Quarterly Consolidated Financial Data (unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Consolidated Financial Data Unaudited [Abstract]

Schedule of Consolidated Quarterly Financial Information

The following tables present certain unaudited consolidated quarterly financial information for the years ended December 31, 2017 and December 31, 2016.

	Quarters Ended
	March 31, 2017		June 30, 2017		September30, 2017		December 31, 2017			Total
Revenues	$	60,679	$	67,418	$	66,920	$	60,081		$	255,098
Gross profit		31,868		35,456		35,145		32,126			134,595
Income before income taxes		9,607		12,752		25,663		11,780			59,802
Net income (loss)		7,151		9,193		17,369		(804	)		32,909
Income (loss) per share:
Basic	$	0.23	$	0.29	$	0.55	$	(0.03	)	$	1.05
Diluted	$	0.22	$	0.29	$	0.54	$	(0.03	)	$	1.02
Weighted average number of shares outstanding:
Basic		31,290		31,501		31,571		31,597			31,491
Diluted		32,058		32,146		32,170		31,597			32,162

	Quarters Ended
	March 31, 2016		June 30, 2016		September 30, 2016		December 31, 2016		Total
Revenues	$	54,362	$	62,701	$	61,641	$	54,076	$	232,780
Gross profit		29,045		34,193		32,449		27,864		123,551
Income before income taxes		19,561		10,593		12,970		6,744		49,868
Net income		13,939		7,601		9,286		6,126		36,952
Income per share:
Basic	$	0.45	$	0.25	$	0.30	$	0.20	$	1.19
Diluted	$	0.44	$	0.24	$	0.30	$	0.19	$	1.16
Weighted average number of shares outstanding:
Basic		30,957		30,779		30,988		31,085		31,128
Diluted		31,654		31,754		31,459		32,018		31,790