XML 42 R21.htm IDEA: XBRL DOCUMENT
v3.22.1

Accounts payable | 12 Months Ended
--- | ---
Dec. 31, 2021
Disclosure Of Detailed Information Of Trade And Other Payable Explanatory [Abstract] |
Accounts payable |
16. | Accounts payable
|  | December 31, 2020 |  |  | December 31, 2021 |
|  | NT$000 |  |  | NT$000 |
Accounts payable |  |  | 766,805 |  |  |  | 765,403 |
Estimated accounts payable |  |  | 200,016 |  |  |  | 246,988 |
|  |  | 966,821 |  |  |  | 1,012,391 |

X
- Definition The disclosure of trade and other payables. [Refer: Trade and other payables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_10_e&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure Of Detailed Information Of Trade And Other Payable Explanatory + References No definition available. + Details
Name: | imos_DisclosureOfDetailedInformationOfTradeAndOtherPayableExplanatoryAbstract
Namespace Prefix: | imos_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration