Income Taxes - Schedule of Reconciliation of Unrecognized Tax Benefit (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Income Tax Disclosure [Abstract]
Unrecognized tax benefits—beginning of period	$ 77,427	$ 63,560	$ 49,883
Reductions for tax positions related to prior year		(57)	(10)
Additions for tax positions related to prior year	40	48
Additions for tax positions related to current year	13,211	13,876	13,687
Unrecognized tax benefits—end of period	$ 90,678	$ 77,427	$ 63,560