Goodwill and Intangible Assets - Details of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 177,042	$ 171,176
Accumulated amortization	(75,102)	(56,581)
Net	101,940	114,595
Existing technology
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	28,580	26,180
Accumulated amortization	(12,187)	(8,367)
Net	$ 16,393	$ 17,813
Remaining useful life (in years)	3 years 10 months 24 days	4 years 9 months 18 days
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 113,157	$ 110,643
Accumulated amortization	(38,829)	(27,741)
Net	$ 74,328	$ 82,902
Remaining useful life (in years)	7 years	8 years
Trade name and trademarks
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 13,900	$ 13,900
Accumulated amortization	(6,645)	(4,005)
Net	$ 7,255	$ 9,895
Remaining useful life (in years)	2 years 9 months 18 days	3 years 9 months 18 days
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 21,405	$ 20,453
Accumulated amortization	(17,441)	(16,468)
Net	$ 3,964	$ 3,985
Remaining useful life (in years)	3 years 9 months 18 days	5 years 1 month 6 days