Segment Information - Long-lived Assets by Region (Details) - USD ($) $ in Thousands	Jan. 28, 2018	Jan. 29, 2017
Geographic Information And Concentration Of Risk [Line Items]
Long-lived assets	$ 124,606	$ 108,910
United States
Geographic Information And Concentration Of Risk [Line Items]
Long-lived assets	48,289	50,747
Rest of North America [Member]
Geographic Information And Concentration Of Risk [Line Items]
Long-lived assets	34,941	30,435
Europe
Geographic Information And Concentration Of Risk [Line Items]
Long-lived assets	9,752	8,821
Asia and All Others
Geographic Information And Concentration Of Risk [Line Items]
Long-lived assets	$ 31,624	$ 18,907