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Stock-based Payment Compensation (Tables) | 9 Months Ended
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Apr. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary of option activity for stock options | The following is a summary of activity for the Company’s stock options for the nine months ended April 30, 2019:
(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, 2018 |  | 17,797 |  |  | $ | 20.29 |  |  | 6.19 |  | $ | 660,268 |
Grants of options |  | 1,900 |  |  | 57.40 |  |  |  |  |
Exercises |  | (4,054 | ) |  | 17.44 |  |  |  |  |
Forfeitures or expirations |  | (112 | ) |  | 26.42 |  |  |  |  |
Outstanding as of April 30, 2019 |  | 15,531 |  |  | $ | 25.53 |  |  | 6.17 |  | $ | 649,020 |
Exercisable as of April 30, 2019 |  | 10,942 |  |  | $ | 19.23 |  |  | 5.23 |  | $ | 526,234 |
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] |
(In thousands, except per share data) |  | Restricted Shares |  | Weighted Average Grant Date Fair Value
Outstanding as of July 31, 2018 |  | 28 |  |  | $ | 36.12 |
Grants of restricted stock |  | 162 |  |  | 55.57 |
Vested restricted stock |  | (2 | ) |  | 44.13 |
Forfeited restricted stock |  | (2 | ) |  | 44.74 |
Outstanding as of April 30, 2019 |  | 186 |  |  | $ | 52.84 |
Recognized stock-based compensation expense | The table below sets forth the stock-based compensation recognized by the Company for stock options and restricted stock awards:
|  | Three Months Ended April 30, |  | Nine Months Ended April 30,
(In thousands) |  | 2019 |  | 2018 |  | 2019 |  | 2018
General and administrative |  | $ | 4,299 |  |  | $ | 4,883 |  |  | $ | 13,979 |  |  | $ | 14,327 |
Yard operations |  | 1,351 |  |  | 1,058 |  |  | 3,621 |  |  | 2,912 |
Total stock-based compensation |  | $ | 5,650 |  |  | $ | 5,941 |  |  | $ | 17,600 |  |  | $ | 17,239 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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