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Fair Value Measurements - Summary Of Assets And Liabilities That Are Measured Or Disclosed At Fair Value On a Recurring Basis (Detail) - Short-term Investments - Fair Value, Recurring - CNY (¥) ¥ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Assets: |  |
Short-term investments | ¥ 884,996 | ¥ 536,401
Significant other observable inputs (Level 2) |  |
Assets: |  |
Short-term investments | ¥ 884,996 | ¥ 536,401

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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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