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Inventories Related to Real Estate Business - Summary of Inventories Related to Real Estate Business (Detail) $ in Thousands, $ in Thousands | Dec. 31, 2018 USD ($) | Dec. 31, 2018 TWD ($) | Dec. 31, 2017 TWD ($)
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Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |
Inventories related to real estate business | $ 328,671 | $ 10,060,608 | $ 9,819,516
Land and buildings held for sale [member] |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |
Inventories related to real estate business | 677 | 20,734 | 25,825
Construction in progress and machinery in transit [member] |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |
Inventories related to real estate business | 269,597 | 8,252,348 | 8,106,166
Land held for construction [member] |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |
Inventories related to real estate business | $ 58,397 | $ 1,787,526 | $ 1,687,525

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- Definition Inventories related to real estate business. + 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 domain 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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- Details
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