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Earnings Per Share | 6 Months Ended
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Mar. 31, 2012
Earnings Per Share |
Earnings Per Share | Note 3. Earnings per share Basic earnings per share is computed by dividing net earnings available to common stockholders by the weighted-average number of shares of common stock outstanding for the period. Diluted earnings per share reflects the weighted-average number of shares outstanding after the assumed conversion of all dilutive securities. The following is a reconciliation of net earnings to basic earnings per share and diluted earnings per share:
|  | Three-Months Ending March 31, |  |  | Six-Months Ending March 31, |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings |  | $ | 38,751 |  |  | $ | 32,090 |  |  | $ | 67,168 |  |  | $ | 54,489 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic shares outstanding |  |  | 69,077 |  |  |  | 68,752 |  |  |  | 68,998 |  |  |  | 68,782 |
Dilutive effect of stock options |  |  | 1,547 |  |  |  | 1,355 |  |  |  | 1,506 |  |  |  | 1,358 |
Diluted shares outstanding |  |  | 70,624 |  |  |  | 70,107 |  |  |  | 70,504 |  |  |  | 70,140 |
Income per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share |  | $ | 0.56 |  |  | $ | 0.47 |  |  | $ | 0.97 |  |  | $ | 0.79 |
Diluted earnings per share |  | $ | 0.55 |  |  | $ | 0.46 |  |  | $ | 0.95 |  |  | $ | 0.78 |
The following stock option grants were outstanding during the three and six-months ending March 31, 2012 and 2011, but were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive:
|  | Three-Months Ending March 31, |  |  | Six-Months Ending March 31, |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Options |  |  | 6 |  |  |  | 680 |  |  |  | 39 |  |  |  | 678 |
Weighted-average option price |  | $ | 40.60 |  |  | $ | 32.03 |  |  | $ | 34.63 |  |  | $ | 32.02 |
The weighted-average shares of common stock outstanding for basic and diluted earnings per share included weighted-average treasury stock shares held for deferred compensation obligations of the following:
|  | Three-Months Ending March 31, |  |  | Six-Months Ending March 31, |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Weighted-average treasury stock shares held for deferred compensation obligations |  |  | 304 |  |  |  | 345 |  |  |  | 307 |  |  |  | 348 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=6945512&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1278-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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