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VARIABLE INTEREST ENTITIES - Summary Of Consolidated VIEs (Details) - Variable Interest Entity, Primary Beneficiary - Common Stock - USD ($)
$ / shares in Units, $ in Millions
Dec. 28, 2017
Aug. 03, 2016
Dec. 27, 2017
Variable Interest Entity [Line Items]      
Shares sold during the period (in shares)   2,500,000  
Price per share sold to trust (in usd per share)   $ 21.45  
Proceeds from sale of equity   $ 53.6  
Number of shares repurchased (in shares) 2,500,000    
Share price of share repurchased (in usd per share) $ 21.00    
Value of shares repurchased $ 52.5    
Proceeds used for funding benefit plan obligations $ 2.7    
Voting common stock allocated to funding benefit plan obligations (in shares) 126,517    
Portion of termination proceeds used to satisfy and terminate promissory note obligations $ 49.8    
Outstanding principal balance including accrued interest     $ 50.9