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Fair Value Measurement - Summary of fair value, assets and liabilities measured on recurring basis (Details) - Dec. 31, 2022 - Recurring ¥ in Thousands, $ in Thousands	CNY (¥)	USD ($)
Fair value of net assets
Short-term investments	¥ 111,353	$ 16,145
Total	111,353	$ 16,145
Significant Other Observable Inputs (Level 2)
Fair value of net assets
Short-term investments	111,353
Total	¥ 111,353

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- Definition

Fair value of asset after deduction of liability.

+ References

No definition available.

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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 https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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