Risk Management and Derivatives (Schedule of Contract Notional Amount of All Purchase and Sale Contracts of a Foreign Currency) (Details) - Forward Contracts [Member] - USD ($) $ in Thousands |
Apr. 29, 2017 |
Jan. 28, 2017 |
Apr. 30, 2016 |
|---|---|---|---|
| Derivative [Line Items] | |||
| Derivative, Notional Amount | $ 43,290 | $ 42,088 | $ 47,751 |
| U.S. dollars (purchased by the Company's Canadian division with Canadian dollars) [Member] | |||
| Derivative [Line Items] | |||
| Derivative, Notional Amount | 20,813 | 18,826 | 15,767 |
| Euro | |||
| Derivative [Line Items] | |||
| Derivative, Notional Amount | 16,446 | 13,297 | 15,182 |
| Chinese yuan | |||
| Derivative [Line Items] | |||
| Derivative, Notional Amount | 4,476 | 7,723 | 14,066 |
| Japanese yen | |||
| Derivative [Line Items] | |||
| Derivative, Notional Amount | 416 | 769 | 1,152 |
| United Arab Emirates dirham | |||
| Derivative [Line Items] | |||
| Derivative, Notional Amount | 528 | 823 | 900 |
| New Taiwanese dollars | |||
| Derivative [Line Items] | |||
| Derivative, Notional Amount | 545 | 526 | 514 |
| Other currencies | |||
| Derivative [Line Items] | |||
| Derivative, Notional Amount | $ 66 | $ 124 | $ 170 |