Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator
Net income	$ 18.2	$ 8.0	$ 38.7	$ 2.9
Less: Net income attributable to participating securities	(0.7)	(0.1)	(1.3)	(0.1)
Net income attributable to common shareholders - Basic and Dilutive	$ 17.5	$ 7.9	$ 37.4	$ 2.8
Denominators
Basic - Weighted-average shares outstanding	121.9	120.4	121.4	120.1
Basic - Less: Weighted-average participating securities	(4.3)	(3.4)	(4.0)	(4.0)
Basic - Weighted-average common shares outstanding	117.6	117.0	117.4	116.1
Effect of dilutive securities - dilutive stock-based compensation	0.1	0.2	0.1	0.2
Diluted - Adjusted weighted-average shares after assumed conversions	117.7	117.2	117.5	116.3
Basic EPS	$ 0.15	$ 0.07	$ 0.32	$ 0.02
Diluted EPS	$ 0.15	$ 0.07	$ 0.32	$ 0.02

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