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Income Taxes - Summary of Group's Loss before Income Taxes (Detail) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024 CNY (¥)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 CNY (¥)	Dec. 31, 2022 CNY (¥)
Total loss before income tax	¥ (340,741)	$ (46,683)	¥ (651,301)	¥ (969,248)
PRC
Total loss before income tax	(305,469)	(41,850)	(604,997)	(892,612)
Non PRC [Member]
Total loss before income tax	¥ (35,272)	$ (4,833)	¥ (46,304)	¥ (76,636)

X

- Definition

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
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