Other income (expense)

12 Months Ended

Oct. 31, 2022

Financial Instruments [Abstract]

Other income (expense)

Other income (expense)

The following table summarizes the Company's other income (expense):

For the years ended October 31,	2022		2021		2020
Interest income on short-term investments	$	7.0	$	0.1	$	—
Interest income	7.0		0.1		—
Interest expense and accretion on convertible debt	(15.0)		(1.2)		—
Interest expense and accretion on promissory notes	—		(0.1)		—
Interest expense and accretion on loans	—		(1.3)		—
Interest expense on leases	(2.2)		(0.4)		(0.2)
Other finance costs	(0.2)		—		(0.3)
Foreign exchange gains (losses)	0.4		(0.8)		0.4
Interest expense and other costs	(17.0)		(3.8)		(0.1)
Fair value gain (loss) on embedded derivatives	31.3		(1.3)		—
Fair value gain (loss) on warrants	36.2		(33.8)		—
Fair value gain (loss) on restricted share units	—		(3.2)		(0.1)
Gains (losses) on financial instruments	67.5		(38.3)		(0.1)
Excess of fair value over consideration transferred related to business combination	—		(152.7)		—

Excess of fair value over consideration transferred	—		(152.7)		—
Total	$	57.5	$	(194.7)	$	(0.2)