Consolidated Statements of Changes in Equity - USD ($) $ in Thousands |
Total |
Common Shares [Member] |
Additional Paid-in Capital [Member] |
Treasury Stock [Member] |
Accumulated other comprehensive (loss)/income [Member] |
Statutory Reserves [Member] |
Retained Earnings [Member] |
Total New Oriental Education & Technology Group Inc. Shareholders' Equity [Member] |
Non-controlling Interests [Member] |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance at May. 31, 2023 | $ 3,814,788 | $ 1,703 | $ 1,939,585 | $ (59) | $ (27,404) | $ 464,662 | $ 1,225,861 | $ 3,604,348 | $ 210,440 | ||||
| Balance, shares at May. 31, 2023 | 1,643,162,653 | ||||||||||||
| Share repurchase | (62,943) | (62,935) | (8) | (62,943) | |||||||||
| Share repurchase, (shares) | (7,839,430) | ||||||||||||
| Vested NES | (12) | 12 | |||||||||||
| Vested NES, (shares) | 12,191,640 | ||||||||||||
| Share-based compensation expenses | 122,458 | 50,672 | 50,672 | 71,786 | |||||||||
| Transfer to statutory reserves | 21,091 | (21,091) | |||||||||||
| Net income | 325,218 | 309,591 | 309,591 | 15,627 | |||||||||
| Foreign currency translation adjustment | (51,130) | (49,534) | (49,534) | (1,596) | |||||||||
| Unrealized gain (loss) on available-for-sale investments, net of tax effect of US$6,191, US$1,418 and US$50 | (18,843) | (18,843) | (18,843) | ||||||||||
| Purchase of non-controlling interests (Note 2) | (84,465) | (57,357) | (57,357) | (27,108) | |||||||||
| Exercise of share options in East Buy | 3,931 | 3,931 | |||||||||||
| Balance at May. 31, 2024 | 4,049,014 | $ 1,703 | 1,869,953 | (55) | (95,781) | 485,753 | 1,514,361 | 3,775,934 | 273,080 | ||||
| Balance, shares at May. 31, 2024 | 1,647,514,863 | ||||||||||||
| Share repurchase | (445,495) | (445,417) | $ (78) | (445,495) | |||||||||
| Share repurchase, (shares) | [1] | (78,117,530) | 78,117,530 | ||||||||||
| Vested NES | (11) | $ 11 | |||||||||||
| Vested NES, (shares) | 10,891,280 | ||||||||||||
| Share-based compensation expenses | 59,933 | 48,129 | 48,129 | 11,804 | |||||||||
| Transfer to statutory reserves | 17,164 | (17,164) | |||||||||||
| Dividends | (98,197) | (98,197) | (98,197) | ||||||||||
| Net income | 375,833 | 371,716 | 371,716 | 4,117 | |||||||||
| Foreign currency translation adjustment | 19,492 | 19,418 | 19,418 | 74 | |||||||||
| Unrealized gain (loss) on available-for-sale investments, net of tax effect of US$6,191, US$1,418 and US$50 | (4,252) | (4,252) | (4,252) | ||||||||||
| Purchase of non-controlling interests (Note 2) | (15,546) | (5,380) | (5,380) | (10,166) | |||||||||
| Exercise of share options in East Buy | 12,950 | 12,950 | |||||||||||
| Balance at May. 31, 2025 | 3,953,732 | $ 1,703 | 1,467,274 | (122) | (80,615) | 502,917 | 1,770,716 | 3,661,873 | 291,859 | ||||
| Balance, shares at May. 31, 2025 | 1,580,288,613 | ||||||||||||
| Share repurchase | (230,890) | (230,848) | $ (42) | (230,890) | |||||||||
| Share repurchase, (shares) | [2] | (42,388,690) | 42,388,690 | ||||||||||
| Cancellation of treasury stock | $ 2 | $ 2 | |||||||||||
| Vested NES | (11) | 11 | |||||||||||
| Vested NES, (shares) | 11,168,860 | ||||||||||||
| Share-based compensation expenses | 88,466 | 78,925 | 78,925 | 9,541 | |||||||||
| Transfer to statutory reserves | 28,336 | (28,336) | |||||||||||
| Dividends | (189,774) | (188,595) | (188,595) | (1,179) | |||||||||
| Net income | 516,661 | 475,172 | 475,172 | 41,489 | |||||||||
| Foreign currency translation adjustment | 202,107 | 190,366 | 190,366 | 11,741 | |||||||||
| Unrealized gain (loss) on available-for-sale investments, net of tax effect of US$6,191, US$1,418 and US$50 | 3,170 | 3,170 | 3,170 | ||||||||||
| Purchase of non-controlling interests (Note 2) | (24,742) | (3,698) | (3,698) | (21,044) | |||||||||
| Exercise of share options in East Buy | 5,686 | 5,686 | |||||||||||
| Balance at May. 31, 2026 | $ 4,324,416 | $ 1,701 | $ 1,311,642 | $ (151) | $ 112,921 | $ 531,253 | $ 2,028,957 | $ 3,986,323 | $ 338,093 | ||||
| Balance, shares at May. 31, 2026 | 1,549,068,783 | ||||||||||||
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| X | ||||||||||
- Definition Exercise of share options in east buy. No definition available.
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| X | ||||||||||
- Definition Purchase Of Noncontrolling interests. No definition available.
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| X | ||||||||||
- Definition Shares vested during period shares non vested equity shares. No definition available.
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| X | ||||||||||
- Definition Shares vested during period value non vested equity shares. No definition available.
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| X | ||||||||||
- Definition The element represented the equity transfer from retained earnings to statutory reserves during the period. No definition available.
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| X | ||||||||||
- Definition Stock repurchase during period shares. No definition available.
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| X | ||||||||||
- Definition Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of shares issued which are neither cancelled nor held in the treasury. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate 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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of decrease of par value, additional paid in capital (APIC) and retained earnings of common and preferred stock retired from treasury when treasury stock is accounted for under the par value method. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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