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Net Income (Loss) per Common Share (Tables)
3 Months Ended
Mar. 31, 2023
Earnings Per Share [Abstract]  
Schedule of Earnings (Loss) Per Share, Basic and Diluted
The following table presents the computation of basic and diluted net income (loss) per share under the two-class method for the three months ended March 31, 2023 and 2022 (in millions, except for per share amounts):
Three Months Ended
March 31,
20232022
Net income from continuing operations13.3 21.8 
Less: Distributed net income available to participating securities(0.1)0.0 
Less: Undistributed net income available to participating securities0.0 (0.1)
Numerator for basic net income per share:
Undistributed and distributed net income available to common shareholders$13.2 $21.7 
Add: Undistributed net income allocated to participating securities0.0 0.1 
Less: Undistributed net income reallocated to participating securities0.0 (0.1)
Numerator for diluted net income per share:
Undistributed and distributed net income available to common shareholders13.2 21.7 
Denominator:
Weighted average shares outstanding for basic net income per share38.137.9
Effect of dilutive securities0.10.2
Weighted average shares outstanding for diluted net income per share38.238.1 
Net income per share from continuing operations:
Basic$0.35 $0.57 
Diluted$0.35 $0.57 
Net (loss) income from discontinued operations$(0.1)$0.2 
Net (loss) income per share from discontinued operations:
Basic$0.00 $0.01 
Diluted$0.00 $0.01 
Net income per share:
Basic$0.35 $0.58 
Diluted$0.35 $0.58 
Potentially dilutive securities0.2 0.1