Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data (Unaudited)

Selected Quarterly Financial Data (Unaudited)

	December 31		September 30		June 30		March 31
	(in thousands, except for per share data)
2016
Total revenues	$	2,477,541	$	2,290,188	$	2,105,204	$	1,957,736
Gross profit	823,122		757,344		632,106		588,196
Net income	66,748		51,517		40,755		27,658
Earnings per share:
Basic	$	0.16	$	0.12	$	0.10	$	0.06
Diluted	0.15		0.12		0.09		0.06
2015
Total revenues	$	1,823,333	$	1,738,355	$	1,644,694	$	1,573,129
Gross profit	573,968		564,397		522,942		526,728
Net income	43,178		29,432		26,335		23,696
Earnings per share:
Basic	$	0.10	$	0.07	$	0.06	$	0.06
Diluted	0.10		0.07		0.06		0.05