Accounts Receivable, Net (Schedule Of Accounts Receivable) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Insurance Settlements Receivable	$ 507	$ 1,967
Revenue Bond Receivable	16,021	22,164
Straight-line rent receivable	71,064	67,618
Allowance for doubtful accounts	(1,307)	(871)
Total	96,267	98,939
Tenants [Member]
Carrying amounts of accounts receivable	9,076	7,564
Non-Tenants [Member]
Carrying amounts of accounts receivable	$ 906	$ 497