INCOME TAXES (Details Textuals) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Apr. 30, 2021	Jan. 31, 2021	Apr. 30, 2020	Jan. 31, 2020	Apr. 30, 2021	Apr. 30, 2020
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	19.50%		22.60%		12.00%	0.30%
Tax benefit from stock option exercises recognized in the period		$ 13,500		$ 47,600
Change in tax benefit for stock option exercises				$ 34,100