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Earnings per Share - Schedule of Buyback Activity by Program (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended | 34 Months Ended
--- | --- | ---
May 31, 2024 | May 31, 2023 | May 31, 2022 | May 31, 2024
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Purchase Price | $ 700,033 | $ 398,865 | $ 1,525,873 |
Shares acquired for taxes due (in shares) | 331 | 430 | 305 |
Shares acquired for taxes due, average price (in dollars per share) | $ 557.34 | $ 420.21 | $ 397.16 |
Shares acquired for taxes due | $ 184,645 | $ 180,577 | $ 121,224 |
Total repurchase of Cintas common stock | $ 700,033 | $ 398,865 | $ 1,525,873 |
Share Repurchase Programs |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Shares (in shares) | 941 | 550 | 3,740 |
Average Price per Share (in dollars per share) | $ 547.69 | $ 396.69 | $ 375.53 |
Purchase Price | $ 515,388 | $ 218,288 | $ 1,404,649 |
Share Buyback Program October 2019 |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Shares (in shares) | 0 | 0 | 1,590 |
Average Price per Share (in dollars per share) | $ 0 | $ 0 | $ 365.41 |
Purchase Price | $ 0 | $ 0 | $ 581,220 |
Share Buyback Program July 27 2021 |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Shares (in shares) | 856 | 550 | 2,150 | 3,600
Average Price per Share (in dollars per share) | $ 535.21 | $ 396.69 | $ 383.01 | $ 421.77
Purchase Price | $ 458,284 | $ 218,288 | $ 823,429 | $ 1,500,000
Share Buyback Program July 26 2022 |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Shares (in shares) | 85 | 0 | 0 |
Average Price per Share (in dollars per share) | $ 673.78 | $ 0 | $ 0 |
Purchase Price | $ 57,104 | $ 0 | $ 0 |

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