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Stockholder's Equity (Tables) | 12 Months Ended
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Jul. 31, 2018
Equity [Abstract] |
Schedule of stock options exercised utilizing a cashless exercise | The exercised stock options, utilizing a cashless exercise, are summarized in the following table:
Period |  | Options Exercised |  | Weighted Average Exercise Price |  | Shares Net Settled for Exercise |  | Shares Withheld for Taxes (1) |  | Net Shares to Employees |  | Weighted Average Share Price for Withholding |  | Employee Stock Based Tax Withholding (in 000s)
FY 2016—Q4 |  | 2,260,000 |  |  | $ | 9.32 |  |  | 821,296 |  |  | 586,304 |  |  | 852,400 |  |  | $ | 25.65 |  |  | $ | 15,039 |
FY 2017—Q1 |  | 18,000,000 |  |  | 7.70 |  |  | 5,408,972 |  |  | 5,255,322 |  |  | 7,335,706 |  |  | 25.62 |  |  | 134,615 |
FY 2018—Q2 |  | 80,000 |  |  | 6.54 |  |  | 11,996 |  |  | — |  |  | 68,004 |  |  | 43.60 |  |  | — |
(1) | Shares withheld for taxes are treated as a repurchase of shares for accounting purposes but do not count against the Company’s stock repurchase program.
Schedule of share-based compensation expense | The following table details stock-based payment compensation expense included in the company’s consolidated statements of income:
|  | Year Ended July 31,
(In thousands) |  | 2018 |  | 2017 |  | 2016
General and administrative |  | $ | 19,351 |  |  | $ | 17,622 |  |  | $ | 18,194 |
Yard operations |  | 3,870 |  |  | 3,286 |  |  | 2,670 |
Total stock-based payment compensation |  | $ | 23,221 |  |  | $ | 20,908 |  |  | $ | 20,864 |
Schedule of non-vested shares | A summary of the status of the Company’s non-vested shares and its activity during the year ended July 31, 2018 was as follows:
(In thousands, except per share amounts) |  | Number of Shares |  | Weighted Average Grant- date Fair Value
Non-vested shares at July 31, 2017 |  | 6,667 |  |  | $ | 5.57 |
Grants of non-vested shares |  | 2,383 |  |  | 8.88 |
Vested |  | (3,376 | ) |  | 5.67 |
Forfeitures or expirations |  | (158 | ) |  | 4.89 |
Non-vested shares at July 31, 2018 |  | 5,516 |  |  | $ | 6.96 |
Schedule of option activity | Stock option activity for the year ended July 31, 2018 was as follows:
(In thousands, except per share and term data) |  | Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (In years) |  | Aggregate Intrinsic Value
Outstanding as of July 31, 2017 |  | 18,774 |  |  | $ | 17.14 |  |  | 6.48 |  | $ | 269,449 |
Grants of options |  | 2,383 |  |  | 36.78 |  |  |  |  |
Exercises |  | (3,202 | ) |  | 14.05 |  |  |  |  |
Forfeitures or expirations |  | (158 | ) |  | 20.93 |  |  |  |  |
Outstanding as of July 31, 2018 |  | 17,797 |  |  | $ | 20.29 |  |  | 6.19 |  | $ | 660,268 |
Exercisable as of July 31, 2018 |  | 12,281 |  |  | $ | 17.41 |  |  | 5.51 |  | $ | 490,951 |
Vested and expected to vest as of July 31, 2018 |  | 17,232 |  |  | $ | 20.06 |  |  | 6.13 |  | $ | 643,206 |
Schedule of stock options outstanding and exercisable | The following table summarizes stock options outstanding and exercisable as of July 31, 2018:
(In thousands, except per share amounts) |  | Options Outstanding |  | Options Exercisable
Range of Exercise Prices |  | Number |  | Weighted Average Remaining Contractual Life |  | Weighted Average Exercise Price |  | Number |  | Weighted Average Exercise Price
$8.19–$17.64 |  | 1,789 |  |  | 3.30 |  | $ | 11.44 |  |  | 1,726 |  |  | $ | 11.25 |
$17.73–$17.81 |  | 9,451 |  |  | 5.75 |  | 17.79 |  |  | 7,526 |  |  | 17.80 |
$18.06–$18.61 |  | 2,770 |  |  | 6.06 |  | 18.33 |  |  | 2,088 |  |  | 18.29 |
$18.84–$50.30 |  | 3,787 |  |  | 8.74 |  | 32.14 |  |  | 941 |  |  | 23.73 |
Outstanding and exercisable as of July 31, 2018 |  | 17,797 |  |  | 6.19 |  | $ | 20.29 |  |  | 12,281 |  |  | $ | 17.41 |

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