Segment Information - Long-lived Assets by Region (Details) - USD ($) $ in Thousands	Jan. 29, 2017	Jan. 31, 2016
Geographic Information And Concentration Of Risk [Line Items]
Long-lived assets	$ 108,910	$ 101,006
United States
Geographic Information And Concentration Of Risk [Line Items]
Long-lived assets	50,747	56,213
Rest of North America [Member]
Geographic Information And Concentration Of Risk [Line Items]
Long-lived assets	30,435	21,618
Europe
Geographic Information And Concentration Of Risk [Line Items]
Long-lived assets	8,821	7,109
Asia and All Others
Geographic Information And Concentration Of Risk [Line Items]
Long-lived assets	$ 18,907	$ 16,066