Fair Value Measurements (Details)
|
3 Months Ended |
9 Months Ended |
|
|
Oct. 28, 2017
USD ($)
|
Apr. 29, 2017
USD ($)
|
Oct. 29, 2016
USD ($)
stores
|
Oct. 28, 2017
USD ($)
stores
|
Oct. 29, 2016
USD ($)
stores
|
Jan. 28, 2017
USD ($)
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
|
| Impairment charge |
$ 0
|
$ 5,500,000
|
$ 800,000
|
$ 5,479,000
|
$ 829,000
|
|
| Number of stores impaired during the period | stores |
|
|
2
|
17
|
2
|
|
| Recurring [Member] | Level 1 [Member] |
|
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
|
| Financial assets |
116,914,000
|
|
|
$ 116,914,000
|
|
|
| Recurring [Member] | Level 1 [Member] | Money market funds [Member] |
|
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
|
| Financial assets |
116,914,000
|
|
|
116,914,000
|
|
$ 177,551,000
|
| Recurring [Member] | Level 1 [Member] | Commercial paper [Member] |
|
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
|
| Financial assets |
0
|
|
|
0
|
|
|
| Recurring [Member] | Level 2 [Member] |
|
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
|
| Financial assets |
59,916,000
|
|
|
59,916,000
|
|
|
| Recurring [Member] | Level 2 [Member] | Money market funds [Member] |
|
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
|
| Financial assets |
0
|
|
|
0
|
|
0
|
| Recurring [Member] | Level 2 [Member] | Commercial paper [Member] |
|
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
|
| Financial assets |
59,916,000
|
|
|
59,916,000
|
|
|
| Recurring [Member] | Level 3 [Member] |
|
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
|
| Financial assets |
0
|
|
|
0
|
|
|
| Recurring [Member] | Level 3 [Member] | Money market funds [Member] |
|
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
|
| Financial assets |
0
|
|
|
0
|
|
$ 0
|
| Recurring [Member] | Level 3 [Member] | Commercial paper [Member] |
|
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
|
| Financial assets |
$ 0
|
|
|
$ 0
|
|
|