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DEBT - Long Term Debt Senior Notes due 2025 (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 03, 2020
Dec. 28, 2018
Dec. 29, 2017
Debt Instrument [Line Items]      
Payments of deferred financing cost $ 0.0 $ 2.9 $ 0.0
6.00% Senior notes due 2025 [Member]      
Debt Instrument [Line Items]      
Face amount of debt instrument $ 250.0    
Discount percentage of par value 98.75%    
Unamortized debt discount $ 3.1    
Payments of deferred financing cost $ 0.8    
Fixed interest rate percentage on long term debt 6.00%    
Maturity date of debt instrument Dec. 01, 2025    
Redemption Price Rate On Principal Amount 100.00%    
Redemption Price As Percentage Of Principal Amount In Case Of Change Of Control 101.00%