Goodwill - Additional Information (Details)	12 Months Ended
Dec. 31, 2021 USD ($)	Dec. 31, 2021 CNY (¥)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2019 CNY (¥)
Goodwill And Intangible Assets Disclosure [Abstract]
Impairment of goodwill	$ 0	¥ 0	$ 0	¥ 0	¥ 0

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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