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Concentration and Risks - Schedule of Concentration Risk of Other Receivables from Related Parties (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021 CNY (¥)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2021 USD ($)
Concentration Risk [Line Items]
Other receivables	¥ 88,367	¥ 88,038	$ 13,867
Xiaomi Inc | Other Receivables | Credit Risk
Concentration Risk [Line Items]
Other receivables	¥ 88,367	¥ 88,038
Concentration risk, percentage	100.00%	100.00%

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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Amount due from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth in nontrade transactions, classified as other, at the financial statement date. which are usually due within one year (or one business cycle).

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