Financial Instruments - Gross Unrealized Losses and Fair Values (Details) - USD ($) $ in Thousands	May 08, 2022	Feb. 06, 2022
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	$ 687,165	$ 637,548
Unrealized Loss, Less than 12 Months	(16,593)	(7,625)
Fair Value, Greater than 12 months	16,856	1,182
Unrealized Loss, Greater than 12 months	(574)	(23)
Fair Value, Total	704,021	638,730
Unrealized Loss, Total	(17,167)	(7,648)
U.S. government treasury notes
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	190,579	193,359
Unrealized Loss, Less than 12 Months	(4,381)	(2,176)
Fair Value, Greater than 12 months	3,488	0
Unrealized Loss, Greater than 12 months	(110)	0
Fair Value, Total	194,067	193,359
Unrealized Loss, Total	(4,491)	(2,176)
U.S. government agencies
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	29,394	24,388
Unrealized Loss, Less than 12 Months	(389)	(193)
Fair Value, Greater than 12 months	0	0
Unrealized Loss, Greater than 12 months	0	0
Fair Value, Total	29,394	24,388
Unrealized Loss, Total	(389)	(193)
Corporate debt securities
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	424,652	374,223
Unrealized Loss, Less than 12 Months	(10,555)	(4,708)
Fair Value, Greater than 12 months	13,368	1,182
Unrealized Loss, Greater than 12 months	(464)	(23)
Fair Value, Total	438,020	375,405
Unrealized Loss, Total	(11,019)	(4,731)
Foreign government bonds
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	3,743	4,098
Unrealized Loss, Less than 12 Months	(51)	(17)
Fair Value, Greater than 12 months	0	0
Unrealized Loss, Greater than 12 months	0	0
Fair Value, Total	3,743	4,098
Unrealized Loss, Total	(51)	(17)
Asset-backed securities
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	35,011	37,608
Unrealized Loss, Less than 12 Months	(1,053)	(453)
Fair Value, Greater than 12 months	0	0
Unrealized Loss, Greater than 12 months	0	0
Fair Value, Total	35,011	37,608
Unrealized Loss, Total	(1,053)	(453)
Municipal bonds
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	3,786	3,872
Unrealized Loss, Less than 12 Months	(164)	(78)
Fair Value, Greater than 12 months	0	0
Unrealized Loss, Greater than 12 months	0	0
Fair Value, Total	3,786	3,872
Unrealized Loss, Total	$ (164)	$ (78)