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v3.20.1

Long-Term Debt, Net - Additional Information (Detail) - USD ($) | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Apr. 30, 2020 | Jan. 31, 2019 | May 04, 2019 | May 02, 2020
Line Of Credit Facility [Line Items] |  |  |  |
Weighted average interest rate |  |  | 2.50% |
Total interest expense for period |  |  | $ 1,100,000 |
Credit Agreement | Credit Facilities |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Line of credit facility, expiration period |  | 5 years |  |
Loans and letters of credit maximum borrowing capacity |  | $ 400,000,000 |  |
Line of credit facility, expiration date |  | Jan. 30, 2024 |  |
Credit Agreement | Credit Agreement Loans |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Revolving credit facility borrowings |  |  |  | $ 330,000,000.0
Credit Agreement | Stand-by Letters of Credit |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Letters of credit outstanding amount |  |  |  | $ 7,900,000
Convertible Senior Notes Due 2025 |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Aggregate principal amount of debt issued | $ 415,000,000 |  |  |
Debt instrument, stated interest rate | 3.75% |  |  |
Debt instrument, maturity year | 2025 |  |  |
Debt instrument, interest terms | The notes have a stated interest rate of 3.75%, payable semi-annually. |  |  |
Debt instrument, frequency of periodic payment of interest | payable semi-annually |  |  |
Debt instrument, redemption period beginning month and year | 2023-04 |  |  |
Debt instrument, conversion period beginning month and year | 2025-01 |  |  |
Debt conversion, original debt, principal amount converted | $ 1,000 |  |  |
Debt instrument, effective interest rate | 10.00% |  |  |
Debt instrument, remaining amortization period of discount | 5 years |  |  |
Convertible Senior Notes Due 2025 | Common Stock |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Debt conversion, converted instruments, shares issued | 114.3 |  |  |

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- Definition Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031898-161870 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
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- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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