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Earnings per Common Share
 3 Months Ended
Mar. 31, 2025
Earnings Per Share [Abstract]  
Earnings per Common Share Earnings per Common Share
Basic earnings per common share is calculated by dividing net income by the weighted average number of common shares outstanding during the period. Diluted earnings per common share adjusts basic earnings per common share for the effects of potentially dilutive common shares. Potentially dilutive common shares include the dilutive effects of shares issuable upon exercise or vesting of outstanding awards under our equity compensation plans, including stock options and share-based awards (restricted share awards, restricted stock units and performance stock units), each using the treasury stock method.
 Three Months Ended March 31,
 20252024
Numerator — basic and diluted  
Net income$61,824 $79,965 
Denominator
Weighted average number of common shares outstanding — basic
35,053 34,977 
Effect of dilutive share-based awards401 549 
Effect of dilutive stock options46 261 
Weighted average number of common shares outstanding — diluted
35,500 35,787 
Earnings per common share — basic$1.76 $2.29 
Earnings per common share — diluted$1.74 $2.23 
Antidilutive stock options and share-based awards222 25