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Net Income per Common Share | 9 Months Ended
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Apr. 30, 2017
Earnings Per Share [Abstract] |
Net Income per Common Share | Net Earnings per Common Share Reconciliations of the numerator and denominator of the basic and diluted per share computations for the Company’s Class A and Class B common stock are summarized as follows:
| Three months ended April 30, |  | Nine months ended April 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Numerator: (in thousands) |  |  |  |  |  |  |
Earnings (Numerator for basic and diluted Class A Nonvoting Common Share) | $ | 22,553 |  |  | $ | 20,981 |  |  | $ | 70,403 |  |  | $ | 54,974 |
Less: |  |  |  |  |  |  |
Preferential dividends | — |  |  | — |  |  | (788 | ) |  | (783 | )
Preferential dividends on dilutive stock options | — |  |  | — |  |  | (14 | ) |  | (1 | )
Numerator for basic and diluted earnings per Class B Voting Common Share | $ | 22,553 |  |  | $ | 20,981 |  |  | $ | 69,601 |  |  | $ | 54,190 |
Denominator: (in thousands) |  |  |  |  |  |  |
Denominator for basic earnings per share for both Class A and Class B | 51,227 |  |  | 50,251 |  |  | 50,972 |  |  | 50,602 |
Plus: Effect of dilutive stock options and restricted stock units | 974 |  |  | 254 |  |  | 910 |  |  | 145 |
Denominator for diluted earnings per share for both Class A and Class B | 52,201 |  |  | 50,505 |  |  | 51,882 |  |  | 50,747 |
Net earnings per Class A Nonvoting Common Share: |  |  |  |  |  |  |
Basic | $ | 0.44 |  |  | $ | 0.42 |  |  | $ | 1.38 |  |  | $ | 1.09 |
Diluted | $ | 0.43 |  |  | $ | 0.42 |  |  | $ | 1.36 |  |  | $ | 1.08 |
Net earnings per Class B Voting Common Share: |  |  |  |  |  |  |
Basic | $ | 0.44 |  |  | $ | 0.42 |  |  | $ | 1.37 |  |  | $ | 1.07 |
Diluted | $ | 0.43 |  |  | $ | 0.42 |  |  | $ | 1.34 |  |  | $ | 1.07 |
Options to purchase 577,557 and 2,480,000 shares of Class A Nonvoting Common Stock for the three months ended April 30, 2017 and 2016, respectively, and 705,859 and 3,525,000 shares for the nine months ended April 30, 2017 and 2016, respectively, were not included in the computation of diluted net earnings or loss per share because the option exercise price was greater than the average market price of the common shares and, therefore, the effect would have been anti-dilutive.

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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 3 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1278-109256 Reference 2: 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 3: 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=64863997&loc=d3e1252-109256 Reference 4: 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=65016374&loc=d3e4984-109258 Reference 5: 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=63488584&loc=d3e20235-122688 + Details
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