Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
External customer sales	$ 652,870	$ 933,826	$ 1,625,367	$ 2,663,067
Operating expenses	(196,067)	(215,038)	(551,712)	(654,988)
Income from equity investment	1,902	2,662	6,325	7,354
Impairment charges	(30,081)	(4,824)	(149,363)	(4,824)
Operating profit (loss)	(58,590)	56,108	(518,512)	141,356
Interest expense, net	(9,009)	(2,174)	(14,955)	(5,947)
Non-operating income (expenses), net	24	15	680	(128)
Income (loss) before income taxes	(67,575)	53,949	(532,787)	135,281
Income tax benefit (provision)	26,932	(10,489)	178,072	(33,220)
Net income (loss)	$ (40,643)	$ 43,460	$ (354,715)	$ 102,061
Basic and diluted earnings (loss) per share:
Basic earnings per share (USD per share)	$ (0.56)	$ 0.60	$ (4.92)	$ 1.38
Diluted earnings per share (USD per share)	$ (0.56)	$ 0.60	$ (4.92)	$ 1.36
Weighted average shares used in per share calculations:
Basic shares (in shares)	72,344	72,123	72,134	74,219
Diluted shares (in shares)	72,344	72,947	72,134	75,149
Product
External customer sales	$ 652,870	$ 933,826	$ 1,625,367	$ 2,663,067
Cost of sales	$ (487,214)	$ (660,518)	$ (1,449,129)	$ (1,869,253)