Income Taxes (Details)	3 Months Ended		9 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2021	Oct. 31, 2020
Income Tax Disclosure [Abstract]
Effective income tax rate reconciliation, percent	(0.40%)	(0.20%)	(0.30%)	(0.30%)