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Pledged assets

12 Months Ended

Dec. 31, 2023

Disclosure assets pledged as collateral [abstract]

Pledged assets

36.Pledged assets

				Carrying amount
Assets		Purpose		December 31, 2022		December 31, 2023
				NT$000		NT$000
Non-current financial assets at amortized cost		Lease and bank loan		37,362		37,411
Property, plant and equipment, net
- Land		Bank loan		452,738		454,738
- Buildings		Bank loan		5,385,508		5,299,221
- Machinery and equipment		Bank loan		8,204,983		8,173,618
				14,080,591		13,964,988

X

- Definition

The disclosure of assets and liabilities used as collateral.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 10
-Subparagraph e
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_10_e&doctype=Standard
-URIDate 2023-03-23

+ Details

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X

- Definition

Disclosure assets pledged as collateral.

+ References

No definition available.

+ Details

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