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Earnings per Share (Tables) | 9 Months Ended
--- | ---
Feb. 29, 2012
Earnings per Share |
Computation of basic and diluted earnings per share |
(In thousands except per share data) |  | Three Months Ended |  | Nine Months Ended
|  | February 29, |  | February 28, |  | February 29, |  | February 28,
|  | 2012 |  | 2011 |  | 2012 |  | 2011
Basic Earnings per Share |  |  |  |  |  |  |  |
Net income |  | $ | 76,035 |  | $ | 59,070 |  | $ | 219,023 |  | $ | 176,213
Less dividends to: |  |  |  |  |  |  |  |
Common shares |  | $ | --- |  | $ | --- |  | $ | 70,055 |  | $ | 71,197
Unvested shares |  | --- |  | --- |  | 765 |  | 615
Total dividends |  | $ | --- |  | $ | --- |  | $ | 70,820 |  | $ | 71,812
Undistributed net income |  | $ | 76,035 |  | $ | 59,070 |  | $ | 148,203 |  | $ | 104,401
Less: net income allocated to participating unvested securities |  | 556 |  | 316 |  | 1,096 |  | 564
Net income available to common shareholders |  | $ | 75,479 |  | $ | 58,754 |  | $ | 147,107 |  | $ | 103,837
Basic weighted average common shares outstanding |  | 129,735 |  | 145,303 |  | 130,261 |  | 147,686
Basic earnings per share: |  |  |  |  |  |  |  |
Common shares – distributed earnings |  | $ | 0.00 |  | $ | 0.00 |  | $ | 0.54 |  | $ | 0.49
Common shares – undistributed earnings |  | 0.58 |  | 0.41 |  | 1.13 |  | 0.70
Total common shares |  | $ | 0.58 |  | $ | 0.41 |  | $ | 1.67 |  | $ | 1.19
Unvested shares - distributed earnings |  | $ | 0.00 |  | $ | 0.00 |  | $ | 0.54 |  | $ | 0.49
Unvested shares - undistributed earnings |  | 0.58 |  | 0.41 |  | 1.13 |  | 0.70
Total unvested shares |  | $ | 0.58 |  | $ | 0.41 |  | $ | 1.67 |  | $ | 1.19
(In thousands except per share data) |  | Three Months Ended |  | Nine Months Ended
|  | February 29, |  | February 28, |  | February 29, |  | February 28,
|  | 2012 |  | 2011 |  | 2012 |  | 2011
Diluted Earnings per Share |  |  |  |  |  |  |  |
Net income |  | $ | 76,035 |  | $ | 59,070 |  | $ | 219,023 |  | $ | 176,213
Less dividends to: |  |  |  |  |  |  |  |
Common shares |  | $ | --- |  | $ | --- |  | $ | 70,055 |  | $ | 71,197
Unvested shares |  | --- |  | --- |  | 765 |  | 615
Total dividends |  | $ | --- |  | $ | --- |  | $ | 70,820 |  | $ | 71,812
Undistributed net income |  | $ | 76,035 |  | $ | 59,070 |  | $ | 148,203 |  | $ | 104,401
Less: net income allocated to participating unvested securities |  | 556 |  | 316 |  | 1,096 |  | 564
Net income available to common shareholders |  | $ | 75,479 |  | $ | 58,754 |  | $ | 147,107 |  | $ | 103,837
Basic weighted average common shares outstanding |  | 129,735 |  | 145,303 |  | 130,261 |  | 147,686
Effect of dilutive securities – employee stock options |  | 210 |  | --- |  | 60 |  | ---
Diluted weighted average common shares outstanding |  | 129,945 |  | 145,303 |  | 130,321 |  | 147,686
Diluted earnings per share: |  |  |  |  |  |  |  |
Common shares – distributed earnings |  | $ | 0.00 |  | $ | 0.00 |  | $ | 0.54 |  | $ | 0.49
Common shares – undistributed earnings |  | 0.58 |  | 0.41 |  | 1.13 |  | 0.70
Total common shares |  | $ | 0.58 |  | $ | 0.41 |  | $ | 1.67 |  | $ | 1.19
Unvested shares - distributed earnings |  | $ | 0.00 |  | $ | 0.00 |  | $ | 0.54 |  | $ | 0.49
Unvested shares - undistributed earnings |  | 0.58 |  | 0.41 |  | 1.13 |  | 0.70
Total unvested shares |  | $ | 0.58 |  | $ | 0.41 |  | $ | 1.67 |  | $ | 1.19

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