SHARE-BASED COMPENSATION EXPENSE (Details 2) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Apr. 30, 2017	Oct. 31, 2016
Summarizes information with respect to stock options outstanding
Weighted average exercise price - options (in dollars per share)	$ 29.55	$ 26.90
Range of exercise price 1.88 to 10.18
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)	$ 10.18
Number of underlying shares - options (in shares)	83
Weighted average remaining contractual life - options (in years)	2 years 8 months 1 day
Weighted average exercise price - options (in dollars per share)	$ 8.16
Aggregate intrinsic value - options	$ 1,229
Number of underlying shares - vested options (in shares)	82
Weighted average remaining contractual life - vested options (in years)	2 years 7 months 10 days
Weighted average exercise price - vested options (in dollars per share)	$ 8.14
Aggregate intrinsic value - vested options	$ 1,216
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)	207
Weighted average remaining contractual life - options (in years)	4 years 10 months 28 days
Weighted average exercise price - options (in dollars per share)	$ 13.42
Aggregate intrinsic value - options	$ 1,964
Number of underlying shares - vested options (in shares)	198
Weighted average remaining contractual life - vested options (in years)	4 years 9 months 18 days
Weighted average exercise price - vested options (in dollars per share)	$ 13.34
Aggregate intrinsic value - vested options	$ 1,893
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)	$ 17.5
Range of exercise price, Upper (in dollars per share)	$ 30.46
Number of underlying shares - options (in shares)	145
Weighted average remaining contractual life - options (in years)	1 year 11 months 19 days
Weighted average exercise price - options (in dollars per share)	$ 25.66
Aggregate intrinsic value - options	$ 167
Number of underlying shares - vested options (in shares)	135
Weighted average remaining contractual life - vested options (in years)	1 year 6 months 18 days
Weighted average exercise price - vested options (in dollars per share)	$ 26.20
Aggregate intrinsic value - vested options	$ 121
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)	323
Weighted average remaining contractual life - options (in years)	1 year 10 months 6 days
Weighted average exercise price - options (in dollars per share)	$ 35.19
Aggregate intrinsic value - options	$ 0
Number of underlying shares - vested options (in shares)	323
Weighted average remaining contractual life - vested options (in years)	1 year 10 months 6 days
Weighted average exercise price - vested options (in dollars per share)	$ 35.19
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)	237
Weighted average remaining contractual life - options (in years)	4 years 26 days
Weighted average exercise price - options (in dollars per share)	$ 45.89
Aggregate intrinsic value - options	$ 0
Number of underlying shares - vested options (in shares)	231
Weighted average remaining contractual life - vested options (in years)	4 years 7 days
Weighted average exercise price - vested options (in dollars per share)	$ 45.91
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)	995
Weighted average remaining contractual life - options (in years)	3 years 1 month 6 days
Weighted average exercise price - options (in dollars per share)	$ 29.55
Aggregate intrinsic value - options	$ 3,360
Number of underlying shares - vested options (in shares)	969
Weighted average remaining contractual life - vested options (in years)	2 years 11 months 27 days
Weighted average exercise price - vested options (in dollars per share)	$ 29.73
Aggregate intrinsic value - vested options	$ 3,230