Stock-Based Compensation (Tables)

6 Months Ended

Mar. 31, 2018

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

Share-based Compensation, Activity [Table Text Block]

A summary of the stock-based awards granted during the six month periods ended March 31, 2018 and 2017 is presented below:

	Six Months Ended March 31,
	2018			2017
	Number Granted	Weighted Average Grant Date Fair Value		Number Granted	Weighted Average Grant Date Fair Value
Stock options	1,355,595	$	7.05	2,830,826	$	7.81
Stock appreciation rights	—	—		15,693	8.28
Restricted stock/units	2,095,225	37.37		1,582,962	41.74
Performance shares	496,478	36.31		846,725	48.40

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Six Months Ended March 31,
	2018	2017
Expected life of option (years)	6.5	4.75 & 6.5
Risk-free interest rate	2.28%	1.23% - 1.48%
Expected volatility of the Company’s stock	23.7%	24.6%
Expected dividend yield on the Company’s stock	2.78%	2.21%

Schedule of share-based payment award, performance share, valuation assumptions [Table Text Block]

	Six Months Ended March 31,
	2018	2017
Risk-free interest rate	1.92%	1.40%
Expected volatility of the Company’s stock	21.7%	21.0%