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v3.23.1

Other income | 12 Months Ended
--- | ---
Dec. 31, 2022
Text block [abstract] |
Other income | 26. Other income
|  | Year ended December 31,
|  | 2020 |  | 2021 |  | 2022
|  | NT$000 |  | NT$000 |  | NT$000
Rental income |  | 10,260 |  | 17,326 |  | 35,848
Grant income |  | 7,668 |  | 12,480 |  | 21,327
Dividend income |  | 3,229 |  | 4,690 |  | 9,816
|  | 21,157 |  | 34,496 |  | 66,991

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- Definition Disclosure of other non operating income expenses. + References No definition available. + Details
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Namespace Prefix: | imos_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- Definition Text block [abstract] + References No definition available. + Details
Name: | imos_TextBlockAbstract
Namespace Prefix: | imos_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration