Earnings Per Share (Tables)

3 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Computation of basic and diluted earnings per share

	Three Months Ended December 31,
	2020		2019
Net earnings available to Class A Common Stockholders for basic earnings per share	$	7.8	$	6.0
Dilutive impact of net earnings attributable to NCI	—		—
Net earnings available to Class A Common Stockholders for diluted earnings per share	$	7.8	$	6.0
Weighted average shares for basic earnings per share (in millions)	39.5		39.4
Total dilutive restricted stock units (in millions)	0.1		—
Weighted average shares for diluted earnings per share (in millions)	39.6		39.4
Basic earnings per share of Class A Common Stock	$	0.20	$	0.15
Diluted earnings per share of Class A Common Stock	$	0.20	$	0.15