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Note 20 - Pro Forma Financial Information (Detail) - Pro Forma Financial Information (USD $) In Millions, except Per Share data, unless otherwise specified | 9 Months Ended
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Sep. 30, 2012 | Sep. 30, 2011
Revenues from rental property | $ 699.5 | $ 672.4
Net income | 177.1 | 124.5
Net income available to the Company’s common shareholders | $ 101.9 | $ 70.7
Net income available to the Company’s common shareholders per common share: |  |
Basic (in Dollars per share) | $ 0.25 | $ 0.17
Diluted (in Dollars per share) | $ 0.25 | $ 0.17

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- Definition Pro forma basic earnings per share or earnings per unit, which is commonly presented in initial public offerings based on the terms of the offering. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph b -Subparagraph 7 -Article 11 + Details
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