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Other income

12 Months Ended

Dec. 31, 2023

Other Income [Abstract]

Other income

26.Other income

		Year ended December 31,
		2021		2022		2023
		NT$000		NT$000		NT$000
Rental income		17,326		35,848		48,264
Grant income		12,480		21,327		22,727
Dividend income		4,690		9,816		6,592
		34,496		66,991		77,583

X

- 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

X

- Definition

Other income.

+ References

No definition available.

+ Details

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Namespace Prefix:	imos_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration