EARNINGS PER COMMON SHARE (Tables)

12 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Earnings Per Common Share

	2018		2017		2016
Basic Earnings Per Share:
Net Income	$	214.2	$	161.6	$	144.2
Less: Income allocated to participating securities	0.5		0.4		0.5
Net Income Available to Common Shareholders	$	213.7	$	161.2	$	143.7
Weighted Average Shares Outstanding (in millions)	49.1		46.9		44.1
Basic Earnings Per Share of Common Stock	$	4.35	$	3.44	$	3.26
Diluted Earnings per Share:
Net Income	$	214.2	$	161.6	$	144.2
Less: Income allocated to participating securities	0.5		0.4		0.5
Net Income Available to Common Shareholders	$	213.7	$	161.2	$	143.7
Weighted Average Shares Outstanding (in millions)	49.1		46.9		44.1
Dilutive Effect of Restricted Stock and Restricted Stock Units (in millions)*	0.2		0.1		0.2
Weighted Average Diluted Shares (in millions)	49.3		47.0		44.3
Diluted Earnings Per Share of Common Stock	$	4.33	$	3.43	$	3.24
* Calculation excludes certain outstanding shares (shown in millions by period at the right) attributable to stock units subject to performance or market conditions and restricted stock, which could have a dilutive effect in the future	0.4		0.5		0.3