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Earnings Per Share (Tables) | 12 Months Ended
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May 31, 2013
Reconciliation of Numerator and Denominator of Basic and Diluted Earnings Per Share Calculated using Two-Class Method | The following table sets forth the reconciliation of the numerator and denominator of basic and diluted earnings per share, as calculated using the two-class method, for the years ended May 31, 2013, 2012 and 2011:
Year Ended May 31, |  | 2013 |  |  | 2012 |  |  | 2011 |
(In thousands, except per share amounts) |  |  |  |  |  |  |  |  |  |  |  |
Numerator for earnings per share: |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to RPM International Inc. stockholders |  | $ | 98,603 |  |  | $ | 215,936 |  |  | $ | 189,058 |
Less: Allocation of earnings and dividends to participating securities |  |  | (1,999 | ) |  |  | (4,024 | ) |  |  | (3,067 | )
Net income available to common shareholders—basic |  |  | 96,604 |  |  |  | 211,912 |  |  |  | 185,991 |
Add: Undistributed earnings reallocated to unvested shareholders |  |  | (3 | ) |  |  | 9 |  |  |  | 7 |
Net income available to common shareholders—diluted |  | $ | 96,601 |  |  | $ | 211,921 |  |  | $ | 185,998 |
Denominator for basic and diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average common shares |  |  | 128,956 |  |  |  | 128,130 |  |  |  | 127,403 |
Average diluted options |  |  | 845 |  |  |  | 587 |  |  |  | 663 |
Total shares for diluted earnings per share |  |  | 129,801 |  |  |  | 128,717 |  |  |  | 128,066 |
Earnings Per Share of Common Stock Attributable to RPM International Inc. Stockholders: |  |  |  |  |  |  |  |  |  |  |  |
Basic Earnings Per Share of Common Stock |  | $ | 0.75 |  |  | $ | 1.65 |  |  | $ | 1.46 |
Diluted Earnings Per Share of Common Stock |  | $ | 0.74 |  |  | $ | 1.65 |  |  | $ | 1.45 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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