Right-of-use assets (Tables)

12 Months Ended

Oct. 31, 2022

Disclosure Of Leases [Abstract]

Schedule of right-of-use assets

For the year ended October 31,					2022
	Premises		Equipment		Total
Cost
Balance, beginning of the year	$	28.8	$	0.1	$	28.9
Additions	29.3		0.4		29.7
Termination/derecognition	(1.2)		—		(1.2)
Balance, end of the year	56.9		0.5		57.4
Accumulated depreciation
Balance, beginning of the year	(1.9)		—		(1.9)
Depreciation	(6.3)		(0.1)		(6.4)
Termination/derecognition	1.0		—		1.0
Balance, end of the year	(7.2)		(0.1)		(7.3)
Carrying amounts	$	49.7	$	0.4	$	50.1

For the year ended October 31,					2021
	Premises		Equipment		Total
Cost
Balance, beginning of the year	$	4.4	$	0.1	$	4.5
Additions	24.2		—		24.2
Modifications	0.2		—		0.2
Balance, end of the year	28.8		0.1		28.9
Accumulated depreciation
Balance, beginning of the year	(0.6)		—		(0.6)
Depreciation	(1.3)		—		(1.3)
Balance, end of the year	(1.9)		—		(1.9)
Carrying amounts	$	26.9	$	0.1	$	27.0