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CONSOLIDATED STATEMENTS OF OPERATIONS CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Income Statement [Abstract]      
Product $ 936,408 $ 829,874 $ 738,242
Royalty and other revenue 1,429 28,415 52,006
Total revenue 937,837 858,289 790,248
Cost of goods sold 308,665 283,397 268,216
Gross profit 629,172 574,892 522,032
Selling, general and administrative 314,661 285,417 273,011
Research and development 93,295 81,006 65,234
Litigation settlement, award and/or defense costs 0 425 0
Total operating expenses 407,956 366,848 338,245
Operating income 221,216 208,044 183,787
Non-operating income 12,950 5,732 2,013
Income before provision for income taxes 234,166 213,776 185,800
Provision for income taxes 37,950 20,233 61,011
Net income $ 196,216 $ 193,543 $ 124,789
Basic $ 3.67 $ 3.70 $ 2.42
Diluted $ 3.44 $ 3.45 $ 2.23
Basic 53,434 52,296 51,516
Diluted 57,100 56,039 55,874