Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Income Statement [Abstract]
Revenue (note 3)	$ 292,919	$ 215,372	$ 524,182	$ 387,719
Cost of revenue, including cost of revenue from related parties of $19,569 and $32,052 for the three and six months ended June 30, 2026, respectively and $16,518 and $25,917 for the three and six months ended June 30, 2025 respectively.	158,301	110,911	282,326	200,708
Gross profit	134,618	104,461	241,856	187,011
Operating expenses:
Sales and marketing	23,778	22,102	44,466	38,445
Research and development	42,254	33,817	78,803	61,320
General and administrative	18,843	16,848	32,667	29,775
Total operating expenses	84,875	72,767	155,936	129,540
Income from operations	49,743	31,694	85,920	57,471
Interest income	7,142	4,013	11,861	7,352
Interest expense	(2,059)	(1,757)	(3,992)	(3,315)
Realized gain on short-term investments (note 11)	0	54	0	54
Unrealized gain on short-term investments (note 11)	69,592	2,730	68,186	1,648
Other expense, net	(9,793)	(346)	(19,093)	(608)
Income from equity method investments	21,097	1,773	22,846	2,725
Income before income taxes	135,722	38,161	165,728	65,327
Income tax expense (note 15)	(13,472)	(1,891)	(17,243)	(4,044)
Net income	122,250	36,270	148,485	61,283
Less: Net income attributable to non-controlling interests	33,266	6,510	42,194	11,143
Net income attributable to ACM Research, Inc.	88,984	29,760	106,291	50,140
Comprehensive income:
Net income	122,250	36,270	148,485	61,283
Foreign currency translation adjustment, net of tax of nil	30,141	3,905	57,938	5,655
Unrealized gain on available-for-sale investments, net of tax	675	0	675	0
Comprehensive income	153,066	40,175	207,098	66,938
Less: Comprehensive income attributable to non-controlling interests	41,477	7,250	57,644	12,207
Comprehensive income attributable to ACM Research, Inc.	$ 111,589	$ 32,925	$ 149,454	$ 54,731
Net income attributable to ACM Research, Inc. per share of common stock (note 2):
Basic (in dollars per share)	$ 1.31	$ 0.47	$ 1.59	$ 0.79
Diluted (in dollars per share)	$ 1.23	$ 0.44	$ 1.49	$ 0.74
Weighted average shares of common stock outstanding used in computing per share amounts (note 2):
Basic (in shares)	67,890,917	63,968,763	66,853,350	63,620,235
Diluted (in shares)	71,838,908	67,464,856	70,678,872	67,138,338