Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Components of Calculation of Basic and Diluted Earnings Per Share

The following table provides a reconciliation of the components used in the calculation of basic and diluted earnings per share for the periods presented:

	Three Months Ended September 30,					Nine Months Ended September 30,
	2018		2017			2018		2017
Net income (loss) - basic and diluted	$	16,276	$	(5,947	)	$	24,050	$	43,463
Weighted-average shares – basic	15,062		14,994			15,054		14,993
Effect of dilutive securities 1	282		—			224		69
Weighted-average shares – diluted	15,344		14,994			15,278		15,062

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¹  For the three months ended September 30, 2017, approximately 0.1 million potentially dilutive securities, represented by RSUs and PRSUs, had the effect of being anti-dilutive and were excluded from the calculation of diluted earnings per share.