Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net sales	$ 1,149,778	$ 1,027,447	$ 917,760
Cost of sales	634,095	608,616	550,893
Gross profit	515,683	418,831	366,867
Selling, general and administrative expense	262,761	226,716	187,864
Provision for legal settlement	32,000	32,000	0
Operating income	220,922	160,115	179,003
Interest expense	14,619	15,091	13,887
Interest income	(505)	(294)	(173)
Income before income taxes	206,808	145,318	165,289
Provision for income taxes	76,567	55,930	63,358
Total income before income taxes	$ 130,241	$ 89,388	$ 101,931
Basic net income per share	$ 0.66	$ 0.46	$ 0.52
Diluted net income per share	$ 0.65	$ 0.45	$ 0.52
Basic weighted average shares	196,363,084	195,933,800	195,735,309
Diluted weighted average shares	199,348,746	198,047,453	197,852,932