REVENUE (Contract Assets and Liabilities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Revenue from Contract with Customer [Abstract]
Contract assets	$ 60,429	$ 43,132
Contract liabilities	25,631	23,809
Net contract assets	34,798	$ 19,323
Change in contract assets	17,297
Change in contract liabilities	1,822
Change in net contract assets	$ 15,475