SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of contract liabilities arising from contract with customers (Detail) ¥ in Thousands, $ in Thousands |
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
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|---|---|---|---|---|---|
| Revenue from Contract with Customer [Abstract] | |||||
| Deferred revenue, current portion | ¥ 2,289,322 | $ 327,369 | ¥ 1,867,096 | ||
| Deferred revenue, non-current portion | 276,620 | $ 39,556 | 218,797 | ||
| Contract liabilities arising from contract with customers | 2,565,942 | 2,085,893 | |||
| Refund liability | [1] | ¥ 125,813 | ¥ 127,969 | ||
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