Quarterly Financial Informaton (Tables)

12 Months Ended

Sep. 30, 2020

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Fiscal 2020
Net sales	$	244.0	$	257.5	$	204.2	$	282.6
Gross profit	91.3		88.2		68.7		89.8
Net earnings including NCI	31.8		18.6		14.2		35.5
Net earnings available to Class A Common Stockholders	6.0		4.2		3.3		10.0
Basic earnings per share of Class A Common Stock	$	0.15	$	0.11	$	0.08	$	0.25
Diluted earnings per share of Class A Common Stock	$	0.15	$	0.11	$	0.08	$	0.26
Fiscal 2019
Net sales	$	185.8	$	216.5	$	237.6	$	214.5
Gross profit	65.6		79.0		90.5		76.7
Net earnings including NCI	25.1		31.0		40.3		26.7
Net earnings available to Class A Common Stockholders	—		—		—		—
Basic earnings per share of Class A Common Stock	$	—	$	—	$	—	$	—
Diluted earnings per share of Class A Common Stock	$	—	$	—	$	—	$	—