Investments - Schedule of Available-for-sale Marketable Debt Securities Recorded Within Short-term and Long-term Investments (Details) - USD ($) $ in Thousands	May 02, 2026	Jan. 31, 2026
Investments
Amortized Cost	$ 1,063,346	$ 915,970
Gross Unrealized Gains	720	2,356
Gross Unrealized Losses	(1,661)	(200)
Estimated Fair Value	1,062,405	918,126
Commercial paper
Investments
Amortized Cost	181,518	137,590
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1)	0
Estimated Fair Value	181,517	137,590
Corporate notes and bonds
Investments
Amortized Cost	564,732	486,144
Gross Unrealized Gains	557	1,849
Gross Unrealized Losses	(1,235)	(148)
Estimated Fair Value	564,054	487,845
U.S. government, agency securities, and municipal securities
Investments
Amortized Cost	317,096
Gross Unrealized Gains	163
Gross Unrealized Losses	(425)
Estimated Fair Value	$ 316,834
U.S. government and agency securities
Investments
Amortized Cost		292,236
Gross Unrealized Gains		507
Gross Unrealized Losses		(52)
Estimated Fair Value		$ 292,691

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

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- Definition

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

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Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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