The Company calculates earnings per share in accordance with ASC 260, Earnings Per Share. Basic earnings per share excludes dilution and is computed by dividing income available to common shareholders by the weighted average common shares outstanding during the period. Diluted earnings per share takes into account the potential dilution that could occur if securities, including stock options and RSUs or other contracts to issue common stock were exercised and converted into common stock. Stock options are dilutive if their exercise prices are less than the current stock price. RSUs are dilutive because they represent grants over vesting periods which do not require employees to pay exercise prices. The dilution shown in the tables below includes the potential dilution from both stock options and RSUs.

The following tables show the Company’s earnings per share for the periods presented:



	For the three months ended
	September 30, 2023
	Income		Shares		Per share
	(numerator)		(denominator)		amount
		(Dollars in thousands except share and per share data)
Basic earnings per share
Net earnings available to common shareholders	$	50,137		54,175,184	$	0.93
Effect of dilutive securities
Common stock options and RSUs		—		563,426		(0.01)
Diluted earnings per share
Net earnings available to common shareholders	$	50,137		54,738,610	$	0.92

Stock options for 465,104 shares, exercisable at prices between $6.87 and $18.81 per share, were outstanding at September 30, 2023, and included in the diluted earnings per share computation because the exercise price per share was less than the average market price. Stock options for 157,573 shares were anti-dilutive and not included in the earnings per share calculation.



	For the nine months ended
	September 30, 2023
	Income		Shares		Per share
	(numerator)		(denominator)		amount
		(Dollars in thousands except share and per share data)
Basic earnings per share
Net earnings available to common shareholders	$	148,268		54,828,547	$	2.70
Effect of dilutive securities
Common stock options and RSUs		—		507,807		(0.02)
Diluted earnings per share
Net earnings available to common shareholders	$	148,268		55,336,354	$	2.68



	For the three months ended
	September 30, 2022
	Income		Shares		Per share
	(numerator)		(denominator)		amount
		(Dollars in thousands except share and per share data)
Basic earnings per share
Net earnings available to common shareholders	$	30,604		56,429,425	$	0.54
Effect of dilutive securities
Common stock options and RSUs		—		578,799		—
Diluted earnings per share
Net earnings available to common shareholders	$	30,604		57,008,224	$	0.54

Stock options for 407,604 shares, exercisable at prices between $6.87 and $10.45 per share, were outstanding at September 30, 2022, and included in the diluted earnings per share computation because the exercise price per share was less than the average market price. Stock options for 200,000 shares were anti-dilutive and not included in the earnings per share calculation.



	For the nine months ended
	September 30, 2022
	Income		Shares		Per share
	(numerator)		(denominator)		amount
		(Dollars in thousands except share and per share data)
Basic earnings per share
Net earnings available to common shareholders	$	89,972		56,782,524	$	1.58
Effect of dilutive securities
Common stock options and RSUs		—		728,462		(0.02)
Diluted earnings per share
Net earnings available to common shareholders	$	89,972		57,510,986	$	1.56