STOCKHOLDERS' EQUITY - Schedule of Amounts Reclassified Out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2024	Apr. 30, 2023
Reclassifications Out of Accumulated Other Comprehensive Income (Loss)
Research and development, net	$ (36,730)	$ (31,782)
Selling, general and administrative	(93,276)	(101,279)
Total, before income taxes	23,334	7,997
(Provision for) benefit from income taxes	(7,955)	(4,363)
Net income	15,379	3,634
Recurring
Reclassifications Out of Accumulated Other Comprehensive Income (Loss)
Cost of revenue	(35,923)	(39,643)
Nonrecurring
Reclassifications Out of Accumulated Other Comprehensive Income (Loss)
Cost of revenue	(26,480)	(26,795)
Foreign currency forward contracts | Reclassification out of Accumulated Other Comprehensive Income
Reclassifications Out of Accumulated Other Comprehensive Income (Loss)
Research and development, net	21	(140)
Selling, general and administrative	9	(65)
Total, before income taxes	33	(227)
(Provision for) benefit from income taxes	(6)	39
Net income	27	(188)
Foreign currency forward contracts | Recurring | Reclassification out of Accumulated Other Comprehensive Income
Reclassifications Out of Accumulated Other Comprehensive Income (Loss)
Cost of revenue	0	(2)
Foreign currency forward contracts | Nonrecurring | Reclassification out of Accumulated Other Comprehensive Income
Reclassifications Out of Accumulated Other Comprehensive Income (Loss)
Cost of revenue	$ 3	$ (20)