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PENSION AND OTHER RETIREMENT PLANS Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 5 Months Ended 12 Months Ended
Dec. 29, 2013
Sep. 26, 2013
Jan. 01, 2017
Jan. 03, 2016
Dec. 28, 2014
Apr. 28, 2013
Defined Benefit Plan Disclosure [Line Items]            
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year     $ (11.4)      
Defined Benefit Plan, Accumulated Benefit Obligation       $ 1,700.0 $ 1,700.0  
Successor            
Defined Benefit Plan Disclosure [Line Items]            
Defined Benefit Plan, Average Rate of Return on Plan Assets Over Five Year Period       6.75%    
Defined Contribution Plan, Cost Recognized $ 4.1     $ 21.6 $ 18.2  
Predecessor            
Defined Benefit Plan Disclosure [Line Items]            
Defined Benefit Plan, Average Rate of Return on Plan Assets Over Five Year Period         9.81%  
Defined Contribution Plan, Cost Recognized   $ 8.0       $ 15.0