CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
Income Statement [Abstract]
Net revenues	$ 457,173	$ 413,796	$ 1,363,824	$ 1,245,732
Cost of goods sold	221,007	209,804	662,411	631,730
Gross profit	236,166	203,992	701,413	614,002
Selling, general and administrative expenses	138,252	115,228	425,392	358,431
Research and development expenses	14,871	15,638	43,803	47,169
Restructuring and other impairment charges	1,108	7,084	16,511	29,205
Income from continuing operations before interest, loss on extingushments of debt and taxes	81,935	66,042	215,707	179,197
Interest expense	17,184	13,948	48,650	42,566
Interest income	(161)	(144)	(494)	(458)
Loss on extinguishments of debt	0	1,250	0	1,250
Income from continuing operations before taxes	64,912	50,988	167,551	135,839
Taxes on income from continuing operations	9,684	5,209	28,224	18,958
Income from continuing operations	55,228	45,779	139,327	116,881
Operating income (loss) from discontinued operations	(247)	38	(1,866)	(1,746)
Taxes (benefit) on income (loss) from discontinued operations	24	(991)	(345)	(1,547)
Income (loss) from discontinued operations	(271)	1,029	(1,521)	(199)
Net income	54,957	46,808	137,806	116,682
Less: Income from continuing operations attributable to noncontrolling interest	126	234	765	629
Net income attributable to common shareholders	54,831	46,574	137,041	116,053
Basic:
Income from continuing operations (in dollars per share)	$ 1.33	$ 1.11	$ 3.35	$ 2.83
Income (loss) from discontinued operations (in dollars per share)	$ (0.01)	$ 0.02	$ (0.04)	$ (0.01)
Net income (in dollars per share)	$ 1.32	$ 1.13	$ 3.31	$ 2.82
Diluted:
Income from continuing operations (in dollars per share)	$ 1.18	$ 1.05	$ 3.00	$ 2.69
Income (loss) from discontinued operations (in dollars per share)	$ 0.00	$ 0.03	$ (0.04)	$ (0.01)
Net income (in dollars per share)	$ 1.18	$ 1.08	$ 2.96	$ 2.68
Dividends per share	$ 0.34	$ 0.34	$ 1.02	$ 1.02
Weighted average common shares outstanding
Basic (in shares)	41,399	41,132	41,347	41,087
Diluted (in shares)	46,628	43,264	46,256	43,246
Amounts attributable to common shareholders:
Income from continuing operations, net of tax	55,102	45,545	138,562	116,252
Income (loss) from discontinued operations, net of tax	(271)	1,029	(1,521)	(199)
Net income attributable to common shareholders	$ 54,831	$ 46,574	$ 137,041	$ 116,053