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Stock-based Payment Compensation (Tables) | 6 Months Ended
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Jan. 31, 2017
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 six months ended January 31, 2017:
(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, 2016 |  | 19,451 |  |  | $ | 24.30 |  |  | 4.96 |  | $ | 508,401 |
Grants of options |  | 428 |  |  | 55.02 |  |  |  |  |
Exercises |  | (9,892 | ) |  | 16.07 |  |  |  |  |
Forfeitures or expirations |  | (131 | ) |  | 36.22 |  |  |  |  |
Outstanding as of January 31, 2017 |  | 9,856 |  |  | $ | 33.75 |  |  | 6.85 |  | $ | 226,630 |
Exercisable as of January 31, 2017 |  | 5,728 |  |  | $ | 30.73 |  |  | 6.14 |  | $ | 148,998 |
Recognized stock-based compensation expense | The table below sets forth the stock-based payment compensation recognized by the Company:
|  | Three Months Ended January 31, |  | Six Months Ended January 31,
(In thousands) |  | 2017 |  | 2016 |  | 2017 |  | 2016
General and administrative |  | $ | 4,712 |  |  | $ | 4,710 |  |  | $ | 8,996 |  |  | $ | 9,438 |
Yard operations |  | 808 |  |  | 676 |  |  | 1,609 |  |  | 1,362 |
Total stock-based payment compensation |  | $ | 5,520 |  |  | $ | 5,386 |  |  | $ | 10,605 |  |  | $ | 10,800 |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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=27013229&loc=d3e301413-122809 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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