Share-based Compensation (Tables)

12 Months Ended

Aug. 31, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Weighted Average Assumptions

The fair value of each stock appreciation right is estimated on the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions used:

Fiscal year ended August	2019			2018			2017
Risk-free interest rate		3.07	%		2.23	%		1.58	%
Expected dividend yield		0.48	%		0.18	%		0.21	%
Expected life in years		7.24			7.41			7.43
Expected volatility		22.9	%		23.1	%		24.0	%

Summary of Share-Based Award Activity for Stock Options and Stock Appreciation Rights

The following table summarizes the Share-Based Awards activity in the form of stock options and stock appreciation rights for fiscal 2019:

	Number of Shares			Weighted Average Exercise Price
Outstanding, August 25, 2018		585,926		$	110.86
Granted		104,174			150.64
Exercised		(108,450	)		88.60
Forfeited		(11,400	)		127.22
Outstanding, August 31, 2019		570,250		$	122.03
Exercisable, August 31, 2019		137,063		$	102.84

Summary of Share-Based Award Activity for Restricted Stock Units

The following table summarizes the Share-Based Awards activity in the form of restricted stock units for fiscal 2019:

	Number of Shares			Weighted Average Exercise Price
Unvested balance at August 25, 2018		11,720		$	168.27
Granted		17,920			145.31
Vested		(1,107	)		165.40
Forfeited		—			—
Unvested balance at August 31, 2019		28,533		$	153.96