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Stock-based Compensation (Tables)

12 Months Ended

Aug. 31, 2015

Stock Option [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Stock Options Activity

							Weighted-Average
							Remaining
				Weighted-Average			Contractual Term
	Number of			Exercise Price			Per Share			Aggregate
Stock Options	Shares			Per Share			(in years)			Intrinsic Value
Outstanding at August 31, 2014		130,065		$	33.07
Granted		-		$	-
Exercised		(67,445)		$	31.30
Forfeited or expired		-		$	-
Outstanding at August 31, 2015		62,620		$	34.97			1.6		$	3,054
Exercisable at August 31, 2015		62,620		$	34.97			1.6		$	3,054

Restricted Stock Units [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Restricted Stock Units Activity

				Weighted-Average
				Grant Date
	Number of			Fair Value			Aggregate
Restricted Stock Units	Shares			Per Share			Intrinsic Value
Outstanding at August 31, 2014		135,930		$	43.18
Granted		24,924		$	69.35
Converted to common shares		(23,959)		$	47.46
Forfeited		-		$	-
Outstanding at August 31, 2015		136,895		$	47.19		$	11,464
Vested at August 31, 2015		99,559		$	42.20		$	8,337

Market Share Units [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Payment Award, Valuation Assumptions

	Fiscal Year Ended August 31,
	2015			2014			2013
Expected volatility		22.0%			25.2%			25.4%
Risk-free interest rate		0.8%			0.6%			0.4%
Expected dividend yield		0.0%			0.0%			0.0%

Schedule of Share-based Compensation, Maket Share Units Activity

				Weighted-Average
				Grant Date
	Number of			Fair Value			Aggregate
Market Share Units	Shares			Per Share			Intrinsic Value
Outstanding at August 31, 2014		39,869		$	51.01
Granted		17,735		$	71.66
Converted to common shares		-		$	-
Forfeited		-		$	-
Outstanding at August 31, 2015		57,604		$	57.37		$	4,824

X

- Definition

Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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-Name Accounting Standards Codification



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