Condensed Consolidated Statement of Stockholders' Equity (Unaudited) (USD $)
In Thousands, except Share data
Total
Common Stock
Capital in Excess of Par Value
Accumulated Distributions in Excess of Earnings
Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2011 $ 1,471,713 $ 2,101 $ 1,882,971 $ (409,801) $ (3,558)
Beginning balance, shares at Dec. 31, 2011 210,151,692 210,151,692      
Issuance of common stock, shares   1,559,836      
Issuance of common stock 14,584 16 14,568    
Distributions to investors (32,664)     (32,664)  
Redemptions of common stock, shares   (1,547,460)      
Redemptions of common stock (14,354) (15) (14,339)    
Changes in redeemable common stock (102)   (102)    
Comprehensive income 10,018     9,803 215
Ending balance at Mar. 31, 2012 $ 1,449,195 $ 2,102 $ 1,883,098 $ (432,662) $ (3,343)
Ending balance, shares at Mar. 31, 2012 210,164,068 210,164,068