Net Income Per Common Share

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Net Income Per Common Share

(9) NET INCOME PER COMMON SHARE

Basic and diluted net income per common share based on weighted-average shares outstanding are calculated as follows:

	Income (Numerator)		Shares (Denominator)		Per Share Amount
	(Dollars in thousands, except per share data)
Three Months Ended June 30, 2019
Basic
Income available to common stockholders	$	34,167		32,629,146	$	1.04
Dilutive effect of stock options		—		688,047
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	34,167		33,317,193	$	1.02
Three Months Ended June 30, 2018
Basic
Income available to common stockholders	$	30,586		32,716,350	$	0.93
Dilutive effect of stock options		—		742,207
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	30,586		33,458,557	$	0.91
Six Months Ended June 30, 2019
Basic
Income available to common stockholders	$	66,004		32,620,819	$	2.02
Dilutive effect of stock options		—		685,610
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	66,004		33,306,429	$	1.98
Six Months Ended June 30, 2018
Basic
Income available to common stockholders	$	60,206		32,645,693	$	1.84
Dilutive effect of stock options		—		744,269
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	60,206		33,389,962	$	1.80

The following table shows the number of options that were excluded from the computation of diluted net income per common share for each period because the options were anti-dilutive for the period:

	Shares
Three Months Ended June 30, 2019		158,500
Three Months Ended June 30, 2018		85,802
Six Months Ended June 30, 2019		169,301
Six Months Ended June 30, 2018		117,696