FAIR VALUE MEASUREMENTS, Assets and Liabilities, Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Oct. 31, 2019
Assets [Abstract]
Deferred Compensation Plan Assets	$ 180,139	$ 151,891
Liabilities [Abstract]
Contingent consideration, liability	41,974	18,326
Fair Value, Inputs, Level 1 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	11	20
Fair Value, Inputs, Level 2 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	180,128	151,871
Fair Value, Inputs, Level 3 [Member]
Liabilities [Abstract]
Contingent consideration, liability	41,974	18,326
Corporate Owned Life Insurance [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	180,128	151,871
Corporate Owned Life Insurance [Member] | Fair Value, Inputs, Level 2 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	180,128	151,871
Money Market Funds [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	11	20
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Assets [Abstract]
Deferred Compensation Plan Assets	$ 11	$ 20