Shared-Based Compensation (Tables)

12 Months Ended

Aug. 31, 2017

Share-Based Compensation [Abstract]

Schedule Of Share-Based Compensation Expense

		For the years ended August 31,
($ in thousands)	2017		2016		2015
Share-based compensation expense included in cost of
operating revenues	$	231	$	207	$	161
Research and development		162		140		121
Sales and marketing		397		455		523
General and administrative		2,807		2,258		2,527
Share-based compensation expense included in
operating expenses		3,366		2,853		3,171
Total share-based compensation expense		3,597		3,060		3,332
Tax benefit		(1,338)		(1,138)		(1,240)
Share-based compensation expense, net of tax	$	2,259	$	1,922	$	2,092

Schedule Of Assumptions Used

	Grant year
	Fiscal 2017		Fiscal 2016
Risk-free interest rate		1.5%		1.8%
Dividend yield		1.5%		1.7%
Expected life (years)		7		7
Volatility		36.5%		46.3%
Weighted average grant-date fair value of options granted	$	26.25	$	27.88

Summary Of Stock Option Activity

	Number of stock options	Average exercise price		Average remaining contractual term (years)	Aggregate intrinsic value (thousands)
Stock options outstanding at August 31, 2015	96,376	$	70.65	7.3	$	710
Granted	39,999	$	67.68
Exercised	(4,456)	$	25.47		$	181
Forfeited / cancelled	(4,633)	$	72.14
Stock options outstanding at August 31, 2016	127,286	$	71.24	7.4	$	521
Granted	47,223	$	78.23
Exercised	(43,556)	$	69.33		$	681
Forfeited / cancelled	(8,434)	$	73.90
Stock options outstanding at August 31, 2017	122,519	$	74.43	7.5	$	1,487
Exercisable at August 31, 2015	39,449	$	61.47	6.1	$	583
Exercisable at August 31, 2016	57,250	$	68.57	6.1	$	362
Exercisable at August 31, 2017	36,348	$	71.37	5.8	$	553

Summary Of Share Based Compensation Additional Information

		For the years ended August 31,
($ in thousands)	2017		2016		2015
Intrinsic value of stock options exercised	$	681	$	181	$	425
Cash received from stock option exercises	$	3,020	$	113	$	394
Tax benefit realized from stock option exercises	$	254	$	67	$	158
Aggregate grant-date fair value of stock options vested	$	35.79	$	37.70	$	36.71

Summary Of Restricted Stock Units

	Number of restricted stock units		Weighted average grant-date fair value
Restricted stock units outstanding at August 31, 2015		56,972	$	78.54
Granted		48,022		64.36
Vested		(30,634)		78.68
Forfeited / Cancelled		(7,306)		70.41
Restricted stock units outstanding at August 31, 2016		67,054	$	69.11
Granted		44,647		74.75
Vested		(34,312)		69.89
Forfeited / Cancelled		(8,366)		70.51
Restricted stock units outstanding at August 31, 2017		69,023	$	72.25

Schedule Of Performance Stock Status

	Number of performance stock units		Weighted average grant-date fair value
Performance stock units outstanding at August 31, 2015		33,856	$	76.50
Granted		16,466		64.37
Vested		(7,665)		74.31
Forfeited / cancelled		(4,509)		72.28
Performance stock units outstanding at August 31, 2016		38,148	$	72.20
Granted		15,902		74.80
Forfeited / cancelled		(15,361)		74.10
Performance stock units outstanding at August 31, 2017		38,689	$	72.52