Leases (Maturities Of Lease Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating Leases, One year or less	$ 37,813
Operating Leases, One year to two years	37,202
Operating Leases, Two years to three years	35,520
Operating Leases, Three years to four years	33,569
Operating Leases, Fours years to five years	31,208
Operating Leases, Thereafter	115,601
Operating Leases, Total lease payments	290,913
Operating Leases, Less imputed interest	(98,741)
Operating leases, Total	192,172	$ 199,932
Finance Leases, One year or less	3,875
Finance Leases, One year to two years	3,605
Finance Leases, Two years to three years	3,605
Finance Leases, Three years to four years	2,040
Finance Leases, Fours years to five years	278
Finance Leases, Total lease payments	13,403
Finance Leases, Less imputed interest	(5,345)
Finance Leases, Total	$ 8,058