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v3.21.1

Guarantee Deposits (Tables) | 12 Months Ended
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Dec. 31, 2020
Text Block [Abstract] |
Summary of Guarantee Deposits |
|  | December 31, 2019 |  |  | December 31, 2020 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |  |  | (In Millions) |
Capacity guarantee |  | $ | 1,499.4 |  |  | $ | — |
Others |  |  | 230.5 |  |  |  | 350.0 |
|  | $ | 1,729.9 |  |  | $ | 350.0 |
Current portion (classified under accrued expenses and other current liabilities) |  | $ | 1,553.0 |  |  | $ | 84.4 |
Noncurrent portion |  |  | 176.9 |  |  |  | 265.6 |
|  | $ | 1,729.9 |  |  | $ | 350.0 |

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