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Earnings (Loss) Per Share (EPS)
 12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
10. EARNINGS (LOSS) PER SHARE (EPS)

We present EPS using the two-class method. This method allocates undistributed earnings between common shares and non-vested share based payment awards that entitle the holder to non-forfeitable dividend rights. Our participating securities are our non-vested restricted stock units.

The following table sets forth the computation of our basic and diluted EPS available to shareholders of common stock (excluding participating securities):
202320222021
(in millions, except per share data)
Numerator
Net income (loss)$(33.6)$64.3 $5.9 
Less: Net income allocated to participating securities— (2.7)(0.2)
Net income (loss) attributable to common shareholders - Basic and Dilutive$(33.6)$61.6 $5.7 
Denominators
Basic common shares outstanding -
Weighted-average shares outstanding120.3 119.4 118.5 
Less: Weighted-average participating securities(3.7)(4.9)(4.6)
Weighted-average common shares outstanding116.6 114.5 113.9 
Effect of dilutive securities -
Dilutive stock-based compensation— 1.0 0.2 
Diluted shares outstanding -
Adjusted weighted-average shares after assumed conversions116.6 115.5 114.1 
Basic EPS$(0.29)$0.54 $0.05 
Diluted EPS$(0.29)$0.53 $0.05 
Basic and diluted loss per share are the same in 2023 because the effect of potentially dilutive stock-based compensation would have been antidilutive. Excluded potentially dilutive shares were 0.3 million in 2023.