Quarterly Consolidated Financial Data (unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

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, 2018 and 2017

	Quarters Ended
	March 31, 2018		June 30, 2018		September 30, 2018		December 31, 2018		Total
Revenue	$	73,096	$	77,476	$	60,432	$	62,780	$	273,784
Gross profit		42,421		41,736		31,454		32,668		148,279
Income before income taxes		17,674		17,290		8,368		10,014		53,346
Net income		15,130		14,697		7,187		8,082		45,096
Income per share:
Basic	$	0.48	$	0.46	$	0.23	$	0.26	$	1.42
Diluted	$	0.47	$	0.45	$	0.22	$	0.26	$	1.40
Weighted average number of shares outstanding:
Basic		31,662		31,859		31,901		31,268		31,671
Diluted		32,317		32,437		32,408		31,645		32,200

	Quarters Ended
	March 31, 2017		June 30, 2017		September 30, 2017		December 31, 2017			Total
Revenue	$	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