XML 206 R190.htm IDEA: XBRL DOCUMENT
v3.25.1

Business Combinations - Summary of Net Cash Outflow on Acquisition of Subsidiary (Detail) $ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 TWD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 TWD ($) | Dec. 31, 2024 USD ($)
Disclosure of detailed information about business combination [Line Items] |  |  |  |
Less: Cash and cash equivalent acquired |  |  | $ (261,238) |
Net cash outflow on acquisition of subsidiaries |  |  | $ 2,354,938 |
HIRSCHMANN [member] |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |
Consideration paid in Cash | $ 2,317,201 |  |  |
Less: Cash and cash equivalent acquired | (118,419) |  |  |
Net cash outflow on acquisition of subsidiaries | 2,198,782 |  |  |
ASEPCAYMAN [Member] |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |
Consideration paid in Cash | 725,059 |  |  | $ 22,112
Less: Cash and cash equivalent acquired | (404,573) | $ (12,338) |  |
Net cash outflow on acquisition of subsidiaries | 320,486 | 9,774 |  |
CHE [Member] |  |  |  |
Disclosure of detailed information about business combination [Line Items] |  |  |  |
Consideration paid in Cash | 1,713,092 |  |  | $ 52,245
Less: Cash and cash equivalent acquired | (1,381,103) | (42,120) |  |
Net cash outflow on acquisition of subsidiaries | $ 331,989 | $ 10,125 |  |

X
- Definition The amount of cash and cash equivalents in subsidiaries or other businesses over which control is obtained or lost. [Refer: Total for all subsidiaries [member]; Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 40 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_40_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Total for all business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B64 -Subparagraph f -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B64_f_i&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
Name: | ifrs-full_CashTransferred
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of consideration paid or received in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2024-01-01 -Paragraph 40 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_40_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ConsiderationPaidReceived
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

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

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=asx_AsepcaymanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=asx_CHEMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |