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Long-Term Debt, Exclusive of Current Installments (Parenthetical) (Detail) - USD ($) $ in Thousands | 9 Months Ended |  |
--- | --- | --- | ---
Oct. 29, 2016 | Jan. 30, 2016 | Oct. 31, 2015
6.95% Ten-Year Notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, interest rate | 6.95% |  |
Debt redeemed date | Oct. 12, 2016 |  |
Unamortized debt discount |  | $ 223 | $ 240
Effective interest rate | 6.98% |  |
2.50% Ten-Year Notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, interest rate | 2.50% |  |
Maturity date | May 15, 2023 |  |
Unamortized debt discount | $ 289 | 323 | 335
Effective interest rate | 2.51% |  |
2.75% Seven-Year Notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, interest rate | 2.75% |  |
Maturity date | Jun. 15, 2021 |  |
Unamortized debt discount | $ 344 | $ 400 | $ 418
Effective interest rate | 2.76% |  |
2.25% Ten-Year Notes |  |  |
Debt Instrument [Line Items] |  |  |
Debt instrument, interest rate | 2.25% |  |
Maturity date | Sep. 15, 2026 |  |
Unamortized debt discount | $ 7,336 |  |
Effective interest rate | 2.32% |  |

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- Definition Date when the debt instrument is scheduled to be fully repaid, 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 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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