FAIR VALUE MEASUREMENTS (Level 3 Valuation Inputs) (Details) - Fair Value, Inputs, Level 3 [Member]	Apr. 30, 2019
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2019 Acquisition [Member] | Minimum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Contingent Consideration, Liability, Measurement Input	(0.08)
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2019 Acquisition [Member] | Maximum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Contingent Consideration, Liability, Measurement Input	0.09
Measurement Input, Long-term Revenue Growth Rate [Member] | FY 2017 Acquisition [Member] | Minimum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Contingent Consideration, Liability, Measurement Input	(0.05)
Measurement Input, Long-term Revenue Growth Rate [Member] | FY 2017 Acquisition [Member] | Maximum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Contingent Consideration, Liability, Measurement Input	0.12
Measurement Input, Long-term Revenue Growth Rate [Member] | FY 2016 Acquisition [Member] | Minimum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Contingent Consideration, Liability, Measurement Input	0.04
Measurement Input, Long-term Revenue Growth Rate [Member] | FY 2016 Acquisition [Member] | Maximum [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Contingent Consideration, Liability, Measurement Input	0.13
Measurement Input, Discount Rate [Member] | FY2019 Acquisition [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Contingent Consideration, Liability, Measurement Input	0.064
Measurement Input, Discount Rate [Member] | FY 2017 Acquisition [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Contingent Consideration, Liability, Measurement Input	0.054
Measurement Input, Discount Rate [Member] | FY 2016 Acquisition [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items] (Deprecated 2018-01-31)
Contingent Consideration, Liability, Measurement Input	0.047