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Earnings per Share Earnings per Share (Tables)
 3 Months Ended
Mar. 31, 2021
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The table below presents a reconciliation between basic and diluted weighted average shares outstanding, net income, and basic and diluted income per share for the three months ended March 31, 2021 and 2020:
Three Months Ended
March 31,
(In thousands, except per share amounts)20212020
NUMERATOR
Net income$84,866 $31,746 
DENOMINATOR
Basic weighted average shares outstanding29,015 28,478 
Effect of dilutive securities:
Stock option awards431 310 
Deferred compensation awards297 221 
Diluted weighted average shares outstanding$29,743 $29,009 
Earnings per common share:
Basic$2.92 $1.11 
Diluted$2.85 $1.09 
Anti-dilutive equity awards not included in the calculation of diluted earnings per common share
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