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v3.22.1

Income Tax - Summary of Projects were Exempted From Income Tax (Detail) - Construction and expansion of 2009 [member] - ASE Test, Inc. [member] | 12 Months Ended
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Dec. 31, 2021
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
Tax-exemption period, start date | 2018-01
Tax-exemption period, end date | 2022-12

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- Definition Tax exemption period end date. + References No definition available. + Details
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- Definition Tax exemption period start date. + References No definition available. + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with 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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