Stockholder's Equity - Preferred Stock (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Jan. 03, 2021 USD ($) $ / shares shares	Dec. 29, 2019 USD ($) $ / shares shares	Dec. 29, 2013	Sep. 27, 2020 shares	Aug. 02, 2019 shares
Class of Stock [Line Items]
Preferred Stock, Shares Issued	100	100
Board of directors, number of members	2
Minimum [Member]
Class of Stock [Line Items]
Board of directors, number of members	1
Maximum [Member]
Class of Stock [Line Items]
Board of directors, number of members	2
Repurchase Program [Member]
Class of Stock [Line Items]
Stock Repurchased During Period, Shares	1,534,304	553,112
Treasury Stock Acquired, Average Cost Per Share | $ / shares	$ 6.52	$ 7.26
Stock Repurchased During Period, Value | $	$ 10.0	$ 4.0
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $	$ 11.0
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Outstanding Shares			7.50%
Preferred Stock, Shares Issued	100
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Units, Issued				10,000
Common Stock [Member] | Repurchase Program [Member]
Class of Stock [Line Items]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased					25,000,000.0
BKC [Member] | Series B Preferred Stock [Member]
Class of Stock [Line Items]
Outstanding Shares			11.50%
Cambridge Holdings, LLC [Member]
Class of Stock [Line Items]
Convertible Preferred Stock, Shares Issued upon Conversion				7,500,000
Noncontrolling Interest, Ownership Percentage by Parent	23.90%
2016 Stock Incentive Plan [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	887,171