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Taxation - Summary of Operating Loss Carry Forward (Detail) - CNY (¥) ¥ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | ¥ 112,248 | ¥ 72,988
Loss expiring in 2022 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 7,626 |
Loss expiring in 2023 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 5,620 |
Loss expiring in 2024 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 18,949 |
Loss expiring in 2025 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 22,150 |
Loss expiring in 2026 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 64,533 |
Loss expiring in 2027 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 15,141 |
Loss expiring in 2028 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 47,863 |
Loss expiring in 2029 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 156,879 |
Loss expiring in 2030 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 156,066 |
Loss expiring in 2031 |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | 207,664 |
Operating loss carry forwards |  |
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | ¥ 702,491 |

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
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