Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands					12 Months Ended
	Jan. 06, 2021	Jul. 31, 2018	May 24, 2018	Feb. 08, 2017	Dec. 29, 2020	Dec. 31, 2019	Jan. 01, 2019
Class of Stock [Line Items]
Shares of stock authorized					181,000,000
Common stock authorized (in shares)					180,000,000	180,000,000
Common stock, par value					$ 0.01	$ 0.01
Preferred stock authorized (in shares)					1,000,000	1,000,000
Preferred stock, par value					$ 0.01	$ 0.01
Proceeds from issuance of common stock, net of transaction expenses					$ 0	$ 0	$ 22,992
Common stock outstanding (in shares)					44,383,716	44,134,063
L Catterton agreement warrants
Class of Stock [Line Items]
Warrants term				5 years
Number of shares called by warrants				1,913,793
Warrant exercise price (USD per share)				$ 4.35
Securities Purchase Agreement - L Catterton
Class of Stock [Line Items]
Proceeds from securities purchase agreement				$ 18,500
Class A common stock
Class of Stock [Line Items]
Common stock authorized (in shares)					150,000,000
Common stock, par value					$ 0.01
Number of shares sold		2,500,000
Price per share (USD per share)		$ 10.00
Proceeds from issuance of common stock, net of transaction expenses		$ 23,000
Class A common stock | Subsequent event
Class of Stock [Line Items]
Common shares issued upon exercise of warrants	837,948
Class A common stock | Securities Purchase Agreement - L Catterton
Class of Stock [Line Items]
Common stock, par value				$ 0.01
Common shares into which preferred stock can be converted (shares)				4,252,873
Class B common stock
Class of Stock [Line Items]
Common stock authorized (in shares)					30,000,000
Common stock, par value			$ 0.01		$ 0.01
Shares converted (in shares)			1,522,098
Common stock outstanding (in shares)					0
Preferred stock
Class of Stock [Line Items]
Preferred stock authorized (in shares)					1,000,000
Preferred stock, par value					$ 0.01
Preferred stock | Securities Purchase Agreement - L Catterton
Class of Stock [Line Items]
Number of shares sold				18,500
Price per share (USD per share)				$ 1,000
Minimum | Equity Sponsors
Class of Stock [Line Items]
Registration rights, percentage of common stock shares					10.00%