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Financial Instruments (Details 3) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments $ 2.6 $ (0.5) $ 5.7 $ 2.1
Foreign Exchange Forward [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments $ 2.6 $ (0.5) $ 5.7 $ 2.1