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Note 23 - Supplemental Financial Information
12 Months Ended
Dec. 31, 2012
Quarterly Financial Information [Text Block]
23.  Supplemental Financial Information:

The following represents the results of income, expressed in thousands except per share amounts, for each quarter during the years 2012 and 2011:

   
2012 (Unaudited)
 
   
Mar. 31
   
June 30
   
Sept. 30
   
Dec. 31
 
Revenues from rental property(1)
  $ 214,851     $ 220,670     $ 220,188     $ 229,073  
Net income attributable to the Company
  $ 53,638     $ 69,112     $ 54,941     $ 88,382  
                                 
Net income per common share:
                               
Basic
  $ 0.09     $ 0.12     $ 0.07     $ 0.14  
Diluted
  $ 0.09     $ 0.12     $ 0.07     $ 0.14  

   
2011 (Unaudited)
 
   
Mar. 31
   
June 30
   
Sept. 30
   
Dec. 31
 
Revenues from rental property(1)
  $ 206,156     $ 206,034     $ 201,082     $ 212,465  
Net income attributable to the Company
  $ 28,963     $ 38,709     $ 54,981     $ 46,398  
                                 
Net income per common share:
                               
Basic
  $ 0.03     $ 0.06     $ 0.10     $ 0.08  
Diluted
  $ 0.03     $ 0.06     $ 0.10     $ 0.08  

(1)  All periods have been adjusted to reflect the impact of operating properties sold during 2012 and 2011 and properties classified as held-for-sale as of December 31, 2012, which are reflected in the caption Discontinued operations on the accompanying Consolidated Statements of Income.

Accounts and notes receivable in the accompanying Consolidated Balance Sheets are net of estimated unrecoverable amounts of $16.4 million and $18.1 million of billed accounts receivable at December 31, 2012 and 2011, respectively. Additionally, Accounts and notes receivable in the accompanying Consolidated Balance Sheets are net of estimated unrecoverable amounts of $22.8 million and $25.4 million of straight-line rent receivable at December 31, 2012 and 2011, respectively.