Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Summary of earnings per share

Earnings per share consisted of the following components for the periods indicated:

	Three Months Ended				Nine Months Ended
	September 30				September 30
	2020		2019		2020		2019
	(Dollars in thousands, except per share data)
Net income	$	34,873	$	51,845	$	86,526	$	117,698
Weighted Average Shares
Basic shares	32,951,918		34,361,176		33,358,879		32,283,196
Effect of dilutive securities	24,758		39,390		27,871		45,416
Diluted shares	32,976,676		34,400,566		33,386,750		32,328,612
Net income per share
Basic EPS	$	1.06	$	1.51	$	2.59	$	3.65
Effect of dilutive securities	—		—		—		(0.01)
Diluted EPS	$	1.06	$	1.51	$	2.59	$	3.64

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

As a result of the anti-dilution, the potential common shares excluded from the calculation of diluted earnings per share are as follows:

	Three Months Ended		Nine Months Ended
	September 30		September 30
	2020	2019	2020	2019
Stock options	10,000	5,000	10,000	—
Performance-based restricted stock	—	—	11,080	—