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EARNINGS PER SHARE
 6 Months Ended
Jun. 30, 2023
Earnings Per Share [Abstract]  
EARNINGS PER SHARE EARNINGS PER SHARE The two-class method is utilized for the computation of the Company’s EPS. The two-class method requires a portion of net income to be allocated to participating securities, which are unvested awards of share-based payments with non-forfeitable rights to receive dividends that are paid in cash. The Company’s RSAs are participating securities. Income allocated to these participating securities is excluded from net earnings available to common shares, as shown in the table below. Basic EPS is computed by dividing net income available to basic common shares by the weighted average number of basic common shares outstanding during the period. Diluted EPS is computed by dividing net income available to diluted common shares by the weighted average number of dilutive common shares outstanding during the period. The following table sets forth the calculation of EPS (in millions, except share and per share data):
 Three Months Ended June 30,Six Months Ended June 30,
 2023202220232022
Weighted average basic common shares outstanding13,777,225 15,956,258 13,819,024 16,241,221 
Dilutive effect of stock-based awards and employee stock purchases 40,058 56,024 46,711 56,143 
Weighted average dilutive common shares outstanding13,817,283 16,012,282 13,865,736 16,297,364 
Basic:
Net income$170.5 $195.9 $329.0 $398.9 
Less: Earnings allocated to participating securities from continuing operations4.2 5.5 8.2 11.3 
Less: Earnings (loss) allocated to participating securities from discontinued operations— (0.1)— — 
Net income available to basic common shares$166.4 $190.6 $320.7 $387.6 
Basic earnings per common share$12.08 $11.94 $23.21 $23.87 
Diluted:
Net income$170.5 $195.9 $329.0 $398.9 
Less: Earnings allocated to participating securities from continuing operations4.1 5.4 8.2 11.3 
Less: Earnings (loss) allocated to participating securities from discontinued operations— (0.1)— — 
Net income available to diluted common shares$166.4 $190.6 $320.8 $387.6 
Diluted earnings per common share$12.04 $11.90 $23.13 $23.79