REVENUE - Performance Obligation (Details) - USD ($) $ in Millions	Apr. 30, 2026	Apr. 30, 2025
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred revenue	$ 2.9	$ 12.5
Fixed fee license revenue \| Performance Obligation B
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred revenue	5.8
Fixed fee license revenue \| Performance Obligation B \| One to three years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred revenue	5.5
Fixed fee license revenue \| Performance Obligation B \| More than three years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred revenue	$ 0.3