Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data

Interim results are not necessarily indicative of fiscal year performance because of the impact of seasonal and short-term variations. Selected quarterly financial data is summarized as follows (in thousands, except per share data).

	Total Revenues		(Loss) Income Before Income Taxes			Net (Loss) Income			Basic and Diluted Net (Loss) Income Per Share
Year Ended December 31, 2017:
December 31, 2017	$	82,054	$	3,139		$	(10,429	)	$	(0.26	)
September 30, 2017		85,984		3,351			1,998			0.05
June 30, 2017		91,411		(1,480	)		(903	)		(0.02	)
March 31, 2017		88,069		1,576			730			0.02
Year Ended December 31, 2016:
December 31, 2016	$	87,806	$	(5,822	)	$	(3,545	)	$	(0.09	)
September 30, 2016		102,115		(327	)		(333	)		(0.01	)
June 30, 2016		102,754		(30,607	)		(19,899	)		(0.48	)
March 31, 2016		96,948		(8,374	)		(5,505	)		(0.13	)