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Associate Benefit Plans (Tables) | 12 Months Ended
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Aug. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Schedule Of Stock-Based Compensation Expense |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | For the Fiscal Years Ended
﻿ |  | August 31, |  | September 1, |  | September 2,
﻿ |  | 2019 |  | 2018 |  | 2017
﻿Stock options |  | $ | 4,786 |  | $ | 4,534 |  | $ | 4,369
﻿Restricted share awards |  |  | 1,552 |  |  | 2,856 |  |  | 4,399
﻿Restricted stock units |  |  | 9,633 |  |  | 7,281 |  |  | 4,872
﻿Associate Stock Purchase Plan |  |  | 312 |  |  | 263 |  |  | 285
﻿Total |  |  | 16,283 |  |  | 14,934 |  |  | 13,925
﻿Deferred income tax benefit |  |  | (4,006) |  |  | (4,376) |  |  | (5,292)
﻿Stock-based compensation expense, net |  | $ | 12,277 |  | $ | 10,558 |  | $ | 8,633
﻿
Summary Of Stock Option Activity |
﻿ |  |  |  |  |
﻿ |  | 2019
﻿ |  | Shares |  | Weighted-Average Exercise Price
﻿Outstanding - beginning of year |  | 1,760 |  | $ | 72.96
﻿Granted |  | 398 |  |  | 83.21
﻿Exercised |  | (208) |  |  | 75.03
﻿Canceled/Forfeited |  | (56) |  |  | 78.30
﻿Outstanding - end of year |  | 1,894 |  |  | 74.73
﻿Exercisable - end of year |  | 888 |  | $ | 72.63
﻿
Schedule Of Option Grant Fair Value Assumptions |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | 2019 |  | 2018 |  | 2017
﻿Expected life (in years) |  | 4.0 |  |  | 4.0 |  |  | 4.1 |
﻿Risk-free interest rate |  | 2.98 | % |  | 1.87 | % |  | 1.16 | %
﻿Expected volatility |  | 23.1 | % |  | 22.1 | % |  | 20.5 | %
﻿Expected dividend yield |  | 2.70 | % |  | 2.30 | % |  | 2.40 | %
﻿Weighted-Average Grant-Date Fair Value | $ | 14.05 |  | $ | 12.25 |  | $ | 9.29 |
﻿ |  |  |  |  |  |  |  |  |
﻿
Summary Of Stock Options By Range Of Exercise Price |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Range of Exercise Prices |  | Number of Options Outstanding at August 31, 2019 |  | Weighted-Average Remaining Contractual Life |  | Weighted-Average Exercise Price |  | Intrinsic Value |  | Number of Options Exercisable at August 31, 2019 |  | Weighted-Average Remaining Contractual Life |  | Weighted-Average Exercise Price |  | Intrinsic Value
﻿$ 58.90 – $ 69.46 |  | 386 |  | 3.1 |  | $ | 59.02 |  | $ | 3,322 |  | 266 |  | 3.1 |  | $ | 59.08 |  | $ | 2,277
﻿ 69.47 – 72.23 |  | 433 |  | 4.2 |  |  | 71.33 |  |  | — |  | 204 |  | 4.2 |  |  | 71.33 |  |  | —
﻿ 72.24 – 81.76 |  | 501 |  | 4.2 |  |  | 80.12 |  |  | — |  | 214 |  | 3.0 |  |  | 80.81 |  |  | —
﻿ 81.77 – 83.03 |  | 574 |  | 4.7 |  |  | 83.14 |  |  | — |  | 204 |  | 2.2 |  |  | 83.03 |  |  | —
﻿ |  | 1,894 |  | 4.1 |  | $ | 74.73 |  | $ | 3,322 |  | 888 |  | 3.1 |  | $ | 72.63 |  | $ | 2,277
﻿
Restricted Share Awards [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary Of Non-Vested Restricted Share Award Activity |
﻿ |  |  |  |
﻿ | 2019
﻿ | Shares |  |  | Weighted-Average Grant-Date Fair Value
﻿Non-vested restricted share awards at the beginning of the year | 63 |  | $ | 81.98
﻿Granted | — |  |  | —
﻿Vested | (41) |  |  | 81.95
﻿Canceled/Forfeited | (1) |  |  | 82.61
﻿Non-vested restricted share awards at the end of the year | 21 |  | $ | 82.00
﻿ |  |  |  |
﻿
Restricted Stock Units [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Summary Of Non-Vested Restricted Stock Unit Award Activity |
﻿ |  |  |  |
﻿ | 2019
﻿ | Shares |  |  | Weighted-Average Grant-Date Fair Value
﻿Non-vested restricted stock unit awards at the beginning of the year | 377 |  | $ | 73.18
﻿Granted | 179 |  |  | 82.68
﻿Vested | (105) |  |  | 72.97
﻿Canceled/Forfeited | (35) |  |  | 77.52
﻿Non-vested restricted stock unit awards at the end of the year | 416 |  | $ | 76.93
﻿

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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 (c)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + 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 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + 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=116856206&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=116856206&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=116856206&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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