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Shares Repurchased and Dividends - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | ---
May 30, 2020 | Oct. 23, 2019 | Oct. 22, 2019 | Jan. 02, 2019 | May 30, 2020 | Feb. 29, 2020 | Nov. 30, 2019 | May 25, 2019 | Feb. 23, 2019 | Nov. 24, 2018 | May 30, 2020
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stock Repurchased During Period, Value |  |  |  | $ 100.0 |  |  |  |  |  |  |
Shares repurchased (in shares) | 314,917 |  |  |  | 46,667 |  |  |  |  |  | 117,767
Total cost of shares repurchased divided by the total number of shares repurchased | $ 165.96 |  |  |  | $ 161.65 |  |  |  |  |  | $ 184.67
Class B Common Stock |  |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Quarterly dividend amount (in dollars per share) |  | $ 0.20 | $ 0.09 |  | 0.20 | $ 0.20 | $ 0.20 | $ 0.0900 | $ 0.0900 | $ 0.0900 |
Common Stock |  |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Quarterly dividend amount (in dollars per share) |  | $ 0.25 | $ 0.1125 |  | $ 0.25 | $ 0.25 | $ 0.25 | $ 0.1125 | $ 0.1125 | $ 0.1125 |

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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