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v3.20.1

Lease Arrangements - Additional Information (Details) - Taiwan [Member] | 12 Months Ended
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Dec. 31, 2019
Bottom of Range [Member] | Handsets Base Stations [Member] |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |
Lease Term | 1 year
Bottom of Range [Member] | Offices, Server rooms and Stores [Member] |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |
Lease Term | 1 year
Top of Range [Member] | Handsets Base Stations [Member] |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |
Lease Term | 20 years
Top of Range [Member] | Offices, Server rooms and Stores [Member] |
Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] |
Lease Term | 30 years

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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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- Details
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