Annual report pursuant to Section 13 and 15(d)

Investment In Joint Ventures (Summary Of The Unconsolidated Joint Ventures' Financial Statements) (Details)

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Investment In Joint Ventures (Summary Of The Unconsolidated Joint Ventures' Financial Statements) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2011
Sovran HHF Storage Holdings LLC [Member]
Dec. 31, 2011
Sovran HHF Storage Holdings II LLC [Member]
Dec. 31, 2011
Iskalo Office Holdings, LLC [Member]
Schedule of Equity Method Investments [Line Items]          
Investment in storage facilities, net $ 1,290,518 $ 1,148,159 $ 162,668 $ 164,605  
Investment in office building         5,321
Other assets 7,373 4,848 3,936 3,436 580
Total Assets 1,344,735 1,185,541 166,604 168,041 5,901
Due to the Company     276 313  
Mortgages payable 4,423 78,954 71,239 88,300 6,752
Other liabilities     2,518 1,513 731
Total Liabilities 674,730 528,398 74,033 90,126 7,483
Unaffiliated partners' equity (deficiency)     74,057 66,228 (1,080)
Company equity (deficiency)     18,514 11,687 (502)
Total Liabilities and Partners' Equity (deficiency)     166,604 168,041 5,901
Total revenues     18,393 8,732 923
Depreciation and amortization of customer list     (3,667) (2,234) (221)
Other expenses     (12,995) (11,591) (869)
Net income (loss)     $ 1,731 $ (5,093) $ (167)