EARNINGS PER SHARE (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jan. 31, 2018	Jan. 31, 2017
Earnings Per Share [Abstract]
Net income	$ 51,206	$ 24,025
Distributed and undistributed (earnings) to unvested restricted stock	(732)	(368)
Distributed and undistributed earnings to common shareholders—Basic	$ 50,474	$ 23,657
Weighted average shares outstanding—Basic (in shares)	22,501	22,379
Weighted average shares outstanding—Diluted (in shares)	22,501	22,379
Earnings per common share-Basic (in usd per share)	$ 2.24	$ 1.06
Earnings per common share-Diluted (in usd per share)	$ 2.24	$ 1.06