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v3.25.1

Short-Term and Long-Term Borrowings - Additional Information (Detail) - CNY (¥) ¥ in Thousands | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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Dec. 31, 2024 | Jul. 31, 2026 | Jun. 26, 2026 | May 31, 2026 | Apr. 19, 2026 | Jul. 31, 2025 | Jun. 26, 2025 | May 31, 2025 | Apr. 27, 2025 | Apr. 24, 2025 | Apr. 19, 2025 | Jul. 31, 2024 | Jun. 26, 2024 | May 31, 2024 | Apr. 27, 2024 | Apr. 24, 2024 | Apr. 19, 2024 | Dec. 31, 2023 | Dec. 27, 2023 | Apr. 27, 2023 | Apr. 24, 2023
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  |  | ¥ 10,000 | ¥ 10,000 | ¥ 75,000 |  |  | ¥ 43,000 |  | ¥ 100,000 | ¥ 80,000 | ¥ 50,000
Debt instrument, annual principal payment |  | ¥ 8,000 | ¥ 6,000 | ¥ 71,500 | ¥ 40,000 | ¥ 2,000 | ¥ 3,500 | ¥ 2,000 | ¥ 76,500 | ¥ 42,500 | ¥ 3,000 |  | ¥ 500 | ¥ 1,500 | ¥ 2,000 | ¥ 5,000 |  |  |  | ¥ 1,500 | ¥ 2,500
Debt instrument, repurchase amount | ¥ 500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt, weighted average interest rate | 3.68% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.88% |  |  |
Debt instrument term, Description | June 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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