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Convertible Senior Notes - Bond Hedge and Warrant Terminations and Notes Repurchases (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 30, 2022	Apr. 30, 2022	Jul. 30, 2022	Jul. 29, 2023	Jan. 28, 2023
Debt Instrument
Estimated settlement cost			$ 405,577
Loss on extinguishment of debt	$ 23,462		169,578
Outstanding Amount				$ 2,461,250	$ 2,474,910
Convertible note bond hedges
Debt Instrument
Aggregate amount received (paid) in cash to terminate warrants or bond hedges		$ 232,000
2023 and 2024 Notes \| Convertible note bond hedges
Debt Instrument
Trading days used to determine the conversion value		3 days
2023 and 2024 Notes \| Convertible note bond hedges \| Other expense-net
Debt Instrument
Loss on extinguishment of debt		$ 4,300
2023 Notes \| Convertible note bond hedges
Debt Instrument
Aggregate closing price received		56,000
2024 Notes \| Convertible note bond hedges
Debt Instrument
Aggregate closing price received		$ 180,000
Private Offering
Debt Instrument
Outstanding Amount				41,904	43,600
Private Offering \| 2023 Notes
Debt Instrument
Outstanding Amount					1,696
Private Offering \| 2024 Notes
Debt Instrument
Outstanding Amount				$ 41,904	$ 41,904
Private Offering \| Notes Repurchase
Debt Instrument
Trading days used to determine the conversion value	1 day	5 days
Aggregate notes repurchased and derecognized	$ 57,000	$ 180,000	57,000
Financing liability, fair value	55,000	278,000	55,000
Loss on extinguishment of debt	23,000	146,000
Outstanding Amount	25,000	47,000	25,000
Amortization of debt issuance costs	300	1,000
Cash paid to holders	82,000	314,000
Fair value of the bifurcated embedded equity derivative	57,000	267,000
Private Offering \| Notes Repurchase \| Other expense-net
Debt Instrument
Gain on the fair value adjustment of the bifurcated embedded equity derivative	1,500	11,000
Private Offering \| 2023 Notes \| Notes Repurchase
Debt Instrument
Aggregate notes repurchased and derecognized	18,000	45,000	18,000
Private Offering \| 2024 Notes \| Notes Repurchase
Debt Instrument
Aggregate notes repurchased and derecognized	39,000	135,000	$ 39,000
Private Offering \| Financing liability \| Notes Repurchase
Debt Instrument
Estimated settlement cost	$ 80,000	325,000
Warrants
Debt Instrument
Aggregate amount received (paid) in cash to terminate warrants or bond hedges		391,000
Warrants \| 2023 and 2024 Notes \| Other expense-net
Debt Instrument
Net loss on the fair value adjustment of the warrants		4,200
Warrants \| 2023 Notes
Debt Instrument
Aggregate purchase price		184,000
Warrants \| 2024 Notes
Debt Instrument
Aggregate purchase price		$ 203,000
Warrants \| Common Stock \| Maximum
Debt Instrument
Trading days used to determine the conversion value		3 days
Warrants \| Common Stock \| Minimum
Debt Instrument
Trading days used to determine the conversion value		2 days