CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Oct. 31, 2024	Jun. 30, 2023	Oct. 31, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (6,433)	$ 55,759	$ 7,028	$ 68,154	$ 15,306
Change in unrealized gains (losses) on available-for-sale securities	466	(270)	298	(488)	673
Comprehensive income (loss)	(5,967)	55,489	7,326	67,666	15,979
Comprehensive income (loss) attributable to noncontrolling interests	(6,756)	28,602	0	13,837	0
Comprehensive income attributable to Immersion stockholders	$ 789	$ 26,887	$ 7,326	$ 53,829	$ 15,979