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Condensed Consolidated Statements of Income (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended
Apr. 01, 2023
Mar. 26, 2022
Income Statement [Abstract]    
Net sales $ 1,147,424 $ 1,172,662
Cost of goods sold 494,630 510,183
Gross profit 652,794 662,479
Advertising expense 30,347 34,133
Selling, general and administrative expenses 203,980 190,784
Research and development expense 221,485 209,006
Total operating expense 455,812 433,923
Operating income 196,982 228,556
Other income (expense):    
Interest income 15,899 7,553
Foreign currency gains (losses) 7,688 (3,506)
Other income 1,203 3,261
Total other income (expense) 24,790 7,308
Income before income taxes 221,772 235,864
Income tax provision 19,445 24,272
Net income $ 202,327 $ 211,592
Net income per share: Basic    
Basic $ 1.06 $ 1.10
Net income per share: Diluted    
Diluted $ 1.05 $ 1.09
Weighted average common shares outstanding: Basic    
Basic 191,498 192,887
Weighted average common shares outstanding: Diluted    
Diluted 191,886 193,579