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Significant events after the reporting periods | 12 Months Ended
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Dec. 31, 2022
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Significant events after the reporting periods | 39. Significant events after the reporting period None.

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- Definition The entire disclosure for events after the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 10 -IssueDate 2022-03-24 -Section Disclosure -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=10&code=ifrs-tx-2022-en-r&doctype=Standard&dita_xref=IAS10_g17-22_IAS10_g17-22_TI -URIDate 2022-03-24 + Details
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Balance Type: | na
Period Type: | duration

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- Definition Text block [abstract] + References No definition available. + Details
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Namespace Prefix: | imos_
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Period Type: | duration