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Consolidated Statements of Income - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Mar. 25, 2017
Mar. 26, 2016
Mar. 28, 2015
Consolidated Statements of Income [Abstract]      
Net sales $ 1,538,940 $ 1,169,251 $ 916,568
Cost of sales 781,125 614,411 490,820
Gross profit 757,815 554,840 425,748
Operating expenses:      
Research and development 303,658 269,217 197,878
Selling, general and administrative 127,265 117,082 99,509
Acquisition related costs     18,137
Restructuring and other, net     1,455
Asset impairment 9,842    
Patent agreement and other   (11,670)  
Total operating expenses 440,765 374,629 316,979
Income from operations 317,050 180,211 108,769
Interest income 1,676 877 579
Interest expense (3,600) (3,308) (5,627)
Other expense (79) (1,791) (12,172)
Income before income taxes 315,047 175,989 91,549
Provision for income taxes 53,838 52,359 36,371
Net income $ 261,209 $ 123,630 $ 55,178
Basic earnings per share $ 4.12 $ 1.96 $ 0.88
Diluted earnings per share $ 3.92 $ 1.87 $ 0.85
Basic weighted average common shares outstanding 63,329 63,197 62,503
Diluted weighted average common shares outstanding 66,561 65,993 65,235