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Summary of Significant Accounting Policies - Fair value of financial instruments (Details) - USD ($) $ in Thousands	Aug. 02, 2025	Feb. 01, 2025	Aug. 03, 2024
Significant Accounting Policies [Line Items]
Amortized Cost			$ 118,680
Gross Unrealized Gains			0
Gross Unrealized Losses			52
Fair Market Value			118,628
Fair Value, Inputs, Level 1
Significant Accounting Policies [Line Items]
Cash equivalents	$ 528,700	$ 310,400	187,200
Short-term:
Significant Accounting Policies [Line Items]
Amortized Cost	107,418	197,073
Gross Unrealized Gains	0	0
Gross Unrealized Losses	58	115
Fair Market Value	107,360	196,958
Corporate bonds | Fair Value, Inputs, Level 2
Significant Accounting Policies [Line Items]
Amortized Cost	107,418	197,073	118,680
Gross Unrealized Gains	0	0	0
Gross Unrealized Losses	58	115	52
Fair Market Value	$ 107,360	$ 196,958	$ 118,628

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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