Net Revenues - -Schedule of Contract Liabilities (Details0 ¥ in Thousands, $ in Thousands	6 Months Ended
Jun. 30, 2026 CNY (¥)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 CNY (¥)
Change in Contract with Customer, Liability [Abstract]
Balance at the beginning of the year	¥ 21,824	$ 3,216	¥ 26,346
Cash payment received from the customers	19,148	2,822	40,716
Revenue and value-added tax recognized	(21,942)	(3,234)	(47,767)
Balance at the end of the year	¥ 19,030	$ 2,805	¥ 19,295

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483467/210-10-45-8

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-11

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-2

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant