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Shared Based Compensation (Tables)

12 Months Ended

Aug. 31, 2014

Share Based Compensation [Abstract]

Schedule Of Share-Based Compensation Expense

			For the years ended August 31,
$ in thousands		2014			2013			2012
Share-based compensation expense included in cost of
operating revenues		$	205		$	214		$	225
Research and development			135			233			189
Sales and marketing			570			547			524
General and administrative			3,297			3,579			3,001
Share-based compensation expense included in
operating expenses			4,002			4,359			3,714
Total share-based compensation expense			4,207			4,573			3,939
Tax benefit			(1,594)			(1,733)			(1,493)
Share-based compensation expense, net of tax		$	2,613		$	2,840		$	2,446

Schedule Of Assumptions Used

						Grant Year
Weighted-Average Assumptions						Fiscal 2014			Fiscal 2013
Risk-free interest rate							1.9%			1.2%
Dividend yield							0.7%			0.6%
Expected life (years)							7			7
Volatility							55.2%			56.3%
Weighted-average grant-date fair value of options granted						$	40.40		$	40.09

Summary Of Stock Option Activity

		Number of stock options		Average Exercise Price			Average Remaining Contractual Term (years)		Aggregate Intrinsic Value ('000s)
Stock options outstanding at August 31, 2012		146,298		$	30.97		3.9		$	5,031
Granted		24,684		$	75.68
Exercised		(89,390)		$	22.77				$	4,960
Forfeitures		(2,454)		$	67.03
Stock options outstanding at August 31, 2013		79,138		$	53.06		6.4		$	1,817
Granted		25,394		$	76.39
Exercised		(15,590)		$	29.21				$	853
Forfeitures		(2,319)		$	67.55
Stock options outstanding at August 31, 2014		86,623		$	63.80		7.3		$	1,211

Exercisable at August 31, 2012		112,987		$	22.97		2.4		$	4,789
Exercisable at August 31, 2013		31,927		$	32.70		3.0		$	1,383
Exercisable at August 31, 2014		30,130		$	49.55		5.3		$	851

Summary Of Share Based Compensation Additional Information

			For the years ended August 31,
$ in thousands		2014			2013			2012
Intrinsic value of stock options exercised		$	853		$	4,960		$	971
Cash received from stock option exercises		$	455		$	2,036		$	567
Tax benefit realized from stock option exercises		$	317		$	1,817		$	368
Aggregate grant-date fair value of stock options vested		$	34.89		$	31.04		$	N/A

Summary Of Restricted Stock Units

		Number of restricted stock units			Weighted-Average Grant-Date Fair Value
Restricted stock units outstanding at August 31, 2012			67,535		$	54.35
Granted			30,551			77.46
Vested			(37,534)			51.82
Forfeited			(3,121)			65.52
Restricted stock units outstanding at August 31, 2013			57,431		$	68.06
Granted			35,450			76.46
Vested			(31,204)			67.49
Forfeited			(2,524)			70.07
Restricted stock units outstanding at August 31, 2014			59,153		$	73.40

Schedule Of Performance Stock Status

		Number of performance stock units			Weighted-Average Grant-Date Fair Value
Performance stock units outstanding at August 31, 2012			79,024		$	45.32
Granted			13,072			74.31
Vested			(36,634)			32.81
Forfeited			(2,663)			60.65
Performance stock units outstanding at August 31, 2013			52,799		$	60.41
Granted			13,434			74.84
Vested			(23,454)			55.45
Forfeited			(2,027)			64.57
Performance stock units outstanding at August 31, 2014			40,752		$	67.81

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Tabular disclosure of the assumptions used to determine for pension plans and/or other employee benefit plans the benefit obligation and net benefit cost, including assumed discount rates, rate increase in compensation increase, and expected long-term rates of return on plan assets.

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