Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Revenue (note 3)	$ 901,309	$ 782,118	$ 557,723
Cost of revenue, including cost of revenue from related parties of $62,498, $39,313, and $31,240 for the years ended December 31, 2025, 2024, and 2023, respectively (note 13)	501,242	390,564	281,508
Gross profit	400,067	391,554	276,215
Operating expenses:
Sales and marketing	76,899	65,447	47,019
Research and development	144,989	105,473	92,709
General and administrative	68,750	69,636	40,648
Total operating expenses	290,638	240,556	180,376
Loss from operations	109,429	150,998	95,839
Interest income	14,639	9,935	8,354
Interest expense	(6,955)	(4,151)	(2,681)
Realized gain from sale of short-term investments	166	1,788	9,047
Unrealized gain (loss) on short-term investments	17,455	973	(2,737)
Other (expense) income, net	(9,832)	6,334	(1,558)
Income from equity method investments	10,290	423	9,952
Income before income taxes	135,192	166,300	116,216
Income tax expense (note 16)	(13,299)	(35,031)	(19,364)
Net income	121,893	131,269	96,852
Less: Net income attributable to non-controlling interests	27,815	27,642	19,503
Net income attributable to ACM Research, Inc.	94,078	103,627	77,349
Comprehensive income:
Net income	121,893	131,269	96,852
Foreign currency translation adjustment, net of tax	33,335	(15,728)	(10,617)
Unrealized gain on available-for-sale investments, net of tax	2,391	428	0
Comprehensive income	157,619	115,969	86,235
Less: Comprehensive income attributable to non-controlling interests	35,909	26,365	17,689
Comprehensive income attributable to ACM Research, Inc.	$ 121,710	$ 89,604	$ 68,546
Net income per common stock (note 2):
Basic (in dollars per share)	$ 1.47	$ 1.67	$ 1.29
Diluted (in dollars per share)	$ 1.37	$ 1.53	$ 1.16
Weighted average common stock outstanding used in computing per share amounts (note 2):
Basic (in shares)	64,184,776	62,212,569	60,164,670
Diluted (in shares)	67,311,893	66,237,424	64,870,543