CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income including noncontrolling interest through December 1, 2021	$ 385,005	$ 12,540	$ 406,442	$ 21,307
Other comprehensive income, net of tax
Foreign currency translation adjustment	1,587	6,814	1,487	12,517
Cumulative translation adjustment removal due to deconsolidation of the JV Company	(3,642)	0	(3,642)	0
Comprehensive income	382,950	19,354	404,287	33,824
Less: Noncontrolling interest	921	2,824	(1,080)	4,739
Comprehensive income attributable to Alpha and Omega Semiconductor Limited	$ 382,029	$ 16,530	$ 405,367	$ 29,085