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Borrowings and Credit Arrangements - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Dec. 19, 2016
Jul. 01, 2017
Dec. 31, 2016
Jun. 25, 2016
Mar. 26, 2016
Jul. 01, 2017
Jun. 25, 2016
Apr. 25, 2017
Apr. 21, 2017
Debt Instrument [Line Items]                  
Non-cash interest expense amortization of debt discount and deferred financing costs           $ 38.9 $ 38.8    
Cash paid for conversion of debt   $ 269.1 $ 12.3     290.1 $ 311.5    
Conversion premium           8.7      
Exceeds Percentage Of Conversion Price Of Common Stock   0.00%              
Convertible Debt, Current   $ 260.0       260.0      
Principle Value of Convertible Debt   263.4       $ 263.4      
Debt Instrument, Convertible, If-converted Value in Excess of Principal   $ 123.7              
Maximum borrowing under securitization program                 $ 200.0
Additional borrowing under securitization program               $ 36.0  
Credit Agreement                  
Debt Instrument [Line Items]                  
Weighted average interest rates   2.50%   2.19%   2.28% 2.11%    
Interest rate   2.72%              
Interest expense   $ 10.5   $ 10.5   $ 30.1 $ 31.2    
Non-cash interest expense amortization of debt discount and deferred financing costs   1.0   1.1   3.2      
2022 Notes [Member]                  
Debt Instrument [Line Items]                  
Interest expense   14.0       43.2      
Non-cash interest expense amortization of debt discount and deferred financing costs   $ 1.0       $ 2.9      
Senior note interest rate per year           5.25%      
Senior Notes                  
Debt Instrument [Line Items]                  
Interest expense       14.0   $ 41.9      
Non-cash interest expense amortization of debt discount and deferred financing costs       1.0   $ 2.9      
Accounts Receivable Securitization [Member]                  
Debt Instrument [Line Items]                  
Weighted average interest rates   1.22%       1.32%      
Interest rate   1.92%              
Interest expense   $ 0.9       $ 2.3 0.4    
2010 Notes [Member]                  
Debt Instrument [Line Items]                  
Cash paid for conversion of debt         $ 140.1        
Convertible Debt [Member] | 2010 Notes [Member]                  
Debt Instrument [Line Items]                  
Stated interest rate 2.00%                
Redemption price (as a percent) 100.00%                
Convertible Notes Payable [Member]                  
Debt Instrument [Line Items]                  
Interest expense   10.1   11.7   33.4 38.6    
Non-cash interest expense amortization of debt discount and deferred financing costs   $ 8.5   $ 9.6   $ 28.0 $ 30.6