Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenue (note 3)		$ 74,256	$ 42,186
Cost of revenue		34,270	22,500
Gross profit		39,986	19,686
Operating expenses:
Sales and marketing		9,337	6,697
Research and development		14,029	17,346
General and administrative		7,758	4,949
Income (loss) from operations		31,124	28,992
Income (loss) from operations		8,862	(9,306)
Interest income		1,785	1,805
Interest expense		(695)	(261)
Realized gain from sale of trading securities		3,994	0
Unrealized loss on trading securities		(654)	(3,858)
Other income (expense), net		(1,418)	237
Equity loss in net loss of affiliates		(32)	(71)
Income (loss) before income taxes		11,842	(11,454)
Income tax benefit (expense) (note 19)		(2,879)	4,011
Net income (loss)		8,963	(7,443)
Less: Net income (loss) attributable to non-controlling interests		1,818	(1,657)
Net income (loss) attributable to ACM Research, Inc.		7,145	(5,786)
Comprehensive income (loss):
Net income (loss)		8,963	(7,443)
Foreign currency translation adjustment, net of tax		9,423	2,454
Comprehensive income (loss)		18,386	(4,989)
Less: Comprehensive income (loss) attributable to non-controlling interests		3,462	(1,073)
Comprehensive income (loss) attributable to ACM Research, Inc.		$ 14,924	$ (3,916)
Net income (loss) attributable to ACM Research, Inc. per share of common stock (note 2):
Basic (in dollars per share)		$ 0.12	$ (0.10)
Diluted (in dollars per share)	[1]	$ 0.11	$ (0.10)
Weighted average shares of common stock outstanding used in computing per share amounts (note 2):
Basic (in shares)	[2]	59,736,764	58,827,390
Weighted Average Number of Shares Outstanding, Diluted	[1],[2]	65,058,777	58,827,390

[1] Weighted average diluted shares of common stock outstanding and net income (loss) attributable to ACM research, Inc. per diluted share of common stock for the first quarter of 2022 was incorrectly reported as 65,950,922 and ($0.09), respectively, in the prior year filing.

[2] Prior period results reflect the three-for-one stock split effected in the form of a stock dividend in March 2022. See Note 1 for details.