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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2020
Text block [abstract] |
Summary of Revenue from Contracts with Customers |
|  | Year ended December 31, |
|  | 2018 |  |  | 2019 |  |  | 2020 |
|  | NT$000 |  |  | NT$000 |  |  | NT$000 |
Revenue from contracts with customers |  |  | 18,480,027 |  |  |  | 20,337,881 |  |  |  | 23,011,381 |
Summary of Contract Assets and Liabilities | The Group has recognized the following contract assets and liabilities in relation to revenue from contracts with customers:
|  | January 1, 2019 |  |  | December 31, 2019 |  |  | December 31, 2020 |
|  | NT$000 |  |  | NT$000 |  |  | NT$000 |
Contract assets |  |  | 299,835 |  |  |  | 377,869 |  |  |  | 389,016 |
Contract liabilities (Advance payments) |  |  | 1,432 |  |  |  | 1,231 |  |  |  | — |

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- Definition The entire disclosure for revenue from contracts with customers. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2020-01-01 -Section Presentation -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&doctype=Standard&dita_xref=IFRS15_g105-109_TI -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2020-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2020-en-r&doctype=Standard&dita_xref=IFRS15_g110-129_TI -URIDate 2020-01-01 + Details
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