RESTRUCTURING - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 12,265	$ 0	$ 6,706
Restructuring charges, including writeoffs	5,200	7,400
July Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	7,100
Partially offset related to reversal of stock based compensation expense	500
Contract Termination | July Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3,900
Employee Severance and Employee Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3,000	5,400
Employee Severance and Employee Benefits | July Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3,700
Inventory Write-offs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2,200	700
Excess Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring charges		2,400
Stock-Based Compensation
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 1,100