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Fair Value Measurements (Details 1) - USD ($)
$ in Millions
Jul. 01, 2017
Apr. 01, 2017
2.125% Senior Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Senior Notes, Carrying Value $ 298.4 $ 298.1
2.625% Senior Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Senior Notes, Carrying Value 292.0 290.1
Fair Value, Inputs, Level 2 [Member] | 2.125% Senior Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Senior Notes, Fair Value 302.0 302.2
Fair Value, Inputs, Level 2 [Member] | 2.625% Senior Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Senior Notes, Fair Value $ 305.0 $ 302.8