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Shared-Based Compensation (Tables)
6 Months Ended
Feb. 28, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Summary Of Type And Fair Value Of Share-Based Compensation Awards

The following table illustrates the type and fair value of the share-based compensation awards granted during the three month periods ended February 28, 2018 and February 28, 2017:

 

 

Three months ended

 

 

 

February 28,

2018

 

 

February 28,

2017

 

 

 

Number of

units

granted

 

 

Weighted

average

grant-date

fair value

per award

 

 

Number of

units

granted

 

 

Weighted

average

grant-date

fair value

per award

 

Stock options

 

 

1,994

 

 

$

30.50

 

 

 

-

 

 

$

-

 

RSUs

 

 

6,401

 

 

$

89.65

 

 

 

7,427

 

 

$

74.47

 

PSUs

 

 

670

 

 

$

87.24

 

 

 

-

 

 

$

-

 

    

Schedule Of Assumptions Used

The following table provides the assumptions used in determining the fair value of the stock options awarded during the three month period ended February 28, 2018:

 

 

 

Grant Year

 

 

 

2018

 

Weighted-average dividend yield

 

 

1.3

%

Weighted-average volatility

 

 

33.1

%

Risk-free interest rate

 

 

2.6

%

Weighted-average expected lives

 

7 years