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Summary of Significant Accounting Policies - Schedule of carrying amount of goodwill (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024 CNY (¥)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 CNY (¥)	Dec. 31, 2022 CNY (¥)
Goodwill [Roll Forward]
Balances	¥ 80,751		¥ 3,420	¥ 3,420
Additions	0		77,331	0
Balances	80,751	$ 11,063	80,751	3,420
Insurance
Goodwill [Roll Forward]
Balances	78,579		1,248	1,248
Additions	0		77,331	0
Balances	78,579		78,579	1,248
Others
Goodwill [Roll Forward]
Balances	2,172		2,172	2,172
Additions	0		0	0
Balances	¥ 2,172		¥ 2,172	¥ 2,172

X

- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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X

- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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