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FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS (Level 3 Valuation Inputs) (Details) - Fair Value, Inputs, Level 3 [Member] $ in Thousands | Jul. 31, 2022 USD ($) | Oct. 31, 2021 USD ($)
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Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value |  | $ 80,632 | $ 62,286
FY2022 Acquisition Subsidiary 1 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value |  | 13,145 |
FY2022 Acquisition Subsidiary 2 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value |  | 9,653 |
FY2021 Acquisition Subsidiary 1 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value |  | 17,394 |
FY2020 Acquisition Subsidiary 1 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value |  | 14,450 |
FY2020 Acquisition Subsidiary 2 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value |  | 7,386 |
FY 2017 Acquisition [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value |  | $ 18,604 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2022 Acquisition Subsidiary 1 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | [1] | 0.03 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2022 Acquisition Subsidiary 1 | Minimum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2022 Acquisition Subsidiary 1 | Maximum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.05 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2022 Acquisition Subsidiary 2 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | [1] | 0.03 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2022 Acquisition Subsidiary 2 | 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] | FY2022 Acquisition Subsidiary 2 | Maximum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.08 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2021 Acquisition Subsidiary 1 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | [1] | 0.07 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2021 Acquisition Subsidiary 1 | Minimum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | (0.01) |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2021 Acquisition Subsidiary 1 | 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] | FY2020 Acquisition Subsidiary 1 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | [1] | 0.15 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2020 Acquisition Subsidiary 1 | Minimum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.12 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2020 Acquisition Subsidiary 1 | Maximum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.21 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2020 Acquisition Subsidiary 2 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | [1] | 0.06 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2020 Acquisition Subsidiary 2 | Minimum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | (0.02) |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY2020 Acquisition Subsidiary 2 | Maximum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.13 |
Measurement Input, Long-term Revenue Growth Rate [Member] | FY 2017 Acquisition [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | [1] | 0.03 |
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 |  | (0.01) |
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 |  | 0.05 |
Measurement Input, Discount Rate [Member] | FY2022 Acquisition Subsidiary 1 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | [1] | 0.072 |
Measurement Input, Discount Rate [Member] | FY2022 Acquisition Subsidiary 1 | Minimum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.072 |
Measurement Input, Discount Rate [Member] | FY2022 Acquisition Subsidiary 1 | Maximum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.072 |
Measurement Input, Discount Rate [Member] | FY2022 Acquisition Subsidiary 2 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | [1] | 0.058 |
Measurement Input, Discount Rate [Member] | FY2022 Acquisition Subsidiary 2 | Minimum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.058 |
Measurement Input, Discount Rate [Member] | FY2022 Acquisition Subsidiary 2 | Maximum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.058 |
Measurement Input, Discount Rate [Member] | FY2021 Acquisition Subsidiary 1 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | [1] | 0.070 |
Measurement Input, Discount Rate [Member] | FY2021 Acquisition Subsidiary 1 | Minimum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.069 |
Measurement Input, Discount Rate [Member] | FY2021 Acquisition Subsidiary 1 | Maximum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.073 |
Measurement Input, Discount Rate [Member] | FY2020 Acquisition Subsidiary 1 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | [1] | 0.047 |
Measurement Input, Discount Rate [Member] | FY2020 Acquisition Subsidiary 1 | Minimum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.037 |
Measurement Input, Discount Rate [Member] | FY2020 Acquisition Subsidiary 1 | Maximum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.073 |
Measurement Input, Discount Rate [Member] | FY2020 Acquisition Subsidiary 2 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input | [1] | 0.070 |
Measurement Input, Discount Rate [Member] | FY2020 Acquisition Subsidiary 2 | Minimum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.070 |
Measurement Input, Discount Rate [Member] | FY2020 Acquisition Subsidiary 2 | Maximum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.070 |
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 | [1] | 0.062 |
Measurement Input, Discount Rate [Member] | FY 2017 Acquisition [Member] | Minimum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.062 |
Measurement Input, Discount Rate [Member] | FY 2017 Acquisition [Member] | Maximum [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Business Combination, Contingent Consideration, Liability, Measurement Input |  | 0.062 |
[1] | Unobservable inputs were weighted by the relative fair value of the contingent consideration liability

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