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Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives and Depreciation Calculation Methods (Detail) | 12 Months Ended
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Dec. 31, 2018
Engineering equipment [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Depreciation method | Straight-line
Office equipment [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Depreciation method | Straight-line
Other [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Depreciation method | Straight-line
Leasehold improvements [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Depreciation method | Straight-line over term of lease to a maximum of 15 years or the improvement's economic life
Estimated Lives | 15 years
Bottom of range [member] | Engineering equipment [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated Lives | 5 years
Bottom of range [member] | Office equipment [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated Lives | 5 years
Bottom of range [member] | Other [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated Lives | 5 years
Top of range [member] | Engineering equipment [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated Lives | 10 years
Top of range [member] | Office equipment [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated Lives | 10 years
Top of range [member] | Other [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated Lives | 50 years

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- Definition The depreciation method used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2018-01-01 -Paragraph 73 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2018-03-01&anchor=para_73_b&doctype=Standard -URIDate 2018-03-16 + 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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- Definition The useful lives or depreciation rates used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2018-01-01 -Paragraph 73 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2018-03-01&anchor=para_73_c&doctype=Standard -URIDate 2018-03-16 + 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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- Details
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