Share-Based Compensation (Tables)

3 Months Ended

Dec. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Assumptions for Estimation of Fair Values of Stock Appreciation Rights Granted During Reporting Periods

The fair values of stock appreciation rights granted during the annual share-based grants in November of 2016 and 2015, respectively, were estimated on the date of grant using a lattice-based binomial valuation model based on the following assumptions:

	2017			2016
Risk-free interest rate	2.33		%	2.17		%
Expected volatility	20.00		%	19.00		%
Expected dividend yield	1.71		%	1.76		%
Expected life	7.5 years			7.6 years
Fair value derived	$	33.81		$	27.69