CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net sales	$ 490,617	$ 479,859	$ 1,503,510	$ 1,463,420
Cost of sales	279,108	285,019	857,155	862,578
Gross profit	211,509	194,840	646,355	600,842
Selling, general and administrative expenses	114,140	107,167	354,715	332,431
Restructuring expenses	0	7,085	0	14,604
Operating income	97,369	80,588	291,640	253,807
Other income (expense) — net	(188)	132	518	19
Interest expense	10,570	10,536	31,724	31,734
Income before income taxes	86,611	70,184	260,434	222,092
Provision for income taxes	22,812	20,057	72,774	65,443
Net income	$ 63,799	$ 50,127	$ 187,660	$ 156,649
Basic earnings per common share (in dollars per share)	$ 0.78	$ 0.60	$ 2.28	$ 1.88
Diluted earnings per common share (in dollars per share)	$ 0.78	$ 0.60	$ 2.27	$ 1.87
Share data:
Basic weighted average common shares outstanding (in shares)	81,259	82,482	81,762	82,820
Diluted weighted average common shares outstanding (in shares)	82,218	83,370	82,701	83,785