Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data (Unaudited)

NOTE 16. Selected Quarterly Financial Data (Unaudited)

The following table sets forth the selected quarterly financial data for each of the quarters in 2017 (in thousands, except per share amounts):

	Quarter Ended
	March 31,		June 30,		September 30,		December 31,
	2017		2017		2017		2017
Year Ended December 31, 2017:
Revenue	$	893,448	$	924,513	$	1,054,360	$	1,162,576
Gross margin		101,585		101,317		116,524		138,091
Operating income		17,177		16,578		21,669		41,127
Net income		10,334		9,542		15,334		99,943
Basic earnings per share	$	0.31	$	0.29	$	0.46	$	3.01
Diluted earnings per share	$	0.31	$	0.29	$	0.46	$	2.99

The following table sets forth the selected quarterly financial data for each of the quarters in 2016 (in thousands, except per share amounts):

	Quarter Ended
	March 31,		June 30,		September 30,		December 31,
	2016		2016		2016		2016
Year Ended December 31, 2016:
Revenue	$	805,859	$	855,557	$	932,814	$	978,560
Gross margin		108,387		114,490		111,454		120,454
Operating income		28,843		34,297		29,855		30,839
Net income		17,965		20,671		17,924		18,244
Basic earnings per share	$	0.51	$	0.61	$	0.54	$	0.55
Diluted earnings per share	$	0.51	$	0.61	$	0.54	$	0.55