CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2021	Sep. 27, 2020	Sep. 26, 2021	Sep. 27, 2020
Income Statement [Abstract]
Net revenues	$ 700,251	$ 628,301	$ 2,047,649	$ 1,825,977
Cost of goods sold	312,464	298,977	917,779	884,657
Gross profit	387,787	329,324	1,129,870	941,320
Selling, general and administrative expenses	205,194	171,673	632,501	510,662
Research and development expenses	31,816	29,218	95,046	85,978
Restructuring and impairment charges (credits)	959	(3,659)	20,451	16,692
Gain on sale of business	(91,157)	0	(91,157)	0
Income from continuing operations before interest and taxes	240,975	132,092	473,029	327,988
Interest expense	11,989	16,652	44,958	47,773
Interest income	(215)	(214)	(1,106)	(956)
Loss on extinguishment of debt	0	0	12,986	0
Income from continuing operations before taxes	229,201	115,654	416,191	281,171
Taxes (benefits) on income from continuing operations	29,695	(951)	58,535	21,971
Income from continuing operations	199,506	116,605	357,656	259,200
Operating loss from discontinued operations	(423)	(29)	(470)	(11)
Tax benefit on operating loss from discontinued operations	(98)	(11)	(109)	(4)
Loss from discontinued operations	(325)	(18)	(361)	(7)
Net income	$ 199,181	$ 116,587	$ 357,295	$ 259,193
Basic:
Income from continuing operations (in dollars per share)	$ 4.26	$ 2.51	$ 7.66	$ 5.58
Loss from discontinued operations (in dollars per share)	0	0	(0.02)	0
Net income (in dollars per share)	4.26	2.51	7.64	5.58
Diluted:
Income from continuing operations (in dollars per share)	4.20	2.46	7.54	5.48
Loss from discontinued operations (in dollars per share)	0	0	(0.01)	0
Net income (in dollars per share)	$ 4.20	$ 2.46	$ 7.53	$ 5.48
Weighted average common shares outstanding
Basic (in shares)	46,810	46,530	46,749	46,451
Diluted (in shares)	47,452	47,333	47,431	47,269