REVENUES FROM CONTRACTS WITH CUSTOMERS - Remaining Unsatisfied Performance Obligations (Details) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-02-01 $ in Millions	Apr. 30, 2022 USD ($)
REVENUES FROM CONTRACTS WITH CUSTOMERS
Contract backlog amount	$ 339.2
Contract backlog (as percent)	74.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	3 years