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 September 30,				Nine Months Ended September 30,
	2025		2024		2025		2024
Numerator — basic and diluted
Net income	$	82,818	$	66,466	$	216,340	$	230,378
Denominator
Weighted average number of common shares outstanding — basic	31,523		35,315		33,266		35,172
Effect of dilutive share-based awards	272		521		322		527
Effect of dilutive stock options	28		56		37		143

Weighted average number of common shares outstanding — diluted	31,823		35,892		33,625		35,842
Earnings per common share — basic	$	2.63	$	1.88	$	6.50	$	6.55
Earnings per common share — diluted	$	2.60	$	1.85	$	6.43	$	6.43
Antidilutive stock options and share-based awards	224		19		236		27