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Borrowing Arrangements - Additional Information (Detail) - USD ($) | 12 Months Ended
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Jan. 31, 2016 | Feb. 01, 2015
Debt Instrument [Line Items] |  |
Additional percentage over reference rate | 2.00% |
Interest rate description | Interest on unreimbursed amounts under the letter of credit facilities accrues at the lender's prime rate (or, if greater, the average rate on overnight federal funds plus one-half of one percent) plus 2.0%. |
Amount outstanding under credit facility | $ 0 | $ 0
Amount of borrowings under credit facility during period | 200,000,000 | $ 90,000,000
Maximum borrowing capacity under letter of credit facilities including additional borrowing capacity | $ 70,000,000 |
Letter of credit facilities, maturity date | Aug. 27, 2016 |
Outstanding letter of credit facilities | $ 6,088,000 |
Latest expiration date possible for future letters of credit | Jan. 24, 2017 |
Standby Letters of Credit |  |
Debt Instrument [Line Items] |  |
Amount issued but undrawn under credit facility | $ 13,367,000 |
Federal Funds |  |
Debt Instrument [Line Items] |  |
Additional percentage over reference rate | 0.50% |
Unsecured Revolving Line Of Credit |  |
Debt Instrument [Line Items] |  |
Current borrowing capacity | $ 500,000,000 |
Maximum borrowing capacity including additional borrowing capacity | $ 750,000,000 |
Credit facility, maturity date | Nov. 19, 2019 |
Interest rate description | We may elect interest rates calculated at (i) Bank of America's prime rate (or, if greater, the average rate on overnight federal funds plus one-half of one percent, or a rate based on LIBOR plus one percent) plus a margin based on our leverage ratio or (ii) LIBOR plus a margin based on our leverage ratio. |
Weighted average interest rate | 1.11% | 1.05%
Unsecured Revolving Line Of Credit | Maximum |  |
Debt Instrument [Line Items] |  |
Additional borrowing capacity | $ 250,000,000 |
Unsecured Revolving Line Of Credit | Federal Funds |  |
Debt Instrument [Line Items] |  |
Additional percentage over reference rate | 0.50% |
Unsecured Revolving Line Of Credit | Libor |  |
Debt Instrument [Line Items] |  |
Additional percentage over reference rate | 1.00% |

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + 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://www.xbrl.org/2003/role/presentationRef -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 2: http://www.xbrl.org/2003/role/presentationRef -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=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum amount borrowed under the credit facility at any time during the period. + References No definition available. + Details
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- Definition Weighted average interest rate of short-term debt outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Reflects when the letter of credit facilities terminates, which may be presented in a variety of ways (year, month and year, day, month and year, quarter). + References No definition available. + Details
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- Definition Maximum borrowing capacity under the letter of credit facilities without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facilities. + References No definition available. + Details
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- Definition Expiration date for future letters of credit issued under the letter of credit facilities. + References No definition available. + Details
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- Definition Additional borrowing capacity that may be requested upon notice to the lenders. + References No definition available. + Details
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- Definition Amount available to be drawn upon by standby letter of credit beneficiaries under the credit facility as of the balance sheet date. + References No definition available. + Details
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