Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Summary of Reconciliation of Numerators and Denominators Used in Basic and Diluted Per Share Computations

We present below a reconciliation of the numerators and denominators we used in the basic and diluted per share computations for our Class A common stock:

	Year Ended December 31,
(in thousands)	2021		2020		2019
Basic earnings per share:
Numerator:
Allocation of net income	$	21,131	$	43,609	$	38,718
Denominator:
Weighted-average shares outstanding		25,388		23,707		22,986
Basic earnings per share	$	0.83	$	1.84	$	1.68
Diluted earnings per share:
Numerator:
Allocation of net income	$	21,131	$	43,609	$	38,718
Denominator:
Number of shares used in basic computation		25,388		23,707		22,986
Weighted-average effect of dilutive securities
Add: Director and employee stock options		146		180		211
Number of shares used in per share computations		25,534		23,887		23,197
Diluted earnings per share	$	0.83	$	1.83	$	1.67

We used the following information in the basic and diluted per share computations for our Class B common stock:

	Year Ended December 31,
(in thousands)	2021		2020		2019
Basic and diluted earnings per share:
Numerator:
Allocation of net income	$	4,123	$	9,206	$	8,434
Denominator:
Weighted-average shares outstanding		5,577		5,577		5,577
Basic and diluted earnings per share	$	0.74	$	1.65	$	1.51