Description of the Business and Basis of Presentation - Initial Public Offering (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Apr. 27, 2016	Feb. 03, 2017	Jan. 29, 2016	Jan. 30, 2015
Class of Stock [Line Items]
Proceeds from initial public offering		$ 99,604	$ 0	$ 0
Underwriting discounts and commissions and unpaid offering expenses	$ 12,400
Common Class A
Class of Stock [Line Items]
Shares issued (in shares)	8,000,000
Price per share (usd per share)	$ 14.00
Proceeds from initial public offering	$ 99,600
Common Class A | Common Stock
Class of Stock [Line Items]
Shares issued (in shares)		8,000,000
Conversion of convertible notes to common stock in connection with initial public offering (in shares)	2,008,924	2,009,000