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Earnings Per Share - Summary of Earnings Per Share (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 CNY (¥) shares | Dec. 31, 2021 USD ($) shares | Dec. 31, 2020 CNY (¥) shares | Dec. 31, 2019 CNY (¥) shares
Earnings per share [abstract] |  |  |  |
Profit attributable to ordinary equity holders of the company | ¥ 272,673 | $ 43,129 | ¥ 548,903 | ¥ 604,914
Weighted average number of ordinary shares | 40,858,290 | 40,858,290 | 40,858,290 | 40,858,290
Diluted effect of share options | 0 | 0 |  |
Weighted average number of ordinary shares adjusted for effect of dilution | 40,858,290 | 40,858,290 | 40,858,290 | 40,858,290

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- Definition The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_70_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The number of dilutive potential ordinary shares that relate to the assumed exercise of the entity's share options. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_70_b&doctype=Standard -URIDate 2021-03-24 + Details
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- References No definition available. + Details
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- Definition The profit (loss) from continuing and discontinued operations attributable to owners of the parent. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 81B -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_81B_a_ii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2021-01-01 -Paragraph 70 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2021-en-r&anchor=para_70_b&doctype=Standard -URIDate 2021-03-24 + Details
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