CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Net revenues	$ 2,146,303	$ 1,868,027	$ 1,809,690
Cost of goods sold	974,501	871,827	865,287
Gross profit	1,171,802	996,200	944,403
Selling, general and administrative expenses	699,963	563,308	568,982
Research and development expenses	84,770	58,579	52,119
Restructuring and impairment charges	14,790	59,227	7,819
Gain on sale of assets	0	(4,367)	(408)
Income from continuing operations before interest, loss on extinguishment of debt and taxes	372,279	319,453	315,891
Interest expense	82,546	54,941	61,323
Interest income	(771)	(474)	(532)
Loss on extinguishment of debt	5,593	19,261	10,454
Income from continuing operations before taxes	284,911	245,725	244,646
Taxes on income from continuing operations	129,648	8,074	7,838
Income from continuing operations	155,263	237,651	236,808
Operating loss from discontinued operations	(4,534)	(922)	(1,730)
Tax benefit on loss from discontinued operations	(1,801)	(1,112)	(10,635)
(Loss) income on discontinued operations	(2,733)	190	8,905
Net income	152,530	237,841	245,713
Less: Income from continuing operations attributable to noncontrolling interest	0	464	850
Net income	$ 152,530	$ 237,377	$ 244,863
Basic:
Income from continuing operations (in dollars per share)	$ 3.45	$ 5.47	$ 5.68
Income (loss) from discontinued operations (in dollars per share)	(0.06)	0.01	0.21
Net income (in dollars per share)	3.39	5.48	5.89
Diluted:
Income from continuing operations (in dollars per share)	3.33	4.98	4.91
Income (loss) from discontinued operations (in dollars per share)	(0.06)	0.00	0.19
Net income (loss), diluted (in dollar per share)	3.27	4.98	5.10
Dividends per share (in dollars per share)	$ 1.36	$ 1.36	$ 1.36
Weighted average common shares outstanding:
Basic (in shares)	45,004	43,325	41,558
Diluted (in shares)	46,664	47,646	48,058
Amounts attributable to common shareholders:
Income from continuing operations, net of tax	$ 155,263	$ 237,187	$ 235,958
(Loss) income from discontinued operations, net of tax	(2,733)	190	8,905
Net income	$ 152,530	$ 237,377	$ 244,863