RESTRUCTURING - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025	Dec. 31, 2026	Jul. 31, 2026	Jul. 31, 2025
Restructuring Cost and Reserve [Line Items]
Restructuring charges, including writeoffs		$ 24,400			$ 24,400	$ 5,200
Charges		24,425	$ 3,883		24,457	9,050
Severance payments and employee benefits
Restructuring Cost and Reserve [Line Items]
Charges		13,600			13,604	3,000
Severance payments and employee benefits | Forecast
Restructuring Cost and Reserve [Line Items]
Charges				$ 3,200
Inventory Write-offs
Restructuring Cost and Reserve [Line Items]
Charges		$ 10,800			$ 10,800	$ 2,200
Contract Termination
Restructuring Cost and Reserve [Line Items]
Charges	$ 3,900