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Borrowing Arrangements - Additional Information (Detail) - USD ($) |  | 12 Months Ended
--- | --- | ---
Jan. 08, 2018 | Jan. 28, 2018 | Jan. 29, 2017
Debt Instrument [Line Items] |  |  |
Amount of borrowings under revolving line during period |  | $ 170,000,000 | $ 125,000,000
Amount outstanding under revolving line |  | $ 0 | $ 0
Interest rate description |  | Interest on unreimbursed amounts under the letter of credit facilities accrues at a base rate as defined in the credit facility, plus a margin based on our leverage ratio. |
Maximum borrowing capacity under letter of credit facilities including additional borrowing capacity |  | $ 70,000,000 |
Letter of credit facilities, maturity date |  | Aug. 25, 2018 |
Outstanding letter of credit facilities |  | $ 6,721,000 |
Latest expiration date possible for future letters of credit |  | Jan. 22, 2019 |
Standby Letters of Credit |  |  |
Debt Instrument [Line Items] |  |  |
Amount issued but undrawn under credit facility |  | $ 12,780,000 |
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 |  |
Revolving line, maturity date | Jan. 08, 2023 |  |
Weighted average interest rate |  | 2.21% | 1.54%
Interest rate description |  | The interest rate under the credit facility is variable, and may be elected by us as (i) the London Interbank Offer Rate ("LIBOR") plus an applicable margin based on our leverage ratio ranging from 0.91% to 1.775% for a revolver borrowing, and 1.0% to 2.0% for the term loan; or (ii) a base rate as defined in the credit facility, plus an applicable margin ranging from 0% to 0.775% for a revolver borrowing, and 0% to 1% for the term loan. |
Unsecured Revolving Line Of Credit | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Additional borrowing capacity | $ 250,000,000 |  |
Unsecured Revolving Line Of Credit | Margin Based On Leverage Ratio | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Leverage ratio |  | 1.775% |
Unsecured Revolving Line Of Credit | Margin Based On Leverage Ratio | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Leverage ratio |  | 0.91% |
Unsecured Revolving Line Of Credit | Base Rate | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Leverage ratio |  | 0.775% |
Unsecured Revolving Line Of Credit | Base Rate | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Leverage ratio |  | 0.00% |
Unsecured Term Loan Facility |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument face amount | $ 300,000,000 |  |
Long term debt |  | $ 300,000,000 |
Debt instrument, maturity date |  | Jan. 08, 2021 |
Weighted average interest rate |  | 2.68% |
Unsecured Term Loan Facility | Margin Based On Leverage Ratio | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Leverage ratio |  | 2.00% |
Unsecured Term Loan Facility | Margin Based On Leverage Ratio | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Leverage ratio |  | 1.00% |
Unsecured Term Loan Facility | Base Rate | Maximum |  |  |
Debt Instrument [Line Items] |  |  |
Leverage ratio |  | 1.00% |
Unsecured Term Loan Facility | Base Rate | Minimum |  |  |
Debt Instrument [Line Items] |  |  |
Leverage ratio |  | 0.00% |

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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 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://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 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 + 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 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 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. + References Reference 1: 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(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: 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 3: 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(22)) -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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