REVENUE (Contract Assets and Liabilities) (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 30, 2021	Oct. 31, 2020
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Contract assets	$ 59,881	$ 60,429
Contract liabilities	31,451	25,631
Net contract assets	28,430	$ 34,798
Decrease in contract assets, net	(548)
Increase (Decrease) in Customer Deposits	5,820
Contract with Customer, Billings in Excess of Unbilled Receivable and New Deposits in Excess of Deposits Recognized as Revenue	$ (6,368)