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Derivatives and Hedging Activities - Summary of Open Foreign Currency Contracts (Details) £ in Thousands, CAD in Thousands, $ in Thousands | Oct. 29, 2017 USD ($) | Oct. 29, 2017 GBP (£) | Oct. 29, 2017 CAD
--- | --- | --- | ---
Derivative [Line Items] |  |  |
Number of Instruments | 6 | 6 | 6
Sell USD/Buy CAD Forward Contract [Member] |  |  |
Derivative [Line Items] |  |  |
Number of Instruments | 3 | 3 | 3
Sell USD/Buy GBP Forward Contract [Member] |  |  |
Derivative [Line Items] |  |  |
Number of Instruments | 3 | 3 | 3
Short [Member] | Sell USD/Buy CAD Forward Contract [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Value | $ 4,976 |  |
Short [Member] | Sell USD/Buy GBP Forward Contract [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Value | $ 2,762 |  |
Long [Member] | Sell USD/Buy CAD Forward Contract [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Value | CAD |  |  | CAD 6,750
Long [Member] | Sell USD/Buy GBP Forward Contract [Member] |  |  |
Derivative [Line Items] |  |  |
Notional Value | £ |  | £ 2,250 |

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