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Earnings per Share
 12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Earnings per Share
19. Earnings per Share

Basic and diluted earnings per share were computed as follows:
 Years Ended December 31,
(in millions, except per share amounts)202120202019
Earnings from continuing operations$150.2 $2.9 $49.7 
Earnings (loss) from discontinued operations, net0.2 3.7 (0.6)
Net earnings $150.4 $6.6 $49.1 
Basic earnings (loss) per common share:
Earnings from continuing operations$1.63 $0.03 $0.55 
Earnings (loss) from discontinued operations, net— 0.04 (0.01)
Net earnings $1.63 $0.07 $0.54 
Weighted-average shares outstanding 92.3 91.7 91.2 
Diluted earnings (loss) per common share:
Earnings from continuing operations$1.59 $0.03 $0.53 
Earnings (loss) from discontinued operations, net— 0.04 — 
Net earnings $1.59 $0.07 $0.53 
Diluted weighted-average shares outstanding 94.7 92.9 93.4 
The Company intended to settle the principal amount of the Notes in cash during all periods preceding settlement. The treasury stock method was used to calculate the dilutive effect of the conversion option on diluted earnings per share, if applicable. For the years ended December 31, 2021, 2020, and 2019, the weighted-average number of anti-dilutive potential common shares for stock-based awards excluded from the calculation of diluted earnings per share above was 0.7 million, 3.9 million, and 2.8 million, respectively.