STOCK OPTIONS (Details 2) (USD $)	12 Months Ended
	Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2009
Cash proceeds from stock option exercises	$ 2,167,000	$ 1,815,000	$ 1,207,000
Tax benefit realized from stock option exercises	7,703,000	951,000	1,890,000
Intrinsic value of stock option exercises	$ 48,952,000	$ 10,379,000	$ 1,586,000