Earnings per Share

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Earnings per Share

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:

	Year Ended December 31,
	2020		2019		2018
Net income (loss) – basic and diluted	$	(310,557)	$	70,589	$	224,785
Weighted-average shares – basic	15,176		15,110		15,059
Effect of dilutive securities 1	—		16		233
Weighted-average shares – diluted	15,176		15,126		15,292

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1     Represents a combination of unvested RSUs and PRSUs that are dilutive with the exception of December 31, 2019 at which time all of our unvested PRSUs were determined to be at a zero percent vesting level due to the relative performance of our common stock. For the year ended December 31, 2020, approximately 0.1 million potentially dilutive securities had the effect of being anti-dilutive and were excluded from the calculation of diluted earnings per common share.