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CONSOLIDATED STATEMENTS OF OPERATIONS CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Thousands
 12 Months Ended
Jan. 01, 2022
Jan. 02, 2021
Dec. 28, 2019
Income Statement [Abstract]      
Product $ 1,239,153,000 $ 1,143,744,000 $ 936,408,000
Royalty and other revenue 0 0 1,429,000
Total revenue 1,239,153,000 1,143,744,000 937,837,000
Cost of goods sold 430,806,000 400,679,000 308,665,000
Gross profit 808,347,000 743,065,000 629,172,000
Selling, general and administrative 395,291,000 369,057,000 314,661,000
Research and development 137,234,000 118,659,000 93,295,000
Litigation awards, settlements/or defense costs 0 (474,000) 0
Total operating expenses 532,525,000 487,242,000 407,956,000
Operating income 275,822,000 255,823,000 221,216,000
Non-operating (loss) income (1,442,000) 7,913,000 12,950,000
Income before provision for income taxes 274,380,000 263,736,000 234,166,000
Provision for income taxes 44,733,000 23,454,000 37,950,000
Net income $ 229,647,000 $ 240,282,000 $ 196,216,000
Basic $ 4.16 $ 4.39 $ 3.67
Diluted $ 3.98 $ 4.14 $ 3.44
Basic 55,166 54,700 53,434
Diluted 57,682 58,037 57,100