Information about Gains (Losses) Associated with Derivative Financial Instruments (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jul. 30, 2016 |
Aug. 01, 2015 |
Jul. 30, 2016 |
Aug. 01, 2015 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Amount of Gains (Losses) in Statement of Operations | $ 302 | $ 453 | $ 514 | $ (629) |
| Cash flow hedges | Foreign currency forward contracts | Research and development | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Amount of Gains (Losses) in Statement of Operations | 265 | 415 | 451 | (576) |
| Cash flow hedges | Foreign currency forward contracts | Selling and marketing | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Amount of Gains (Losses) in Statement of Operations | 6 | 6 | 10 | (71) |
| Cash flow hedges | Foreign currency forward contracts | General and administrative | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Amount of Gains (Losses) in Statement of Operations | $ 31 | $ 32 | $ 53 | $ 18 |