XML 45 R35.htm IDEA: XBRL DOCUMENT
v3.25.1

Debt (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Debt Disclosure [Abstract] |
Schedule of Short-Term Borrowings and Long-Term Debt | Short-term borrowings and long-term debt consist of the following:
| March 31, 2025 |  | December 31, 2024
| (In thousands)
Debt of Amkor Technology, Inc.: |  |  |
Senior notes: |  |  |
6.625% Senior notes, due September 2027 | $ | 525,000 |  |  | $ | 525,000 |
Debt of subsidiaries: |  |  |
Amkor Technology Korea, Inc.: |  |  |
Term loan, fixed rate at 3.95%, due May 2027 (1) | — |  |  | — |
Term loan, fixed rate at 2.12%, due December 2028 | 200,000 |  |  | 200,000 |
Amkor Technology Japan, Inc.: |  |  |
Short-term term loans, variable rate (2) | — |  |  | — |
Term loan, fixed rate at 1.20%, due December 2025 | 10,903 |  |  | 13,868 |
Term loan, fixed rate at 1.23%, due December 2026 | 30,575 |  |  | 33,333 |
Term loan, fixed rate at 1.59%, due December 2027 | 57,582 |  |  | 59,923 |
Term loan, fixed rate at 1.80%, due December 2028 | 87,523 |  |  | 89,059 |
Term loan, fixed rate at 2.05%, due December 2029 | 108,329 |  |  | 108,779 |
Amkor Assembly & Test (Shanghai) Co., Ltd.: |  |  |
Term loans, SOFR plus 0.75%, weighted average of 5.06% as of March 31, 2025, due June 2025 | 35,000 |  |  | 35,000 |
Term loans, SOFR plus 0.75%, weighted average of 5.06% as of March 31, 2025, due 2025 | 55,000 |  |  | 55,500 |
Term loans, SOFR plus 0.95%, weighted average of 5.25% as of March 31, 2025, due December 2026 | 44,000 |  |  | 44,000 |
Other: |  |  |
Senior secured revolving credit facility, applicable bank rate plus 1.75%, due March 2027 (Singapore) (3) | — |  |  | — |
| 1,153,912 |  |  | 1,164,462 |
Less: Unamortized discount and deferred debt costs, net | (4,590) |  |  | (5,002) |
Less: Short-term borrowings and current portion of long-term debt | (236,459) |  |  | (236,029) |
Long-term debt | $ | 912,863 |  |  | $ | 923,431 |
(1)In April 2021, we entered into a ₩80 billion term loan agreement with the option to borrow and re-borrow the funds up to six times per year through April 2024 at a fixed rate of 1.85%. In May 2024, we replaced this loan by entering into a ₩80.0 billion (approximately $59 million) term loan agreement with the option to borrow and re-borrow the funds up to six times per year through May 2027. Principal is payable at maturity, and interest is payable monthly, at a fixed rate of 3.95%. As of March 31, 2025, ₩80.0 billion, or approximately $54 million, was available to be drawn. (2)We entered into various short-term term loans which mature semiannually. Principal and interest are payable in monthly installments. As of March 31, 2025, $3.3 million was available to be drawn. (3)In March 2022, Amkor Technology Singapore Holdings Pte. Ltd. (“ATSH”) entered into a $600.0 million senior secured revolving credit facility (the “2022 Singapore Revolver”), which is guaranteed by Amkor Technology, Inc., Amkor Technology Taiwan Ltd. (“ATT”) and Amkor Advanced Technology, Inc. (“AATT”). The maximum borrowing capacity under the 2022 Singapore Revolver is limited to a base amount equal to the lesser of: (1) $600.0 million; or (2) $250.0 million plus a variable amount equal to 37.5% of our consolidated accounts receivable balance. As of March 31, 2025, $600.0 million was available for future borrowings under the 2022 Singapore Revolver.

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

X
- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
Name: | us-gaap_ScheduleOfDebtTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration