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Financial Assets at Fair Value Through Other Comprehensive Income - Summary of Investments in Debt Instruments at Fair Value Through Other Comprehensive Income (Detail) $ in Thousands, $ in Thousands | Dec. 31, 2019 TWD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 TWD ($)
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Financial assets at fair value through other comprehensive income [line items] |  |  |
Investments in debt instruments at FVTOCI | $ 1,014,872 | $ 33,931 | $ 1,016,924
Unsecured subordinate corporate bonds [member] |  |  |
Financial assets at fair value through other comprehensive income [line items] |  |  |
Investments in debt instruments at FVTOCI | $ 1,014,872 | $ 33,931 | $ 1,016,924

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- Definition Financial assets at fair value through other comprehensive income [line items] + References No definition available. + Details
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- Details
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