Long-Term Debt, Net - Schedule of Interest Expense for Notes (Detail) - Convertible Senior Notes Due 2025 $ in Thousands	12 Months Ended
Jan. 30, 2021 USD ($)
Debt Instrument [Line Items]
Cash interest expense	$ 11,857
Amortization of discount	12,517
Total interest expense	$ 24,374

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.

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