XML 98 R80.htm IDEA: XBRL DOCUMENT v3.25.1

Pledged assets (Tables)

12 Months Ended

Dec. 31, 2024

Disclosure assets pledged as collateral [abstract]

Certain Assets Provided as Collateral Mainly for Long-term Bank Loans and Leases

				Carrying amount
Assets		Purpose		December 31, 2023		December 31, 2024
				NT$000		NT$000
Non-current financial assets at amortized cost		Lease		37,411		43,034
Property, plant and equipment, net
- Land		Bank loan		454,738		454,738
- Buildings		Bank loan		5,299,221		5,722,487
- Machinery and equipment		Bank loan		8,173,618		7,172,859
				13,964,988		13,393,118

X

- Definition

Disclosure assets pledged as collateral.

+ References

No definition available.

+ Details

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

X

- Definition

Disclosure details of assets pledged as collateral.

+ References

No definition available.

+ Details

Name:	imos_DisclosureDetailsOfAssetsPledgedAsCollateralExplanatory
Namespace Prefix:	imos_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration