LEASES (Operating Lease Expense) (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
		Jul. 31, 2020	Jul. 31, 2020
Leases [Abstract]
Operating lease expense		$ 4,311	$ 12,855
Variable lease expense		619	1,942
Total operating lease expense (1)	[1]	$ 4,930	$ 14,797

[1] Excludes short-term lease expense, which is not material.