Legal Proceedings Legal Proceedings (Details) $ in Thousands		3 Months Ended
	Apr. 13, 2017 plaintiffs	Jul. 29, 2017 USD ($)	Jan. 28, 2017 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Loss contingency accrual			$ 1,475
Loss Contingencies [Line Items]
Loss contingency, number of plaintiffs | plaintiffs	3
Scenario, Forecast
Loss Contingencies [Line Items]
Litigation settlement fund contribution		$ 1,475