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Debt (GE Term Loan) - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Debt Instrument [Line Items]      
Senior notes $ 1,246.1 $ 2,057.5  
Aggregate principal amount of redemption 264.5 101.5 $ 0.5
Write off of Deferred Debt Issuance Cost 4.3    
Other costs 12.5 $ 7.7 $ 0.0
Outstanding borrowings $ 81.1