Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2021

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The net income available to common stockholders and weighted average number of common shares outstanding used to compute basic and diluted earnings per share for each class of common stock are as follows (in thousands, except per share amounts):


	Three months ended March 31,
	2021		2020
Distributed earnings	$	15,396	$	12,868
Undistributed earnings	16,932		15,811
Net income	$	32,328	$	28,679

Class A common stock:
Basic net income available to common stockholders	$	21,809	$	19,266
Basic weighted average common shares outstanding	27,317		26,992
Basic earnings per share	$	0.80	$	0.71

Diluted net income available to common stockholders	$	21,912	$	19,353
Effect of potential exercise of stock options	401		375
Diluted weighted average common shares outstanding	27,718		27,367
Diluted earnings per share	$	0.79	$	0.71

Class B common stock:
Basic net income available to common stockholders	$	10,519	$	9,413
Basic weighted average common shares outstanding	13,177		13,187
Basic earnings per share	$	0.80	$	0.71

Diluted net income available to common stockholders	$	10,416	$	9,326
Diluted weighted average common shares outstanding	13,177		13,187
Diluted earnings per share	$	0.79	$	0.71