Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2018

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, except per share amounts)	2018			2017		2016
Basic (loss) earnings per share:
Numerator:
Allocation of net (loss) income	$	(26,691	)	$	5,879	$	24,885
Denominator:
Weighted-average shares outstanding		22,705			21,799		20,917
Basic (loss) earnings per share	$	(1.18	)	$	0.27	$	1.19
Diluted (loss) earnings per share:
Numerator:
Allocation of net (loss) income	$	(26,691	)	$	5,879	$	24,885
Denominator:
Number of shares used in basic computation		22,705			21,799		20,917
Weighted-average effect of dilutive securities
Add: Director and employee stock options		—			843		613
Number of shares used in per share computations		22,705			22,642		21,530
Diluted (loss) earnings per share	$	(1.18	)	$	0.26	$	1.16

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, except per share amounts)	2018			2017		2016
Basic and diluted (loss) earnings per share:
Numerator:
Allocation of net (loss) income	$	(6,069	)	$	1,237	$	5,916
Denominator:
Weighted-average shares outstanding		5,577			5,577		5,577
Basic and diluted (loss) earnings per share	$	(1.09	)	$	0.22	$	1.06