Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Data [Abstract]

Schedule of quarterly financial information (unaudited)

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
	(In thousands, except per share amounts)
2016
Net revenues	$	825,678	$	842,980	$	841,251	$	908,356	$	3,418,265
Gross margin	686,586		698,658		703,276		770,204		2,858,724
Income from operations	110,954		153,087		153,827		231,290		649,158
Net income	83,463		120,898		131,901		199,850		536,112
Earnings per share - basic	0.54		0.78		0.85		1.28		3.46
Earnings per share - diluted	0.54		0.77		0.84		1.26		3.41
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total Year
	(In thousands, except per share amounts)
2015
Net revenues	$	760,802	$	796,759	$	813,270	$	904,763	$	3,275,594
Gross margin	628,196		664,008		667,016		702,010		2,661,230
Income from operations	51,732		122,149		63,798		112,406		350,085
Net income	28,887		103,275		55,925		131,274		319,361
Earnings per share - basic	0.18		0.64		0.35		0.85		2.01
Earnings per share - diluted	0.18		0.64		0.35		0.84		1.99