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Income Taxes - Narrative (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 22, 2017 | Feb. 24, 2018 | Aug. 31, 2019 | Aug. 25, 2018 | Aug. 26, 2017
Percentage of domestic federal statutory tax rate |  |  | 21.00% | 25.90% | 35.00%
Provisional net benefit |  | $ (20,100) |  | $ 20,100 |
Effective income tax rate |  |  | 24.70% | 12.50% | 39.00%
Unrecognized tax benefits |  |  | $ 7,668 | $ 2,198 | $ 4,214
Total unrecognized tax benefits |  |  | 7,000 | 1,900 |
Accrued interest and penalties |  |  | $ 200 | $ 100 |
Maximum |  |  |  |  |
Percentage of domestic federal statutory tax rate | 35.00% |  |  |  |
Minimum |  |  |  |  |
Percentage of domestic federal statutory tax rate | 21.00% |  |  |  |

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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
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