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Commitments and Contingencies (Details) - Nanium Acquisition $ in Millions	Jun. 30, 2025 USD ($)
Gain Contingencies [Line Items]
Proceeds from acquisition receivable subject to bankruptcy proceedings	$ 72.8
Insolvency payments remitted to shareholders	$ 40.4

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- Definition

Insolvency Payments Remitted To Shareholders

+ References

No definition available.

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Balance Type:	credit
Period Type:	instant

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- Definition

Proceeds From Acquisition Receivable Subject To Bankruptcy Proceedings

+ References

No definition available.

+ Details

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Namespace Prefix:	amkr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483049/450-30-50-1

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- Details

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