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Equity (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Dividends (Textual) [Abstract]        
Dividends declared per share $ 0.50 $ 0.50 $ 1.00 $ 1.00
Dividends Payable, Date Declared Sep. 15, 2017      
Dividends Payable, Date of Record Sep. 29, 2017      
Dividends Payable, Date to be Paid Oct. 13, 2017      
Dividends paid     $ 81.1 $ 82.6