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 June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
Numerator — basic and diluted
Net income	$	71,698	$	83,947	$	133,522	$	163,912
Denominator
Weighted average number of common shares outstanding — basic	33,261		35,221		34,152		35,099
Effect of dilutive share-based awards	293		513		347		531
Effect of dilutive stock options	37		111		42		186

Weighted average number of common shares outstanding — diluted	33,591		35,845		34,541		35,816
Earnings per common share — basic	$	2.16	$	2.38	$	3.91	$	4.67
Earnings per common share — diluted	$	2.13	$	2.34	$	3.87	$	4.58
Antidilutive stock options and share-based awards	260		40		241		32