STOCK OPTIONS (Tables)

12 Months Ended

Oct. 31, 2011

Stock Options (Tables) [Abstract]

Schedule Of Share Based Compensation Stock Options Activity And Shares Available For Grants [Table Text Block]

Schedule of stock option activity

 

	Shares			Shares Under Option
	Available						Weighted Average
	For Grant			Shares			Exercise Price
Outstanding as of October 31, 2008		2,599,309			2,537,097		$	6.29
Granted		(527,344	)		527,344		$	23.33
Exercised		—			(153,406	)	$	7.86
Outstanding as of October 31, 2009		2,071,965			2,911,035		$	9.30
Granted		(265,625	)		265,625		$	32.69
Cancelled		—			(930	)	$	8.73
Exercised		—			(503,920	)	$	6.74
Outstanding as of October 31, 2010		1,806,340			2,671,810		$	12.10
Granted		(473,125	)		473,125		$	40.31
Cancelled		—			(2,652	)	$	6.18
Exercised		—			(1,291,089	)	$	7.31
Outstanding as of October 31, 2011		1,333,215			1,851,194		$	22.66

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block]

Stock options outstanding and stock options exercisable by class of common stock

	Options Outstanding
			Weighted		Weighted Average			Aggregate
	Number		Average			Remaining Contractual		Intrinsic
	Outstanding		Exercise Price		Life (Years)			Value
Common Stock		954,975	$	27.82			7.2	$	27,881,189
Class A Common Stock		896,219	$	17.15			5.3		19,856,466
		1,851,194	$	22.66			6.3	$	47,737,655

	Options Exercisable
			Weighted		Weighted Average			Aggregate
	Number		Average			Remaining Contractual		Intrinsic
	Exercisable		Exercise Price		Life (Years)			Value
Common Stock		367,475	$	14.71			4.4	$	15,547,539
Class A Common Stock		481,687	$	6.52			2.2		15,792,217
		849,162	$	10.07			3.1	$	31,339,756

Schedule of Cash Proceeds Received from Share-based Payment Awards [Table Text Block]

Stock options exercised

 

	Year ended October 31,
	2011		2010		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

 

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block]

The weighted-average fair values of stock options granted are as follows:

 

	Year ended October 31,
	2011		2010		2009
Common Stock	$	22.93	$	17.85	$	13.43
Class A Common Stock	$	14.45	$	8.90	$	8.61

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Fair value of stock option grant estimated on the date of grant using the Black-Scholes option-pricing model based on weighted average assumptions

  

	2011						2010						2009
				Class A						Class A						Class A
	Common			Common			Common			Common			Common			Common
	Stock			Stock			Stock			Stock			Stock			Stock
Expected stock price volatility		41.17	%		38.92	%		42.01	%		39.57	%		44.13	%		39.44	%
Risk-free interest rate		1.64	%		2.74	%		2.45	%		3.02	%		3.22	%		2.80	%
Dividend yield		.26	%		.33	%		.27	%		.33	%		.25	%		.33	%
Forfeiture rate		.00	%		.00	%		.00	%		.00	%		.00	%		.00	%
Expected option life (years)		9			7			9			7			9			6