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Quarterly Financial Data (Unaudited) - Schedule of Quarterly Financial Information (Parenthetical) (Details) - USD ($) $ / shares in Units, $ in Millions |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 02, 2019 | Mar. 27, 2018 | Aug. 31, 2019 | May 25, 2019 | Feb. 23, 2019 | Aug. 25, 2018 | May 26, 2018 | Feb. 24, 2018 | Aug. 31, 2019 | Aug. 25, 2018 | Aug. 26, 2017
Condensed Income Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares repurchased (in shares) |  |  | 52,650 | 99,500 | 45,000 |  |  |  | 197,150 |  |
Share price (in dollars per share) |  | $ 124.00 | $ 181.61 | $ 147.47 | $ 139.57 |  |  |  | $ 154.78 |  |
Impairment charge of capitalized costs as part of ongoing CRM systems project |  |  |  |  |  |  |  |  |  | $ 55.8 | $ 55.8
Gain (Loss) Related to Litigation Settlement |  |  |  |  | $ 21.1 |  |  |  | $ 21.1 |  |
One-time cash payment received for sale of CRM system |  |  |  |  | 13.0 |  |  |  | 13.0 |  |
Hardware received at fair value |  |  |  |  | $ 0.8 |  |  |  | $ 0.8 |  |
Diluted earnings per share on settlement agreement of CRM system |  |  |  |  |  |  |  |  | $ 0.81 |  |
Provisional net benefit |  |  |  |  |  |  |  | $ 20.1 |  | $ (20.1) |
Diluted earnings per share on re-measurement of deferred tax balances |  |  |  |  |  |  |  | $ 0.98 |  |  |
Combined common stock | $ 100.0 | $ 146.0 |  |  |  |  |  |  |  |  |
Pre-tax one time bonus expense related to tax reform |  |  |  |  |  | $ 7.2 |  |  |  |  |
Diluted loss per share on pre-tax one-time employee bonus |  |  |  |  |  |  | $ 0.25 |  |  |  |
Class B Common Stock |  |  |  |  |  |  |  |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares repurchased (in shares) |  | 1,105,000 |  |  |  |  |  |  |  |  |
Common Stock |  |  |  |  |  |  |  |  |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |  |  |
Shares repurchased (in shares) |  | 73,000 |  |  |  |  |  |  |  |  |

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