Investments In Direct Financing Leases (Summary Of Carrying Amounts Of Investment In Direct Financing Lease, Net) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012	Apr. 03, 2014
Capital Leases, Net Investment in Direct Financing Leases [Abstract]
Proceeds from Sale of Lease Receivables	$ 46,092,000		$ 0		$ 4,494,000
Total minimum lease payments receivable	487,275,000		633,384,000
Estimated unguaranteed residual value of leased assets	172,880,000		215,207,000
Less deferred income	(460,823,000)	[1]	(606,379,000)	[1]
Investment in a direct financing lease, net	199,332,000		242,212,000			45,900,000
Initial direct costs	$ 1,500,000		$ 1,700,000

[1] (1) Deferred income is net of $1.5 million and $1.7 million of initial direct costs at December 31, 2014 and 2013, respectively.