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Derivative Financial Instruments - Additional Information (Detail)
€ in Millions, $ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Apr. 30, 2015
EUR (€)
Mar. 30, 2018
USD ($)
Mar. 31, 2017
USD ($)
Mar. 30, 2018
USD ($)
Mar. 31, 2017
USD ($)
Sep. 29, 2017
USD ($)
Derivative [Line Items]            
Gains (Losses) on foreign currency forward exchange contracts not designated as an accounting hedge   $ 2.3 $ 1.1 $ 2.4 $ 0.2  
Net Gain (Loss) expected to be reclassified into earnings over next 12 months   $ 7.0   $ 7.0    
Maturities of forecasted transactions using forward exchange contracts       24 months    
3.625% Senior Notes, Due April 2023            
Derivative [Line Items]            
Debt instrument, interest rate 3.625% 3.625%   3.625%   3.625%
Debt instruments maturity date Apr. 30, 2023          
Net Investment Hedges | 3.625% Senior Notes, Due April 2023            
Derivative [Line Items]            
Derivative notional amount | € € 330.0          
Foreign Exchange Forward            
Derivative [Line Items]            
Derivative notional amount   $ 476.8   $ 476.8   $ 406.9
Foreign Exchange Forward Contracts Related to Net Monetary Assets | Cash Flow Hedging            
Derivative [Line Items]            
Derivative notional amount   $ 100.0   $ 100.0