Investments In Direct Financing Lease (Summary Of Carrying Amounts Of Investment In Direct Financing Lease, Net) (Details) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
Capital Leases, Net Investment in Direct Financing Leases [Abstract]
Total minimum lease payments receivable		$ 434,756	$ 439,646
Estimated unguaranteed residual value of leased assets		162,669	162,669
Less deferred income	[1]	(405,705)	(411,435)
Investment in a direct financing lease, net		191,720	190,880
Capital Leases, Net Investment in Direct Financing Leases, Initial Direct Costs		$ 1,400	$ 1,400

[1] Deferred income is net of $1.4 million of initial direct costs at March 31, 2016 and December 31, 2015