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Shares Repurchased and Dividends - Narrative (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
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May 31, 2025 USD ($) $ / shares shares | Mar. 01, 2025 $ / shares | Nov. 30, 2024 $ / shares | May 25, 2024 $ / shares shares | Feb. 24, 2024 $ / shares | Nov. 25, 2023 $ / shares | May 31, 2025 USD ($) $ / shares shares | May 25, 2024 $ / shares shares | Aug. 31, 2024 $ / shares shares | Aug. 31, 2019 Vote | Apr. 08, 2025 USD ($) | Oct. 24, 2023 USD ($)
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Shares repurchased (in shares) | shares | 75,973 |  |  | 47,250 |  |  | 142,578 | 94,000 |  |  |  |
Total cost of shares repurchased divided by the total number of shares repurchased | $ 179.45 |  |  | $ 165.99 |  |  | $ 183.48 | $ 169.81 |  |  |  |
Stock repurchase, remaining to repurchase outstanding shares value | $ | $ 86,400,000 |  |  |  |  |  | $ 86,400,000 |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchase authorized, Value | $ |  |  |  |  |  |  |  |  |  |  | $ 100,000,000 | $ 100,000,000
Class B Common Stock |  |  |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Voting rights | Vote |  |  |  |  |  |  |  |  |  | 10 |  |
Number of shares converted (in shares) | shares | 5,000 |  |  |  |  |  | 36,860 |  | 0 |  |  |
Quarterly dividend amount (in dollars per share) | $ 0.28 | $ 0.28 | $ 0.28 | 0.264 | $ 0.264 | $ 0.264 |  |  |  |  |  |
Class B Common Stock | O 2024 Q4 Dividends |  |  |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Quarterly dividend amount (in dollars per share) |  |  |  |  |  |  |  |  | $ 0.264 |  |  |
Class B Common Stock | O 2025 Q1 Dividends |  |  |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Quarterly dividend amount (in dollars per share) |  |  | 0.28 |  |  |  |  |  |  |  |  |
Common Stock |  |  |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Voting rights | Vote |  |  |  |  |  |  |  |  |  | 1 |  |
Dividend rate |  |  |  |  |  |  |  |  |  | 125.00% |  |
Quarterly dividend amount (in dollars per share) | $ 0.35 | $ 0.35 | 0.35 | $ 0.33 | $ 0.33 | $ 0.33 |  |  |  |  |  |
Common Stock | O 2024 Q4 Dividends |  |  |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Quarterly dividend amount (in dollars per share) |  |  |  |  |  |  |  |  | $ 0.33 |  |  |
Common Stock | O 2025 Q1 Dividends |  |  |  |  |  |  |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Quarterly dividend amount (in dollars per share) |  |  | $ 0.35 |  |  |  |  |  |  |  |  |

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