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Share-based Compensation (Tables) | 12 Months Ended
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Aug. 25, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Weighted Average Assumptions | The fair value of each stock appreciation right is estimated on the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions used:
Fiscal year ended August | 2018 |  | 2017 |  | 2016
Risk-free interest rate | 2.23 | % |  | 1.58 | % |  | 1.76 | %
Expected dividend yield | 0.18 | % |  | 0.21 | % |  | 0.25 | %
Expected life in years | 7.41 |  |  | 7.43 |  |  | 7.40 |
Expected volatility | 23.1 | % |  | 24.0 | % |  | 29.3 | %
Summary of Share-Based Award Activity for Stock Options and Stock Appreciation Rights | The following table summarizes the Share-Based Awards activity in the form of stock options and stock appreciation rights for fiscal 2018:
| Number of Shares |  | Weighted Average Exercise Price
Outstanding, August 26, 2017 | 600,606 |  |  | $ | 94.98 |
Granted | 124,089 |  |  | 157.13 |
Exercised | (109,775 | ) |  | 65.40 |
Forfeited | (28,994 | ) |  | 152.12 |
Outstanding, August 25, 2018 | 585,926 |  |  | $ | 110.86 |
Exercisable, August 25, 2018 | 133,681 |  |  | $ | 87.68 |
Summary of Share-Based Award Activity for Restricted Stock Units | The following table summarizes the Share-Based Awards activity in the form of restricted stock units for fiscal 2018:
| Number of Shares |  | Weighted Average Exercise Price
Unvested balance at August 26, 2017 | — |  |  | $ | — |
Granted | 11,720 |  |  | 168.27 |
Vested | — |  |  | — |
Forfeited | — |  |  | — |
Unvested balance at August 25, 2018 | 11,720 |  |  | $ | 168.27 |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&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 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: 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=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=96867065&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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