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Stock-based Compensation (Tables) | 6 Months Ended
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Jan. 31, 2014
Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract] |
Summary of option activity for stock options |
|  | Shares (in 000s) |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term |  |  | Aggregate Intrinsic Value (in 000s) |
Outstanding at July 31, 2013 |  |  | 14,922 |  |  | $ | 16.75 |  |  |  | 5.91 |  |  | $ | 235,086 |
Grants of options |  |  | 4,863 |  |  | $ | 35.73 |  |  |  |  |  |  |  |  |
Exercises |  |  | (291 | ) |  | $ | 16.42 |  |  |  |  |  |  |  |  |
Forfeitures or expirations |  |  | (77 | ) |  | $ | 15.42 |  |  |  |  |  |  |  |  |
Outstanding at January 31, 2014 |  |  | 19,417 |  |  | $ | 21.52 |  |  |  | 6.56 |  |  | $ | 254,817 |
Exercisable at January 31, 2014 |  |  | 12,592 |  |  | $ | 16.23 |  |  |  | 5.23 |  |  | $ | 227,287 |
Recognized stock-based compensation expense |
|  | Three Months Ended January 31, |  |  |  | Six Months Ended January 31, |
|  |  | 2014 |  |  |  | 2013 |  |  |  | 2014 |  |  |  | 2013 |
General and administrative |  | $ | 5,226 |  |  | $ | 4,245 |  |  | $ | 9,458 |  |  | $ | 8,815 |
Yard operations |  |  | 546 |  |  |  | 501 |  |  |  | 1,181 |  |  |  | 1,105 |
|  | $ | 5,772 |  |  | $ | 4,746 |  |  | $ | 10,639 |  |  | $ | 9,920 |

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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 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 4: 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 + 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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