Loss Per Common Share - Schedule of Basic and Diluted Loss per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share [Abstract]
Net loss	$ (35.1)	$ (49.2)	$ (13.4)	$ (153.8)
Weighted average common shares outstanding - basic (in shares)	73.2	72.1	72.9	71.9
Weighted average common shares outstanding - diluted (in shares)	73.2	72.1	72.9	71.9
Loss per common share
Basic (in dollars per share)	$ (0.48)	$ (0.68)	$ (0.18)	$ (2.14)
Diluted (in dollars per share)	$ (0.48)	$ (0.68)	$ (0.18)	$ (2.14)