future Minimum Income Receivable Under Non-Cancelable Operating Leases) (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Leases [Abstract]
Future Minimum Operating Leases Payments, 2019	$ 33,948
Future Minimum Operating Leases Payments, 2020	29,535
Future Minimum Operating Leases Payments, 2021	23,898
Future Minimum Operating Leases Payments, 2022	18,250
Future Minimum Operating Leases Payments, 2023	14,100
Future Minimum Operating Leases Payments, Thereafter	37,963
Total Future Operating Lease Payments	157,694
Future Minimum Sublease Income, 2019	2,851
Future Minimum Sublease Income, 2020	2,711
Future Minimum Sublease Income, 2021	2,333
Future Minimum Sublease Income, 2022	1,718
Future Minimum Sublease Income, 2023	1,337
Future Minimum Sublease Income, Thereafter	3,477
Total Future Minimum Sublease Income	$ 14,427