Derivatives and Hedging Activities - Summary of Open Foreign Currency Contracts (Details) £ in Thousands, SFr in Thousands, CAD in Thousands, $ in Thousands	May. 01, 2016 USD ($)	May. 01, 2016 GBP (£)	May. 01, 2016 CAD	May. 01, 2016 CHF (SFr)
Derivative [Line Items]
Number of Instruments	27	27	27	27
Sell CHF/Buy USD Forward Contract [Member]
Derivative [Line Items]
Number of Instruments	9	9	9	9
Sell CAD/Buy USD Forward Contract [Member]
Derivative [Line Items]
Number of Instruments	9	9	9	9
Sell GBP/Buy USD Forward Contract [Member]
Derivative [Line Items]
Number of Instruments	9	9	9	9
Short [Member] | Sell CHF/Buy USD Forward Contract [Member]
Derivative [Line Items]
Notional Value | SFr				SFr 8,016
Short [Member] | Sell CAD/Buy USD Forward Contract [Member]
Derivative [Line Items]
Notional Value | CAD			CAD 19,991
Short [Member] | Sell GBP/Buy USD Forward Contract [Member]
Derivative [Line Items]
Notional Value | £		£ 5,302
Long [Member] | Sell CHF/Buy USD Forward Contract [Member]
Derivative [Line Items]
Notional Value	$ 8,156
Long [Member] | Sell CAD/Buy USD Forward Contract [Member]
Derivative [Line Items]
Notional Value	14,289
Long [Member] | Sell GBP/Buy USD Forward Contract [Member]
Derivative [Line Items]
Notional Value	$ 7,750