Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenue (note 3)	$ 168,569	$ 133,709	$ 387,402	$ 280,290
Cost of revenue (note 16)	80,055	67,742	190,263	150,480
Gross profit	88,514	65,967	197,139	129,810
Operating expenses:
Sales and marketing	16,803	13,133	37,579	27,494
Research and development	26,151	15,678	60,244	44,391
General and administrative	12,387	5,520	26,851	15,560
Total operating expenses	55,341	34,331	124,674	87,445
Income from operations	33,173	31,636	72,465	42,365
Interest income	2,152	2,016	6,283	5,965
Interest expense	(640)	(419)	(1,984)	(986)
Realized gain from sale of short-term investments	656	1,136	8,569	1,136
Unrealized loss on short-term investments	(1,319)	(5,281)	(4,428)	(9,562)
Other income (expense), net	(2,150)	7,207	156	9,949
Income (loss) from equity method investments	(160)	1,251	3,728	1,652
Income before income taxes	31,712	37,546	84,789	50,519
Income tax expense (note 19)	(718)	(10,470)	(11,235)	(14,138)
Net income	30,994	27,076	73,554	36,381
Less: Net income attributable to non-controlling interests	5,315	6,072	13,905	8,927
Net income attributable to ACM Research, Inc.	25,679	21,004	59,649	27,454
Net income available to common stockholders, diluted	25,218	20,683	58,311	26,989
Comprehensive income (loss):
Net income	30,994	27,076	73,554	36,381
Foreign currency translation adjustment, net of tax	4,015	(42,416)	(21,831)	(80,334)
Comprehensive income (loss)	35,009	(15,340)	51,723	(43,953)
Less: Comprehensive income (loss) attributable to non-controlling interests	7,768	(1,057)	11,882	(4,378)
Comprehensive income (loss) attributable to ACM Research, Inc.	$ 27,241	$ (14,283)	$ 39,841	$ (39,575)
Net income attributable to ACM Research, Inc. per share of common stock (note 2):
Basic (in dollars per share)	$ 0.43	$ 0.35	$ 0.99	$ 0.46
Diluted (in dollars per share)	$ 0.39	$ 0.32	$ 0.90	$ 0.41
Weighted average shares of common stock outstanding used in computing per share amounts (note 2):
Basic (in shares)	60,219,218	59,360,790	59,953,144	59,123,895
Diluted (in shares)	65,450,941	65,612,665	64,834,051	65,629,273