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Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2023
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per share from net income for the respective periods and basic and diluted shares outstanding:
Three Months Ended March 31,
(In millions, except per share data)20232022
Basic earnings per share:
Net income $25.6 $25.6 
Weighted average number of shares outstanding32.0 32.0 
Basic earnings per share from net income$0.80 $0.80 
Diluted earnings per share:
Net income $25.6 $25.6 
Weighted average number of shares outstanding32.0 32.0 
Effect of dilutive securities:
Restricted stock0.1 0.1 
Total shares and dilutive securities32.1 32.1 
Diluted earnings per share from net income$0.80 $0.80