Fair Value Disclosures (Assets And Liabilities Measured At Fair Value On A Non-Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011
Rental properties, net	$ 134,186
Long-term debt	4,109
Quoted Prices In Active Markets For Identical Assets (Level I) [Member]
Rental properties, net	0
Long-term debt	0
Significant Other Observable Inputs (Level 2) [Member]
Rental properties, net	0
Long-term debt	4,109
Significant Unobservable Inputs (Level 3) [Member]
Rental properties, net	134,186
Long-term debt	$ 0