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Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2024

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Share

The following table summarizes the computations of basic and diluted EPS:

			For the Year Ended December 31,
			2024						2023						2022
			(In thousands, except per share data)
Net income attributable to Amkor common stockholders			$	354,012					$	359,813					$	765,823
Weighted-average number of common shares outstanding — basic			246,344						245,628						244,676
Effect of dilutive securities:
Share-based awards			1,474						1,548						1,529
Weighted-average number of common shares outstanding — diluted			247,818						247,176						246,205
Net income attributable to Amkor per common share:
Basic			$	1.44					$	1.46					$	3.13
Diluted			$	1.43					$	1.46					$	3.11

Schedule of Antidilutive Effect of Potential Shares of Common Stock that were Excluded from Diluted Earnings Per Share

The following table summarizes the potential shares of common stock that were excluded from diluted EPS, because the effect of including these potential shares was anti-dilutive:

			For the Year Ended December 31,
			2024						2023						2022
			(In thousands)
Share-based awards			—						2						180

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- References

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482662/260-10-50-1

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482662/260-10-50-1

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