Leases (Maturity Of Leases As Lessee) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Operating leases, 2021	$ 17,233
Operating leases, 2022	34,669
Operating leases, 2023	34,017
Operating leases, 2024	32,157
Operating leases, 2025	29,949
Operating leases, Thereafter	169,450
Operating leases, Total lease payments	317,475
Operating leases, Less imputed interest	(73,296)
Total operating lease liabilities	244,179	$ 235,505
Finance leases, 2021	27
Finance leases, 2022	43
Finance leases, 2023	28
Finance leases, Total lease payments	98
Finance leases, Less imputed interest	(5)
Total finance lease liabilities	$ 93	$ 118