STOCK-BASED COMPENSATION STOCK-BASED COMPENSATION - AMENDED AND RESTATED PLAN (Details) - 2017 Amended Plan
Apr. 30, 2018
shares
Stock-Based Compensation Plans  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 7,975,000
Reduction in Amended 2017 Plan Capacity From Awards Other Than Options or SARs 2.47