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TAXATION - Additional Information - Mainland China (Details) - Mainland China	12 Months Ended
	Dec. 31, 2023
Income Tax and Tax Rate [Line Items]
Statutory income tax rate	25.00%
Withholding Tax Rate	10.00%
Tianjin Hongen Perfect Future Education Technology Co., Ltd. ("Tianjin Hongen", or the "VIE")
Income Tax and Tax Rate [Line Items]
Preferential income tax rate as SE	12.50%
Preferential income tax rate as HNTE	15.00%

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Income tax and tax rate [Line Items]

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Percentage of preferential income tax rate as HNTE.

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Percentage of preferential tax rate as "Software Enterprise" ("SE").

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Percentage of the withholding income tax.

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-12

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.Fact.4)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1

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