CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Net sales	$ 503,791	$ 533,179	$ 1,520,870	$ 1,623,868
Cost of sales	280,531	298,533	839,954	903,670
Gross profit	223,260	234,646	680,916	720,198
Selling, general and administrative expenses	114,794	123,799	360,784	383,428
Gain on sale of business	(18,070)	0	(18,070)	0
Restructuring expenses	4,723	0	4,723	0
Operating income	121,813	110,847	333,479	336,770
Other (income) expense — net	(693)	(944)	(1,589)	(1,651)
Interest expense	10,229	10,461	31,410	31,323
Income before income taxes	112,277	101,330	303,658	307,098
Provision for income taxes	32,772	29,889	88,614	89,332
Net income	$ 79,505	$ 71,441	$ 215,044	$ 217,766
Basic earnings per common share (in dollars per share)	$ 1.03	$ 0.89	$ 2.77	$ 2.70
Diluted earnings per common share (in dollars per share)	$ 1.02	$ 0.88	$ 2.75	$ 2.68
Share data:
Basic weighted average common shares outstanding (in shares)	76,831	79,558	77,431	80,064
Diluted weighted average common shares outstanding (in shares)	77,646	80,561	78,266	81,093