SHARE-BASED COMPENSATION EXPENSE (Details 3) - Restricted Stock Units (RSUs) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Apr. 30, 2016	Oct. 31, 2015
Summary of Restricted Stock Unit Activity
Balance at October 31, 2014 (in shares)	4,886
Granted (in shares)	2,055
Vested (in shares)	(1,686)
Canceled or forfeited (in shares)	(253)
Balance at January 31, 2015 (in shares)	5,002
Weighted Average Grant Date Fair Value [Abstract]
Weighted average grant date fair value (in dollars per share)	$ 19.91	$ 20.02
Aggregate fair value	$ 84,182	$ 117,951