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Other Current Assets - Summary of Other Current Assets (Detail) ¥ in Thousands, $ in Thousands	Dec. 31, 2018 USD ($)	Dec. 31, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)		Jan. 01, 2017 CNY (¥)	[1]
Miscellaneous current assets [abstract]
Development properties	$ 3,029	¥ 20,267	¥ 23,833
Quoted equity securities	3,270	21,876	24,714
Derivative not designated as hedges - foreign exchange forward contract	677	4,529
Total	$ 6,976	¥ 46,672	¥ 48,547	[1]	¥ 35,559
[1] Restated

X

- Definition

Current derivative not designated as hedges foreign exchange forward contract.

+ References

No definition available.

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- Definition

Quoted equity securities.

+ References

No definition available.

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- Definition

The amount of property that is being constructed or developed for future use as investment property. [Refer: Investment property]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard
-URIDate 2018-03-16

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- References

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- Definition

The amount of current assets that the entity does not separately disclose in the same statement or note. [Refer: Current assets]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

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