Stock-Based Compensation (Tables)

6 Months Ended

Mar. 31, 2021

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

Share-based Payment Arrangement, Activity [Table Text Block]

A summary of the stock-based awards granted during the six month periods ended March 31, 2021 and 2020 is presented below:

	Six Months Ended March 31,
	2021			2020
	Number Granted	Weighted Average Grant Date Fair Value		Number Granted	Weighted Average Grant Date Fair Value
Stock options	932,678	$	9.36	1,347,310	$	7.29
Stock appreciation rights	35,254	9.36		—	—
Restricted stock/units	1,697,257	46.20		1,864,026	41.55
Performance shares	410,934	50.53		476,939	42.48

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

	Six Months Ended March 31,
	2021	2020
Expected life of option (years)	6.5	6.5
Risk-free interest rate	0.6%	1.67%
Expected volatility of the Company’s stock	27.6%	22.4%
Expected dividend yield on the Company’s stock	2.28%	2.49%

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

	Six Months Ended March 31,
	2021	2020
Risk-free interest rate	0.20%	1.60%
Expected volatility of the Company’s stock	30.9%	21.8%