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Borrowings - Summary of Bank Loans (Parenthetical) (Detail) - Bank loans [member] | Dec. 31, 2017 | Dec. 31, 2016
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Syndicated bank loans [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual interest rates |  | 2.55%
Syndicated bank loans [Member] | Bottom of range [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual interest rates | 2.61% |
Syndicated bank loans [Member] | Top of range [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual interest rates | 2.70% |
Other loans [Member] | Bottom of range [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual interest rates | 0.93% | 0.74%
Other loans [Member] | Top of range [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual interest rates | 2.10% | 4.48%
Mortgage loans [Member] | Bottom of range [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual interest rates | 4.95% | 4.95%
Mortgage loans [Member] | Top of range [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Annual interest rates | 5.39% | 5.39%

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- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 7 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_7&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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