EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Jul. 31, 2020	Apr. 30, 2020	Jan. 31, 2020	Jul. 31, 2019	Apr. 30, 2019	Jan. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Earnings Per Share [Abstract]
Net income	$ 32,810	$ 6,118	$ (38,576)	$ 53,362	$ 40,636	$ (17,833)	$ 352	$ 76,165
Distributed and undistributed (earnings) to unvested restricted stock	(432)			(766)			(4)	(1,125)
Distributed and undistributed earnings to common shareholders—Basic	$ 32,378			$ 52,596			$ 348	$ 75,040
Weighted average shares outstanding—Basic (in shares)	21,946			21,835			21,942	21,826
Weighted average shares outstanding—Diluted (in shares)	21,946			21,835			21,942	21,826
Earnings per common share-Basic (in usd per share)	$ 1.48			$ 2.41			$ 0.02	$ 3.44
Earnings per common share-Diluted (in usd per share)	$ 1.48			$ 2.41			$ 0.02	$ 3.44