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Earnings (Loss) per Share
12 Months Ended
Dec. 31, 2024
Earnings Per Share [Abstract]  
Earnings (Loss) per Share Earnings (Loss) per Share
Years Ended December 31,
In millions (except share (in thousands) and per share data)202420232022
Net income (loss) $(430.3)$(5.4)$211.6 
Basic and Diluted earnings (loss) per share (1)
Basic earnings (loss) per share$(11.85)$(0.15)$5.54 
Diluted earnings (loss) per share$(11.85)$(0.15)$5.50 
Shares
Weighted average number of shares of common stock outstanding - Basic36,323 36,496 38,179 
Weighted average additional shares assuming conversion of potential common shares (2)
— — 292 
Shares - diluted basis36,323 36,496 38,471 
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(1) Diluted earnings (loss) per share is calculated using net income (loss) available to common stockholders divided by diluted weighted average shares of common shares outstanding during each period, which includes the dilutive effect of outstanding equity awards.
(2) For the years ended December 31, 2024 and 2023, all potentially dilutive common shares were excluded from the calculation of diluted earnings (loss) per share as we had a net loss for the period.
The following average number of potential common shares were antidilutive and, therefore, were not included in the diluted earnings per share calculation:
Years Ended December 31,
In thousands202420232022
Average number of potential common shares - antidilutive444 571 204