XML 106 R88.htm IDEA: XBRL DOCUMENT
v3.22.1

Trade Receivables, Net - Additional Information (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2021
Bottom of range [member] |
Disclosure of financial assets [Line Items] |
Average credit terms | 30 days
Top of range [member] |
Disclosure of financial assets [Line Items] |
Average credit terms | 90 days

X
- Definition Average credit terms. + References No definition available. + Details
Name: | asx_AverageCreditTerms
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_DisclosureOfFinancialAssetsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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: |