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Stock-Based Compensation - Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Apr. 30, 2021	Jan. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Target shares earned	100.00%	115.00%
Performance Awards vested	Mar. 25, 2021
Performance Awards vested percentage	111.00%
Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Target shares earned	50.00%
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Target shares earned	200.00%
Deferred Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years
Compensation expense not yet recognized	$ 12,100,000
Compensation expense not yet recognized, recognition period	2 years 4 months 24 days
Performance Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years
Compensation expense not yet recognized	$ 6,100,000
Compensation expense not yet recognized, recognition period	2 years 6 months
Performance awards period considered	3 years
Option Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	4 years
Options awards expiration period	10 years
Compensation expense not yet recognized	$ 0
Compensation expense unvested option award fully vested date	May 08, 2021
Options awards exercisable	330,880
Options exercised	0

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