Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2021	Oct. 31, 2020	Jan. 31, 2021
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 2,249	$ 926	$ 2,411	$ 2,142
Unrecognized tax benefits					$ 17,500