v3.24.1

Business Combinations - Summary of Consideration Transferred in business combination (Detail) - Dec. 31, 2023 $ in Thousands, $ in Thousands	TWD ($)	USD ($)
ITGEU [member]
Disclosure of detailed information about business combination [line items]
Cash	$ 50,368
Cash	83,482
ITGEU [member] | Consideration transferred [member]
Disclosure of detailed information about business combination [line items]
Cash	50,368
SER [Member]
Disclosure of detailed information about business combination [line items]
Cash	217,919
Cash	217,919
SER [Member] | Consideration transferred [member]
Disclosure of detailed information about business combination [line items]
Cash	217,919
Hirschmann [member]
Disclosure of detailed information about business combination [line items]
Cash	1,342,602	$ 43,847
Cash	2,011,448	65,691
Hirschmann [member] | Consideration transferred [member]
Disclosure of detailed information about business combination [line items]
Cash	$ 2,016,595
Cash		$ 65,859

X

- Definition

The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph f
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_f_i&doctype=Appendix&subtype=B
-URIDate 2023-03-23

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount recognised as of the acquisition date for net identifiable assets acquired or liabilities assumed in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_i&doctype=Appendix&subtype=B
-URIDate 2023-03-23

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph IE72
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_IE72&doctype=Illustrative%20Examples
-URIDate 2023-03-23

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=asx_HirschmannMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: