Net Income Per Common Share (Tables)

3 Months Ended

Mar. 31, 2021

Basic and Diluted Net Income Per Common Share

Basic and diluted net income per common share are calculated as follows:

	Income (Numerator)		Shares (Denominator)		Per Share Amount
	(Dollars in thousands, except per share data)
Three Months Ended March 31, 2021
Basic
Income available to common stockholders	$	42,520		32,756,852	$	1.30
Dilutive effect of stock options		—		651,264
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	42,520		33,408,116	$	1.27
Three Months Ended March 31, 2020
Basic
Income available to common stockholders	$	22,608		32,679,587	$	0.69
Dilutive effect of stock options		—		607,772
Diluted
Income available to common stockholders plus assumed exercises of stock options	$	22,608		33,287,359	$	0.68

Average Exercise Price of Options Excluded from Computation of Diluted Net Income Per Common Share

The following table shows the number and average exercise price 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 March 31, 2021		110,144
Three Months Ended March 31, 2020		351,862