Fair Value measurement - Summary of Fair Value Assets Measured on Recurring Basis (Detail) - Listed Equity Securities [Member] - CNY (¥) ¥ in Thousands |
Dec. 31, 2022 |
Dec. 31, 2021 |
---|---|---|
Investments accounted for at fair value | ||
Investments, Fair Value | ¥ 808 | ¥ 840 |
Fair Value, Inputs, Level 1 [Member] | ||
Investments accounted for at fair value | ||
Investments, Fair Value | 808 | 840 |
Fair Value, Inputs, Level 2 [Member] | ||
Investments accounted for at fair value | ||
Investments, Fair Value | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] | ||
Investments accounted for at fair value | ||
Investments, Fair Value | ¥ 0 | ¥ 0 |