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Leases - Additional Information (Detail) ¥ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021 CNY (¥)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 CNY (¥)
Statement [Line Items]
Cash outflows for leases	¥ 52.6	$ 8.3	¥ 51.9
Non-cash additions to right-of-use assets and lease liabilities	24.0	3.8	15.3
Operating lease rental income	¥ 15.2	$ 2.4	¥ 13.3
Bottom of range [member]
Statement [Line Items]
Operating lease, term	1 year	1 year
Operating lease term of contract	1 year	1 year
Top of range [member]
Statement [Line Items]
Operating lease, term	15 years	15 years
Operating lease term of contract	6 years	6 years

X

- Definition

Operating lease of our office and warehouse.

+ References

No definition available.

+ Details

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X

- Definition

Non cash additions to right of use assets and lease liabilities.

+ References

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X

- Definition

Operating lease, term of contract.

+ References

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X

- Definition

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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X

- Definition

The cash outflow for leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2021-01-01
-Paragraph 53
-Subparagraph g
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_53_g&doctype=Standard
-URIDate 2021-03-24

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X

- Definition

The amount of operating lease income. Operating lease is a lease that does not transfer substantially all the risks and rewards incidental to ownership of an underlying asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2021-01-01
-Paragraph 90
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_90_b&doctype=Standard
-URIDate 2021-03-24

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