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Net Earnings Per Share (Basic And Dilutive Net Earnings Per Share Reconciliations) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | |
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May 31, 2014
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May 31, 2013
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| Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items] | ||
| Net earnings | $ 169,653 | $ 146,651 |
| Weighted average common shares outstanding | 220,268 | 224,618 |
| Weighted average common shares and dilutive potential common shares | 223,632 | 228,552 |
| Basic net earnings per share | $ 0.77 | $ 0.65 |
| Diluted net earnings per share | $ 0.76 | $ 0.64 |
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Stock Options [Member]
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| Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items] | ||
| Dilutive potential common shares | 2,772 | 3,194 |
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Stock-Settled Restricted Stock Units [Member]
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| Schedule of Basic and Dilutive Net Earnings Per Share Reconciliation [Line Items] | ||
| Dilutive potential common shares | 592 | 740 |