XML 131 R116.htm IDEA: XBRL DOCUMENT
v3.23.1

Investment Properties - Additional Information (Detail) $ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 TWD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 TWD ($) | Dec. 31, 2020 TWD ($)
Disclosure of detailed information about investment property [line items] |  |  |  |
Adjustment to rent income | $ 114,538 | $ 3,727 | $ 3,865 | $ 54,139
Construction in progress [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Reclassification of buildings and land use right to investment properties | $ 9,722,579 |  |  |
Bottom of range [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Operating lease Term | 1 year | 1 year |  |
Top of range [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Operating lease Term | 20 years | 20 years |  |

X
- Definition Adjustment to rent income. + References No definition available. + Details
Name: | asx_AdjustmentToRentIncome
Namespace Prefix: | asx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Operating lease Term + References No definition available. + Details
Name: | asx_OperatingLeaseTerm
Namespace Prefix: | asx_
Data Type: | xbrli:durationItemType
Balance Type: | na
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_DisclosureOfInvestmentPropertyLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount transferred from (to) inventories and owner-occupied property to (from) investment property. [Refer: Inventories; Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2022-03-24 -Paragraph 76 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2022-en-r&anchor=para_76_f&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2022-03-24 -Paragraph 79 -Subparagraph d -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2022-en-r&anchor=para_79_d_vii&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_TransferFromToInventoriesAndOwnerOccupiedPropertyInvestmentProperty
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_ConstructionInProgressMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |