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Income tax disclosure.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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

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The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets.

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INCOME TAXES - Additional Information (Detail) ¥ / shares in Units, $ in Thousands, $ in Thousands	12 Months Ended												48 Months Ended
	Dec. 31, 2025 CNY (¥) ¥ / shares	Dec. 31, 2025 USD ($)	Dec. 31, 2025 HKD ($)	Dec. 31, 2024 CNY (¥) ¥ / shares	Dec. 31, 2024 HKD ($)	Dec. 31, 2023 CNY (¥) ¥ / shares	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2028	Dec. 31, 2026
Income Tax Disclosure [Line Items]
Income tax rate	25.00%	25.00%	25.00%	25.00%	25.00%	25.00%
Income tax rate	1.30%	1.30%	1.30%
Net operating loss carried forward	¥ 3,941,813,000
Unrecognized uncertain tax positions	¥ 0			¥ 0
Increase Decrease in net income/loss per ordinary share-diluted \| ¥ / shares	¥ 0.3			¥ 0.4		¥ 0.1
Income tax (expenses)/benefits	¥ 4,111,000	$ 588		¥ (8,632,000)		¥ (10,657,000)
Chinese Mainland
Income Tax Disclosure [Line Items]
Income tax (expenses)/benefits	4,111,000
Non-Chinese Mainland
Income Tax Disclosure [Line Items]
Income tax (expenses)/benefits	0
Exemption For Income Tax Holiday [Member]
Income Tax Disclosure [Line Items]
Increase (decrease) in income tax expenses	¥ (49,001,000)			¥ (67,850,000)		¥ 17,480,000
Minimum
Income Tax Disclosure [Line Items]
Net operating loss carried forward, expire date	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Maximum
Income Tax Disclosure [Line Items]
Net operating loss carried forward, expire date	Dec. 31, 2034	Dec. 31, 2034	Dec. 31, 2034
BaiJiaHuLian HK [Member] \| Assessable Profit Threshold Minimum
Income Tax Disclosure [Line Items]
Assessable profit threshold limit \| $			$ 2,000
Income tax rate	8.25%	8.25%	8.25%
BaiJiaHuLian HK [Member] \| Assessable Profit Threshold Maximum
Income Tax Disclosure [Line Items]
Assessable profit threshold limit \| $			$ 2,000
Income tax rate	16.50%	16.50%	16.50%
Beijing Lexuebang [Member] \| High And New Technology Enterprise
Income Tax Disclosure [Line Items]
Income tax rate				15.00%	15.00%	15.00%	15.00%	15.00%	15.00%	15.00%			15.00%
Beijing Yuexuebang [Member] \| Software Enterprise [Member]
Income Tax Disclosure [Line Items]
Income tax rate	12.50%	12.50%	12.50%	0.00%	0.00%	0.00%
Beijing Gaotu [Member] \| High And New Technology Enterprise
Income Tax Disclosure [Line Items]
Income tax rate							15.00%	15.00%	15.00%	15.00%	15.00%	15.00%		15.00%
HK
Income Tax Disclosure [Line Items]
Foreign income tax expense benefit \| $			$ 0		$ 0