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Significant Accounting Policies - Summery of Amortization Method and Amortization Period for the Principal Categories of Intangible Assets (Detail)	12 Months Ended
	Dec. 31, 2020
Patents [member]
Disclosure Of Intangible Assets [Line Items]
Amortization method	Straight-line
Amortization rate	20 years
Computer Software [member]
Disclosure Of Intangible Assets [Line Items]
Amortization method	Straight-line
Computer Software [member] | Bottom Of Range [Member]
Disclosure Of Intangible Assets [Line Items]
Amortization rate	3 years
Computer Software [member] | Maximum [member]
Disclosure Of Intangible Assets [Line Items]
Amortization rate	5 years

X

- Definition

The amortisation method used for intangible assets other than goodwill with finite useful lives. [Refer: Intangible assets other than goodwill; Depreciation and amortisation expense]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2020-01-01
-Paragraph 118
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2020-en-r&anchor=para_118_b&doctype=Standard
-URIDate 2020-01-01

+ Details

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Period Type:	duration

X

- 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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X

- Definition

Useful lives or amortization rates of intangible assets other than goodwill.

+ References

No definition available.

+ Details

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X

- Details

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X

- Details

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X

- Details

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X

- Details

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