CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 12.1	$ 6.2	$ 21.1	$ (9.1)
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	0.1	0.7	0.6	1.5
Total comprehensive income (loss), net of tax	12.2	6.9	21.7	(7.6)
Less: Comprehensive (loss) income attributable to noncontrolling interest	(0.3)	(0.4)	1.7	(2.3)
Comprehensive income (loss)	$ 12.5	$ 7.3	$ 20.0	$ (5.3)