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Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2022
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table sets forth the computation of basic and diluted earnings per share (in millions, except per share data).

Three Months Ended June 30,Six Months Ended June 30,
2022202120222021
Basic and diluted earnings per share:
Numerator:
Net income, basic and diluted$72.2 $47.1 $130.7 $80.0 
Denominator: 
Basic weighted average common shares29.8 29.6 29.8 29.5 
Stock options, RSUs and PSUs0.5 0.8 0.6 0.8 
Weighted average shares used to calculate diluted earnings per share30.3 30.4 30.4 30.3 
Earnings per share:
Basic$2.42 $1.59 $4.39 $2.71 
Diluted$2.38 $1.55 $4.30 $2.64 
Antidilutive stock options, RSUs and PSUs0.2 — 0.1 —