Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Net earnings available to common stockholders for basic earnings per share	$ 44.2	$ 8.2
Dilutive impact of net earnings attributable to NCI	0.0	0.1
Net earnings available to common stockholders for diluted earnings per share	$ 44.2	$ 8.3
Weighted Average shares of Common Stock Outstanding, basic (in shares)	134.9	39.4
Weighted-Average shares of Common Stock Outstanding, diluted (in shares)	135.1	39.6
Earnings per share of Common Stock, basic (in USD per share)	$ 0.33	$ 0.21
Earnings per share of Common Stock, diluted (in USD per share)	$ 0.33	$ 0.21
Restricted Stock Units (RSUs)
Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Dilutive restricted stock units, (in shares)	0.2	0.2
Antidilutive securities excluded from computation of earnings per share, amount	0.2	0.0
Performance-Based Restricted Stock Units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method
Antidilutive securities excluded from computation of earnings per share, amount	0.5	0.0