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Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified | Jun. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Real Estate and Other Assets Held for Sale, Net of Accumulated Depreciation and Amortization | $ 21,079 | $ 39,413
Leasing Intangibles, Accumulated Amortization | 0 | 415
Preferred Stock, par value | $ 0.01 | $ 0.01
Preferred Stock, shares authorized | 10,000,000 | 10,000,000
Common Stock, par value | $ 0.01 | $ 0.01
Common Stock, shares authorized | 150,000,000 | 150,000,000
Common Stock, shares issued | 93,236,367 | 91,131,516
Common Stock, shares outstanding | 88,912,253 | 86,807,402
Treasury Shares at cost, shares | 4,324,114 | 4,324,114
Series F Preferred Stock [Member] |  |
Preferred Stock, shares issued | 500 | 500
Preferred Stock, shares outstanding | 500 | 500
Preferred Stock, liquidation preference per share | $ 100,000 | $ 100,000
Preferred stock liquidation preference value | (50,000) | (50,000)
Series G Preferred Stock [Member] |  |
Preferred Stock, shares issued | 250 | 250
Preferred Stock, shares outstanding | 250 | 250
Preferred Stock, liquidation preference per share | $ 100,000 | $ 100,000
Preferred stock liquidation preference value | (25,000) | (25,000)
Series J Preferred Stock [Member] |  |
Preferred Stock, shares issued | 600 | 600
Preferred Stock, shares outstanding | 600 | 600
Preferred Stock, liquidation preference per share | $ 250,000 | $ 250,000
Preferred stock liquidation preference value | (150,000) | (150,000)
Series K Preferred Stock [Member] |  |
Preferred Stock, shares issued | 200 | 200
Preferred Stock, shares outstanding | 200 | 200
Preferred Stock, liquidation preference per share | $ 250,000 | $ 250,000
Preferred stock liquidation preference value | $ (50,000) | $ (50,000)

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