Note 13. Employee Stock Option and Retirement Plans (Tables)

3 Months Ended

Nov. 30, 2012

Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity [Table Text Block]

	Number Outstanding			Weighted Average Exercise Price Per Share
Balance at August 31, 2012		6,083		$	64.76
Granted – non performance-based		635			92.22
Granted – performance-based		1,012			92.22
Exercised		(253	)		46.79
Forfeited		(12	)		85.28
Balance at November 30, 2012		7,465		$	71.39

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

	Number Outstanding			Weighted Average Grant Date Fair Value Per Award
Balance at August 31, 2012		383			$	71.34
Granted (restricted stock and stock units)		-			$	-
Vested*		(93	)		$	63.23
Canceled/forfeited		(1	)		$	77.38
Balance at November 30, 2012		289			$	73.92

Schedule of Share Based Awards Available For Grant [Table Text Block]

	Share-based Awards Available for Grant under the Employee Option Plan			Share-based Awards Available for Grant under the Non-Employee Directors Plan
Balance at August 31, 2012		4,340			126
Granted – non performance-based options		(635	)		0
Granted – performance-based options		(1,012	)		0
Share-based awards canceled/forfeited*		13			0
Balance at November 30, 2012		2,706			126

Performance Shares [Member]

ScheduleOfShareBasedCompensationVestingPercentageAndRelatedExpensesTableTextBlock

Vesting Percentage	Total Unamortized Stock-based Compensation Expense at Nov 30, 2012		Cumulative Catch-up Adjustment*		Average Remaining Quarterly Expense to be Recognized
0%	$	0	$	0	$	0
20%	$	2,452	$	1,188	$	157
60%	$	7,356	$	3,564	$	471
100%	$	12,260	$	5,940	$	785

Vesting Percentage	Total Unamortized Stock-based Compensation Expense at Nov 30, 2012		Cumulative Catch-up Adjustment*			Average Remaining Quarterly Expense to be Recognized
0%	$	0	$	(119	)	$	0
20%	$	4,628	$	0		$	235
60%	$	13,884	$	238		$	705
100%	$	23,140	$	476		$	1,175

July 2012 Performance Based Option Grant Review [Member]

ScheduleOfShareBasedCompensationVestingPercentageAndRelatedExpensesTableTextBlock

Vesting Percentage	Cumulative Catch-up Adjustment*			Remaining Expense to be Recognized
0%	$	(211	)	$	-
20%	$	0		$	1,389
40%	$	129		$	2,860
60%	$	289		$	4,300
80%	$	432		$	5,758
100%	$	614		$	7,176