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Share-Based Compensation Plans and Capital Stock Transactions - Restricted Stock Awards (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jan. 28, 2023	Jan. 29, 2022	Jan. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Total fair value of shares vested during the period	$ 14.2	$ 6.2	$ 3.3
Granted (in usd per share)	$ 4.81	$ 2.98	$ 3.37
Unrecognized compensation expense	$ 10.1
Period for recognition	1 year 9 months 18 days
Restricted Stock \| Share-based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	50.00%
Restricted Stock \| Share-based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	30.00%
Restricted Stock \| Share-based Payment Arrangement, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%
Restricted Stock \| Share-based Payment Arrangement, Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Vesting percentage	100.00%
Total fair value of shares vested during the period	$ 1.5	$ 0.1
Granted (in usd per share)	$ 4.74	$ 2.56
Unrecognized compensation expense	$ 0.4
Period for recognition	1 year 4 months 24 days
Restricted Stock Units \| Share-based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	50.00%
Restricted Stock Units \| Share-based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	30.00%
Restricted Stock Units \| Share-based Payment Arrangement, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	20.00%