Operating Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 9,358	$ 7,741	$ 5,183
Operating lease ROU assets obtained in exchange for new operating lease liabilities	$ 35,262	$ 126	$ 9,932