Share-Based Compensation - Movements of share options under the Koolearn Pre IPO Share Option Scheme (Detail) - Koolearn pre ipo share option scheme [Member]	12 Months Ended
May 31, 2023 $ / shares shares	May 31, 2022 $ / shares shares
Number of share options outstanding, Beginning balance \| shares	35,911,985	36,902,985
Number of share options, Forfeited \| shares		(837,500)
Number of share options, Exercised \| shares	(8,827,600)	(153,500)
Number of share options outstanding, Ending balance \| shares	27,084,385	35,911,985
Number of share options, Options vested and expected to vest \| shares	27,084,385
Weighted average exercise prices, Options outstanding, Beginning balance \| $ / shares	$ 1.13	$ 1.13
Weighted average exercise prices, Options, Forfeited \| $ / shares		1.13
Weighted average exercise prices, Exercised \| $ / shares	1.13	1.13
Weighted average exercise prices, Options outstanding, Ending balance \| $ / shares	1.13	$ 1.13
Weighted average exercise prices, Options vested and expected to vest \| $ / shares	$ 1.13

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Number of share options (or share units) exercised during the current period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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