CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 1,121,183	$ 1,378,347
Restricted cash	175	0
Short-term investments (amortized cost of $729,328 and $612,344 in 2026 and 2025, respectively)	727,317	613,038
Accounts receivable, net of allowances	1,287,879	1,354,825
Inventories	494,620	437,797
Other current assets	120,435	100,754
Total current assets	3,751,609	3,884,761
Property, plant and equipment, net	4,150,783	3,870,808
Operating lease right of use assets	90,278	93,449
Goodwill	17,775	18,003
Restricted cash	67,804	67,776
Other assets	220,385	201,512
Total assets	8,298,634	8,136,309
Current liabilities:
Short-term borrowings and current portion of long-term debt	157,038	162,430
Trade accounts payable	832,101	912,766
Capital expenditures payable	488,731	243,543
Short-term operating lease liability	23,570	23,140
Accrued expenses	365,339	370,093
Total current liabilities	1,866,779	1,711,972
Long-term debt	1,257,156	1,282,816
Pension and severance obligations	67,947	69,218
Long-term operating lease liabilities	44,194	48,549
Other non-current liabilities	493,416	517,467
Total liabilities	3,729,492	3,630,022
Commitments and contingencies (Note 15)
Stockholders’ equity:
Preferred stock, $0.001 par value, 10,000 shares authorized, designated Series A, none issued	0	0
Common stock, $0.001 par value, 500,000 shares authorized; 294,394 and 293,756 shares issued; and 247,828 and 247,303 shares outstanding in 2026 and 2025, respectively	294	294
Additional paid-in capital	2,060,642	2,054,051
Retained earnings	2,689,683	2,627,038
Accumulated other comprehensive income (loss)	15,277	16,833
Treasury stock, at cost, 46,566 and 46,453 shares in 2026 and 2025, respectively	(232,385)	(227,110)
Total Amkor stockholders’ equity	4,533,511	4,471,106
Non-controlling interests in subsidiaries	35,631	35,181
Total equity	4,569,142	4,506,287
Total liabilities and equity	$ 8,298,634	$ 8,136,309

Amount owed for capital expenditures.

No definition available.

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

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).