UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	May 02, 2020	May 04, 2019
Income Statement [Abstract]
Net revenue	$ 693,641	$ 662,452
Cost of goods sold	366,739	301,024
Gross profit	326,902	361,428
Operating expenses:
Research and development	279,584	266,867
Selling, general and administrative	122,027	110,005
Restructuring related charges	21,287	5,682
Total operating expenses	422,898	382,554
Operating loss	(95,996)	(21,126)
Interest income	1,058	1,268
Interest expense	(16,830)	(21,203)
Other income (loss), net	3,754	(116)
Interest and other income (loss), net	(12,018)	(20,051)
Loss before income taxes	(108,014)	(41,177)
Provision for income taxes	5,019	7,273
Net loss	$ (113,033)	$ (48,450)
Net income (loss) per share - Basic (in usd per share)	$ (0.17)	$ (0.07)
Net income (loss) per share - Diluted (in usd per share)	$ (0.17)	$ (0.07)
Weighted-average shares:
Basic (in shares)	663,547	658,963
Diluted (in shares)	663,547	658,963