Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Factors Used in Computation of Earnings Per Share

The factors used in the earnings per share computation follow:

	Three Months Ended September 30,				Nine Months Ended September 30,
(Dollars in thousands)	2020		2019		2020		2019
Basic
Net income to common stockholders	$	22,005	$	14,317	$	30,995	$	41,835
Weighted average common shares outstanding	24,592,092		25,621,054		24,298,897		26,228,499
Basic earnings per common share	$	0.89	$	0.56	$	1.28	$	1.60
Diluted
Net income to common stockholders	$	22,005	$	14,317	$	30,995	$	41,835
Weighted average common shares outstanding	24,592,092		25,621,054		24,298,897		26,228,499
Dilutive effects of:
Assumed exercises of stock options	48,102		60,068		53,232		61,054
Restricted stock awards	67,907		45,631		65,893		40,572
Restricted stock units	18,192		3,045		15,198		57
Performance stock units - market based	76,095		4,673		30,995		1,558
Performance stock units - performance based	—		—		—		—
Average shares and dilutive potential common shares	24,802,388		25,734,471		24,464,215		26,331,740
Diluted earnings per common share	$	0.89	$	0.56	$	1.27	$	1.59

Schedule of Shares not Considered in Computing Diluted Earnings per Common Share

Shares that were not considered in computing diluted earnings per common share because they were antidilutive are as follows:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2020	2019	2020	2019
Stock options	98,513	67,023	98,513	67,023
Restricted stock awards	—	3,209	—	3,209
Restricted stock units	—	—	—	54,077
Performance stock units - market based	—	55,228	—	55,228
Performance stock units - performance based	261,125	—	261,125	—