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Earnings Per Share - Schedule of Buyback Activity by Program (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 30, 2024 | Aug. 31, 2024 | Nov. 30, 2023 | Aug. 31, 2023 | Nov. 30, 2024 | Nov. 30, 2023
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Purchase Price | $ 36,716 | $ 614,802 | $ 349,852 | $ 73,276 |  |
Shares acquired for taxes due (in shares) | 174 |  | 228 |  | 918 | 810
Shares acquired for taxes due, average price (in dollars per share) | $ 211.44 |  | $ 129.69 |  | $ 193.79 | $ 126.89
Shares acquired for taxes due | $ 36,716 |  | $ 29,586 |  | $ 177,901 | $ 102,862
Total repurchase of Cintas common stock | $ 36,716 |  | $ 349,852 |  | $ 651,518 | $ 423,128
Share Buyback Programs |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Shares (in shares) | 0 |  | 2,633 |  | 2,732 | 2,633
Average Price per Share (in dollars per share) | $ 0 |  | $ 121.64 |  | $ 173.40 | $ 121.64
Purchase Price | $ 0 |  | $ 320,266 |  | $ 473,617 | $ 320,266
July 27, 2021 Plan |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Shares (in shares) | 0 |  | 2,633 |  | 0 | 2,633
Average Price per Share (in dollars per share) | $ 0 |  | $ 121.64 |  | $ 0 | $ 121.64
Purchase Price | $ 0 |  | $ 320,266 |  | $ 0 | $ 320,266
July 26, 2022 Plan |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Shares (in shares) | 0 |  | 0 |  | 2,732 | 0
Average Price per Share (in dollars per share) | $ 0 |  | $ 0 |  | $ 173.40 | $ 0
Purchase Price | $ 0 |  | $ 0 |  | $ 473,617 | $ 0
July 23, 2024 Plan |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Shares (in shares) | 0 |  | 0 |  | 0 | 0
Average Price per Share (in dollars per share) | $ 0 |  | $ 0 |  | $ 0 | $ 0
Purchase Price | $ 0 |  | $ 0 |  | $ 0 | $ 0

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