v3.26.1
Net Loss Per Common Share - Computations of Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Earnings Per Share [Abstract]            
Net loss $ (8.4) $ (24.0) $ (19.9) $ (27.9) $ (32.4) $ (47.8)
Basic weighted average common shares (in shares) 20.5   19.2   20.0 18.2
Effect of dilutive securities - dilutive securities (in shares) 0.0   0.0   0.0 0.0
Diluted weighted average common shares (in shares) 20.5   19.2   20.0 18.2
Basic net loss per common share (in dollars per share) $ (0.41)   $ (1.04)   $ (1.62) $ (2.63)
Diluted net loss per common share (in dollars per share) $ (0.41)   $ (1.04)   $ (1.62) $ (2.63)