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Leases (Narrative) (Details) $ in Millions | Dec. 31, 2023 USD ($)
--- | ---
Leases [Abstract] |
Amount of leases not yet commenced | $ 8

X
- Definition Lessee, Lease Not Yet Commenced, Liability + References No definition available. + Details
Name: | amkr_LesseeLeaseNotYetCommencedLiability
Namespace Prefix: | amkr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration