Goodwill and Intangible Assets - Details of Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 30, 2022	Jan. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 177,042	$ 177,042
Accumulated amortization	(79,848)	(75,102)
Total	97,194	101,940
Existing technology
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	28,580	28,580
Accumulated amortization	(13,219)	(12,187)
Total	$ 15,361	$ 16,393
Remaining useful life (in years)	3 years 8 months 12 days	3 years 10 months 24 days
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 113,157	$ 113,157
Accumulated amortization	(41,624)	(38,829)
Total	$ 71,533	$ 74,328
Remaining useful life (in years)	6 years 9 months 18 days	7 years
Trade name/trademarks
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 13,900	$ 13,900
Accumulated amortization	(7,289)	(6,645)
Total	$ 6,611	$ 7,255
Remaining useful life (in years)	2 years 6 months	2 years 9 months 18 days
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 21,405	$ 21,405
Accumulated amortization	(17,716)	(17,441)
Total	$ 3,689	$ 3,964
Remaining useful life (in years)	3 years 7 months 6 days	3 years 9 months 18 days