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Shared Based Compensation (Tables)

12 Months Ended

Aug. 31, 2015

Share Based Compensation [Abstract]

Schedule Of Share-Based Compensation Expense

			For the years ended August 31,
$ in thousands		2015			2014			2013
Share-based compensation expense included in cost of
operating revenues		$	161		$	205		$	214
Research and development			121			135			233
Sales and marketing			523			570			547
General and administrative			2,527			3,297			3,579
Share-based compensation expense included in
operating expenses			3,171			4,002			4,359
Total share-based compensation expense			3,332			4,207			4,573
Tax benefit			(1,263)			(1,594)			(1,733)
Share-based compensation expense, net of tax		$	2,069		$	2,613		$	2,840

Schedule Of Assumptions Used

						Grant Year
Weighted-Average Assumptions						Fiscal 2015			Fiscal 2014
Risk-free interest rate							2.0%			1.9%
Dividend yield							1.3%			0.7%
Expected life (years)							7			7
Volatility							53.6%			55.2%
Weighted-average grant-date fair value of options granted						$	40.66		$	40.40

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, 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
Granted		25,332		$	83.53
Exercised		(9,859)		$	39.99				$	425
Forfeitures		(5,720)		$	76.91
Stock options outstanding at August 31, 2015		96,376		$	70.65		7.3		$	710

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
Exercisable at August 31, 2015		39,449		$	61.47		6.1		$	583

Summary Of Share Based Compensation Additional Information

			For the years ended August 31,
$ in thousands		2015			2014			2013
Intrinsic value of stock options exercised		$	425		$	853		$	4,960
Cash received from stock option exercises		$	394		$	455		$	2,036
Tax benefit realized from stock option exercises		$	158		$	317		$	1,817
Aggregate grant-date fair value of stock options vested		$	36.71		$	34.89		$	31.04

Summary Of Restricted Stock Units

		Number of restricted stock units			Weighted-Average Grant-Date Fair Value
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		$	73.04
Granted			34,291			80.94
Vested			(32,349)			72.28
Forfeited			(4,123)			77.55
Restricted stock units outstanding at August 31, 2015			56,972		$	78.54

Schedule Of Performance Stock Status

		Number of performance stock units			Weighted-Average Grant-Date Fair Value
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
Granted			12,328			80.33
Vested			(15,786)			57.09
Forfeited			(3,438)			76.44
Performance stock units outstanding at August 31, 2015			33,856		$	76.50

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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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