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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
--- | ---
May 31, 2026 | May 31, 2025 | May 31, 2024
Equity, Class of Treasury Stock [Line Items] |  |  |
Shares acquired for taxes due (in shares) | 829 | 1,297 | 1,325
Shares acquired for taxes due, average price (in dollars per share) | $ 210.50 | $ 196.87 | $ 139.34
Shares acquired for taxes due | $ 174,319 | $ 255,471 | $ 184,645
Repurchase of common stock | $ 952,104 | $ 934,800 | $ 700,033
Share Repurchase Programs |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Shares (in shares) | 3,960 | 3,794 | 3,764
Average Price per Share (in dollars per share) | $ 196.38 | $ 179.07 | $ 136.92
Purchase Price | $ 777,785 | $ 679,329 | $ 515,388
Share Buyback Program July 27 2021 |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Shares (in shares) | 0 | 0 | 3,425
Average Price per Share (in dollars per share) | $ 0 | $ 0 | $ 133.80
Purchase Price | $ 0 | $ 0 | $ 458,284
Share Buyback Program July 26 2022 |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Shares (in shares) | 1,272 | 3,794 | 339
Average Price per Share (in dollars per share) | $ 207.13 | $ 179.07 | $ 168.44
Purchase Price | $ 263,564 | $ 679,329 | $ 57,104
Share Buyback Program July 23 2024 |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Shares (in shares) | 2,688 | 0 | 0
Average Price per Share (in dollars per share) | $ 191.29 | $ 0 | $ 0
Purchase Price | $ 514,221 | $ 0 | $ 0
Share Buyback Program October 28 2025 |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Shares (in shares) | 0 | 0 | 0
Average Price per Share (in dollars per share) | $ 0 | $ 0 | $ 0
Purchase Price | $ 0 | $ 0 | $ 0

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- Definition Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-4 + Details
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