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Stock-Based Compensation - Schedule of stock-based compensation (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 02, 2021
Dec. 28, 2019
Dec. 29, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Stock-based compensation expense $ 12,216 $ 7,485 $ 7,939
Selling, general and administrative expenses [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Stock-based compensation expense 12,570 10,471 6,773
Other income [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Stock-based compensation expense (894) (4,131) 0
Earnings from discontinued operations [Member]      
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]      
Stock-based compensation expense $ 540 $ 1,145 $ 1,166