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Segment Information - Schedule of Impact on Application of IFRS (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 TWD ($)
Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Interest expense increased | $ 14,349
Testing [member] |
Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Depreciation expenses increased | 7,631
Interest expense increased | 4,207
Assembly [member] |
Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Depreciation expenses increased | 6,035
Interest expense increased | 3,260
LCDD [member] |
Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Depreciation expenses increased | 10,703
Interest expense increased | 5,862
Bumping [member] |
Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Depreciation expenses increased | 1,137
Interest expense increased | 492
Others [member] |
Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Depreciation expenses increased | 5,808
Interest expense increased | 319
Elimination [member] |
Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Depreciation expenses increased | 0
Interest expense increased | 0
Total Continuous operations [member] |
Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Depreciation expenses increased | 31,314
Interest expense increased | $ 14,140

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- Definition The amount of depreciation expense. Depreciation is the systematic allocation of depreciable amounts of tangible assets over their useful lives. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + 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 amount of interest expense on lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2019-01-01 -Paragraph 53 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_53_b&doctype=Standard -URIDate 2019-03-27 + 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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