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Segment Reporting - Summary of Total Long Lived Assets By Geographical Location (Detail) ¥ in Thousands, $ in Thousands	Dec. 31, 2024 CNY (¥)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 CNY (¥)
Schedule of long lived assets by geographical areas [Line item]
Long-lived assets	¥ 108,266	$ 14,833	¥ 149,284
PRC
Schedule of long lived assets by geographical areas [Line item]
Long-lived assets	102,154	13,996	127,866
United States
Schedule of long lived assets by geographical areas [Line item]
Long-lived assets	¥ 6,112	$ 837	¥ 21,418

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- Definition

Schedule of long lived assets by geographical areas [Lineitem].

+ References

No definition available.

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- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 41
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-41

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