Long-Term Debt, Net - Components of Long-Term Debt (Detail) - USD ($)	May 01, 2021	Jan. 30, 2021	May 02, 2020
Debt Instrument [Line Items]
Total long-term debt, net	$ 329,718,000	$ 325,290,000	$ 642,972,000
Convertible Notes- Equity portion, net of tax	68,330,000	68,330,000	68,330,000
Convertible Senior Notes Due 2025
Debt Instrument [Line Items]
Convertible notes principal	415,025,000	415,025,000	415,025,000
Less: unamortized discount	85,307,000	89,735,000	102,053,000
Convertible notes, net	329,718,000	$ 325,290,000	312,972,000
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving credit facility borrowings	$ 0		$ 330,000,000

Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt discount.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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