CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net sales	$ 2,113,043	$ 2,020,668	$ 2,147,767
Cost of sales	1,182,276	1,116,353	1,198,452
Gross profit	930,767	904,315	949,315
Selling, general and administrative expenses	498,994	479,408	504,419
Loss (gain) on sale of businesses - net	22,298	(18,070)	0
Restructuring expenses	3,674	11,239	13,672
Operating income	405,801	431,738	431,224
Other (income) expense - net	(8,327)	(2,243)	(3,111)
Interest expense	45,616	41,636	41,895
Income before income taxes	368,512	392,345	392,440
Provision for income taxes	97,403	109,538	113,054
Net income	$ 271,109	$ 282,807	$ 279,386
Earnings per common share:
Basic earnings per common share (in dollar per share)	$ 3.57	$ 3.65	$ 3.48
Diluted earnings per common share (in dollar per share)	$ 3.53	$ 3.62	$ 3.45
Share data:
Basic weighted average common shares outstanding (in shares)	75,803	77,126	79,715
Diluted weighted average common shares outstanding (in shares)	76,758	77,972	80,728