Earnings per Share (Tables)

6 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Schedule of Calculation of Numerator and Denominator in Earnings Per Share

The following is a reconciliation of the numerator and denominator of the diluted earnings per share computations for the periods presented below.

	Three Months Ended March 31,				Six Months Ended March 31,
(in millions, except share amounts)	2021		2020		2021		2020
Numerator:
Net income	$	55.3	$	39.3	$	74.8	$	55.6
Less: Allocation to participating securities	(1.7)		(0.9)		(2.2)		(1.2)
Net income allocated to common stockholders	$	53.6	$	38.4	$	72.6	$	54.4
Denominator:
Weighted average number of:
Common shares outstanding	19,112,216		18,872,937		19,025,604		18,811,268
Dilutive potential common shares outstanding:
Share-based awards	558,323		317,016		544,424		321,229
Diluted weighted-average common shares	19,670,539		19,189,953		19,570,028		19,132,497