Net Income Per Common Share - Summary of Earnings Per Share Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Basic net income per common share:
Net income	$ 126.3	$ 16.1	$ 31.7
Weighted average common shares outstanding - Basic (in shares)	84.4	84.1	83.8
Basic net income per common share	$ 1.50	$ 0.19	$ 0.38
Diluted net income per common share:
Weighted average common shares outstanding - Basic (in shares)	84.4	84.1	83.8
Plus incremental shares from assumed conversions:
Weighted average common shares outstanding -Dilutive (in shares)	85.0	84.6	84.0
Dilutive net income per common share	$ 1.49	$ 0.19	$ 0.38
Anti-dilutive shares outstanding, excluded from computation (in shares)	0.8	0.6	0.9
Restricted Stock Units
Plus incremental shares from assumed conversions:
Incremental shares from assumed conversions	0.4	0.3	0.1
Stock Options
Plus incremental shares from assumed conversions:
Incremental shares from assumed conversions	0.2	0.2	0.1