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New Accounting Standards Not Yet in Effect - Summary of Accounting Standards (Detail) | 12 Months Ended
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Dec. 31, 2019
IFRS 17 [Member] |
Description Of Expected Impact Of Initial Application Of New Standards Or Interpretations [Line Items] |
Title of new IFRS | Insurance Contracts
Amendments to IFRS 10 and IAS 28 [Member] |
Description Of Expected Impact Of Initial Application Of New Standards Or Interpretations [Line Items] |
Title of new IFRS | Sale or Contribution of Assets between an Investor and its Associate or Joint Venture
Amendments IFRS 3 [Member] |
Description Of Expected Impact Of Initial Application Of New Standards Or Interpretations [Line Items] |
Title of new IFRS | Definition of a Business
Amendments to IAS 1 and IAS 8 [Member] |
Description Of Expected Impact Of Initial Application Of New Standards Or Interpretations [Line Items] |
Title of new IFRS | Definition of Material
Conceptual Framework [Member] |
Description Of Expected Impact Of Initial Application Of New Standards Or Interpretations [Line Items] |
Title of new IFRS | Amendments to References to Conceptual

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