Derivative Financial Instruments - Outstanding Notional Amounts (Details) - Foreign Exchange Forward - USD ($) $ in Thousands	Jan. 28, 2018	Jan. 29, 2017
Designated as Hedging Instrument
Derivative [Line Items]
Notional amounts	$ 262,000	$ 0
Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amounts	$ 240,000	$ 0

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant