EARNINGS PER COMMON SHARE (Tables)

12 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Earnings Per Common Share

	2017		2016		2015
Basic EPS:
Net Income	$	161.6	$	144.2	$	136.9
Less: Income allocated to participating securities	0.4		0.5		0.5
Net Income Available to Common Shareholders	$	161.2	$	143.7	$	136.4
Weighted Average Shares Outstanding (millions)	46.9		44.1		43.2
Earnings Per Share of Common Stock	$	3.44	$	3.26	$	3.16
Diluted EPS:
Net Income	$	161.6	$	144.2	$	136.9
Less: Income allocated to participating securities	0.4		0.5		0.5
Net Income Available to Common Shareholders	$	161.2	$	143.7	$	136.4
Weighted Average Shares Outstanding (millions)	46.9		44.1		43.2
Dilutive Effect of Stock Options, Restricted Stock, and Restricted Stock Units (millions)	0.1		0.2		0.1
Weighted Average Diluted Shares (millions)	47.0		44.3		43.3
Earnings Per Share of Common Stock	$	3.43	$	3.24	$	3.16
Outstanding Shares (in millions) Excluded from the Calculation of Diluted EPS Attributable to:
Restricted stock and stock units subject to performance and/or market conditions	0.5		0.3		0.3