FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS, Contingent Consideration Level 3 Valuation Inputs (Details) - Fair Value, Inputs, Level 3 [Member]	Oct. 31, 2019
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2019 Acquisition [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input	(0.07)
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2019 Acquisition [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.09
Measurement Input, Long-term Revenue Growth Rate [Member] | FY 2017 Acquisition [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input	(0.03)
Measurement Input, Long-term Revenue Growth Rate [Member] | FY 2017 Acquisition [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.10
Measurement Input, Long-term Revenue Growth Rate [Member] | FY 2016 Acquisition [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input	(0.11)
Measurement Input, Long-term Revenue Growth Rate [Member] | FY 2016 Acquisition [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.03
Measurement Input, Discount Rate [Member] | FY2019 Acquisition [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.057
Measurement Input, Discount Rate [Member] | FY 2017 Acquisition [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.046
Measurement Input, Discount Rate [Member] | FY 2016 Acquisition [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability, Measurement Input	0.030