Financial Instruments - Gross Unrealized Losses and Fair Values (Details) - USD ($) $ in Thousands	Nov. 05, 2023	Feb. 05, 2023
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	$ 450,522	$ 360,946
Unrealized Loss, Less than 12 months	(3,054)	(495)
Fair Value, Greater than 12 months	226,639	450,559
Unrealized Loss, Greater than 12 months	(5,504)	(14,551)
Fair Value, Total	677,161	811,505
Unrealized Loss, Total	(8,558)	(15,046)
U.S. government treasury notes
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	216,545	250,046
Unrealized Loss, Less than 12 months	(1,743)	(130)
Fair Value, Greater than 12 months	72,662	127,976
Unrealized Loss, Greater than 12 months	(1,401)	(4,099)
Fair Value, Total	289,207	378,022
Unrealized Loss, Total	(3,144)	(4,229)
U.S. government agencies
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	4,389	5,194
Unrealized Loss, Less than 12 months	(6)	(5)
Fair Value, Greater than 12 months	0	18,312
Unrealized Loss, Greater than 12 months	0	(284)
Fair Value, Total	4,389	23,506
Unrealized Loss, Total	(6)	(289)
Corporate debt securities
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	192,151	99,446
Unrealized Loss, Less than 12 months	(1,055)	(330)
Fair Value, Greater than 12 months	135,200	277,717
Unrealized Loss, Greater than 12 months	(3,520)	(8,970)
Fair Value, Total	327,351	377,163
Unrealized Loss, Total	(4,575)	(9,300)
Foreign government bonds
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	699	3,200
Unrealized Loss, Less than 12 months	0	(5)
Fair Value, Greater than 12 months	566	551
Unrealized Loss, Greater than 12 months	(25)	(39)
Fair Value, Total	1,265	3,751
Unrealized Loss, Total	(25)	(44)
Asset-backed securities
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	36,738	3,060
Unrealized Loss, Less than 12 months	(250)	(25)
Fair Value, Greater than 12 months	15,263	22,221
Unrealized Loss, Greater than 12 months	(496)	(991)
Fair Value, Total	52,001	25,281
Unrealized Loss, Total	(746)	(1,016)
Municipal bonds
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Fair Value, Less than 12 months	0	0
Unrealized Loss, Less than 12 months	0	0
Fair Value, Greater than 12 months	2,948	3,782
Unrealized Loss, Greater than 12 months	(62)	(168)
Fair Value, Total	2,948	3,782
Unrealized Loss, Total	$ (62)	$ (168)