SHARE-BASED COMPENSATION EXPENSE (Details 2) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Jul. 31, 2017	Oct. 31, 2016
Summarizes information with respect to stock options outstanding
Weighted average exercise price - options (in dollars per share)	$ 30.35	$ 26.90
Range of exercise price 1.88 to 11.16
Summarizes information with respect to stock options outstanding
Range of exercise price, Lower (in dollars per share)	1.88
Range of exercise price, Upper (in dollars per share)	$ 11.16
Number of underlying shares - options (in shares)	65
Weighted average remaining contractual life - options (in years)	2 years 10 months 2 days
Weighted average exercise price - options (in dollars per share)	$ 8.66
Aggregate intrinsic value - options	$ 1,094
Number of underlying shares - vested options (in shares)	64
Weighted average remaining contractual life - vested options (in years)	2 years 9 months 11 days
Weighted average exercise price - vested options (in dollars per share)	$ 8.64
Aggregate intrinsic value - vested options	$ 1,082
Range of exercise price 11.34 to 17.24
Summarizes information with respect to stock options outstanding
Range of exercise price, Lower (in dollars per share)	$ 11.34
Range of exercise price, Upper (in dollars per share)	$ 17.24
Number of underlying shares - options (in shares)	178
Weighted average remaining contractual life - options (in years)	4 years 10 months 2 days
Weighted average exercise price - options (in dollars per share)	$ 13.44
Aggregate intrinsic value - options	$ 2,130
Number of underlying shares - vested options (in shares)	172
Weighted average remaining contractual life - vested options (in years)	4 years 9 months 4 days
Weighted average exercise price - vested options (in dollars per share)	$ 13.39
Aggregate intrinsic value - vested options	$ 2,065
Range of exercise price 17.50 to 30.46
Summarizes information with respect to stock options outstanding
Range of exercise price, Lower (in dollars per share)	$ 17.50
Range of exercise price, Upper (in dollars per share)	$ 30.46
Number of underlying shares - options (in shares)	127
Weighted average remaining contractual life - options (in years)	1 year 9 months 26 days
Weighted average exercise price - options (in dollars per share)	$ 25.90
Aggregate intrinsic value - options	$ 222
Number of underlying shares - vested options (in shares)	119
Weighted average remaining contractual life - vested options (in years)	1 year 5 months 23 days
Weighted average exercise price - vested options (in dollars per share)	$ 26.35
Aggregate intrinsic value - vested options	$ 172
Range of exercise price 31.93 to 37.10
Summarizes information with respect to stock options outstanding
Range of exercise price, Lower (in dollars per share)	$ 31.93
Range of exercise price, Upper (in dollars per share)	$ 37.10
Number of underlying shares - options (in shares)	299
Weighted average remaining contractual life - options (in years)	1 year 8 months 27 days
Weighted average exercise price - options (in dollars per share)	$ 35.10
Aggregate intrinsic value - options	$ 0
Number of underlying shares - vested options (in shares)	299
Weighted average remaining contractual life - vested options (in years)	1 year 8 months 27 days
Weighted average exercise price - vested options (in dollars per share)	$ 35.10
Aggregate intrinsic value - vested options	$ 0
Range of exercise price 37.82 to 55.63
Summarizes information with respect to stock options outstanding
Range of exercise price, Lower (in dollars per share)	$ 37.82
Range of exercise price, Upper (in dollars per share)	$ 55.63
Number of underlying shares - options (in shares)	225
Weighted average remaining contractual life - options (in years)	3 years 11 months 1 day
Weighted average exercise price - options (in dollars per share)	$ 46.17
Aggregate intrinsic value - options	$ 0
Number of underlying shares - vested options (in shares)	224
Weighted average remaining contractual life - vested options (in years)	3 years 10 months 28 days
Weighted average exercise price - vested options (in dollars per share)	$ 46.19
Aggregate intrinsic value - vested options	$ 0
Range of exercise price 1.88 to 55.63
Summarizes information with respect to stock options outstanding
Range of exercise price, Lower (in dollars per share)	$ 1.88
Range of exercise price, Upper (in dollars per share)	$ 55.63
Number of underlying shares - options (in shares)	894
Weighted average remaining contractual life - options (in years)	3 years
Weighted average exercise price - options (in dollars per share)	$ 30.35
Aggregate intrinsic value - options	$ 3,446
Number of underlying shares - vested options (in shares)	878
Weighted average remaining contractual life - vested options (in years)	2 years 11 months 1 day
Weighted average exercise price - vested options (in dollars per share)	$ 30.56
Aggregate intrinsic value - vested options	$ 3,319