Leases (Components Of Lease Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Lease revenue - operating leases	$ 231,198	$ 238,971
Interest income on financing leases	46,031	45,568
Other revenue	13,031	12,338
Interest income on financing receivable	3,753	1,976
Total lease revenue	$ 294,013	$ 298,853