Fair Value Hierarchy for Financial Assets (Cash Equivalents and Investments) Measured at Fair Value on Recurring Basis (Detail) - USD ($)
$ in Thousands |
12 Months Ended |
Jan. 28, 2017 |
Jan. 30, 2016 |
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
$ 378,613
|
$ 260,067
|
| Cash |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
265,332
|
205,359
|
| Interest Bearing Deposits |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
83,281
|
54,708
|
| Commercial Paper |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
30,000
|
|
| Fair Value, Measurements, Recurring | Carrying Amount |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
$ 378,613
|
$ 260,067
|
| Carrying Amount, Percent to total |
100.00%
|
100.00%
|
| Fair Value, Measurements, Recurring | Carrying Amount | Cash |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
$ 265,332
|
$ 205,359
|
| Fair Value, Measurements, Recurring | Carrying Amount | Interest Bearing Deposits |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
83,281
|
54,708
|
| Fair Value, Measurements, Recurring | Carrying Amount | Commercial Paper |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
30,000
|
|
| Fair Value, Measurements, Recurring | Fair Value | Quoted Market Prices in Active Markets for Identical Assets (Level 1) |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
$ 378,613
|
$ 260,067
|
| Fair Value, Percent to total |
100.00%
|
100.00%
|
| Fair Value, Measurements, Recurring | Fair Value | Cash | Quoted Market Prices in Active Markets for Identical Assets (Level 1) |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
$ 265,332
|
$ 205,359
|
| Fair Value, Measurements, Recurring | Fair Value | Interest Bearing Deposits | Quoted Market Prices in Active Markets for Identical Assets (Level 1) |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
83,281
|
$ 54,708
|
| Fair Value, Measurements, Recurring | Fair Value | Commercial Paper | Quoted Market Prices in Active Markets for Identical Assets (Level 1) |
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
| Cash and cash equivalents |
$ 30,000
|
|