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Stock-based Compensation (Tables)
12 Months Ended
Aug. 31, 2014
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, 2013

 

168,591 

 

$

33.13 

 

 

 

 

 

 

Granted

 

 -

 

$

 -

 

 

 

 

 

 

Exercised

 

(38,526)

 

$

33.33 

 

 

 

 

 

 

Forfeited or expired

 

 -

 

$

 -

 

 

 

 

 

 

Outstanding at August 31, 2014

 

130,065 

 

$

33.07 

 

 

2.2 

 

$

4,634 

Exercisable at August 31, 2014

 

130,065 

 

$

33.07 

 

 

2.2 

 

$

4,634 

 

 

 

 

 

 

 

 

 

 

 

 

 

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, 2013

 

151,728 

 

$

38.25 

 

 

 

Granted

 

25,019 

 

$

66.82 

 

 

 

Converted to common shares

 

(39,121)

 

$

39.24 

 

 

 

Forfeited

 

(1,696)

 

$

41.94 

 

 

 

Outstanding at August 31, 2014

 

135,930 

 

$

43.18 

 

$

9,338 

Vested at August 31, 2014

 

92,370 

 

$

39.26 

 

$

6,346 

 

 

 

 

 

 

 

 

 

 

Performance Share Units [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Compensation, Performance Share Units Activity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-Average

 

 

 

 

 

Grant Date

 

 

 

Number of

 

Fair Value

 

Aggregate

Performance Share Units

Shares

 

Per Share

 

Intrinsic Value

Outstanding at August 31, 2013

 

17,180 

 

$

39.61 

 

 

 

Granted

 

 -

 

$

 -

 

 

 

Converted to common shares

 

(13,872)

 

$

39.61 

 

 

 

Forfeited

 

(3,308)

 

$

39.61 

 

 

 

Outstanding at August 31, 2014

 

 -

 

$

 -

 

$

 -

 

 

 

 

 

 

 

 

 

 

Market Share Units [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
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, 2013

 

24,231 

 

$

37.20 

 

 

 

Granted

 

16,890 

 

$

69.58 

 

 

 

Converted to common shares

 

 -

 

$

 -

 

 

 

Forfeited

 

(1,252)

 

$

34.16 

 

 

 

Outstanding at August 31, 2014

 

39,869 

 

$

51.01 

 

$

2,739 

 

 

 

 

 

 

 

 

 

 

Schedule of Share-based Payment Award, Valuation Assumptions

 

 

 

 

 

 

 

 

 

 

 

 

 

Fiscal Year Ended August 31,

 

2014

 

2013

Expected volatility

 

25.2% 

 

 

25.4% 

Risk-free interest rate

 

0.6% 

 

 

0.4% 

Expected dividend yield

 

0.0% 

 

 

0.0%