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ACQUISITION - Narrative (Details) - MIRROR - USD ($)
$ in Millions
6 Months Ended
Jul. 07, 2020
Aug. 02, 2020
Business Acquisition [Line Items]    
Acquired debt settled on acquisition $ 30.1  
Debt to external parties, acquired 15.1  
Related party debt, counted for as settled 15.0  
Total deferred consideration $ 57.1  
Award vesting period 3 years  
Stock Options    
Business Acquisition [Line Items]    
Cost recognized for partial acceleration of vesting   $ 2.9
Recognized deferred compensation   $ 2.1