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Stock-Based Compensation Plans (Details Textual) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Apr. 01, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]          
Payments Related to Tax Withholding for Share-based Compensation     $ 42,053 $ 28,352  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense $ 6,300 $ 2,900 17,900 9,700  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value $ 465 $ 8,800 $ 3,200 $ 21,400  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 1.70% 0.80% 1.70% 0.80%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 2.20% 2.90% 2.20% 2.90%  
Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Weighted-Average Grant-Date Fair Value, Granted $ 59.99 $ 42.89 $ 59.89 $ 42.87 $ 44.38
Employee Stock Purchase Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock Issued During Period, Shares, Employee Stock Purchase Plans 355 446      
Stock Issued During Period, Value, Employee Stock Purchase Plan $ 16,900 $ 15,000      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 1 year 3 months 1 year 3 months      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 28.00% 23.00%      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 1.30% 0.50%      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 2.20% 2.60%      
Equity Plan Two Thousand Seven [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized     1,900    
Shares Available for Grant 11,400   11,400    
Employee Stock Purchase Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized     2,000    
Weighted-Average Grant-Date Fair Value, Granted $ 16.46 $ 11.64      
Shares Available for Grant 9,900   9,900