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NEW ACCOUNTING PRONOUNCEMENTS (Details) - USD ($)
$ in Millions
Oct. 02, 2021
Jul. 03, 2021
Dec. 31, 2020
Sep. 26, 2020
Jun. 27, 2020
Jan. 01, 2020
Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Stockholders' equity $ 1,060.3 $ 728.2 $ 629.2 $ 583.1 $ 552.1   $ 502.4
Retained Deficit              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Stockholders' equity $ (68.7) $ (399.8) $ (488.1) $ (512.7) $ (535.5)   $ (584.8)
Cumulative Effect, Period of Adoption, Adjustment | Retained Deficit              
New Accounting Pronouncements or Change in Accounting Principle [Line Items]              
Stockholders' equity           $ (0.5)