Summary of Significant Accounting Policies - Components of Calculation of Basic Net Income Per Ordinary Share and Diluted Net Income Per Ordinary Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Jul. 01, 2017	Jul. 02, 2016
Numerator:
Net income attributable to MKHL	$ 125.5	$ 147.1
Denominator:
Basic weighted average shares (in shares)	154,486,898	174,158,571
Weighted average dilutive share equivalents:
Share options, restricted shares/units, and performance restricted share units (in shares)	2,384,620	2,455,180
Diluted weighted average shares (in shares)	156,871,518	176,613,751
Basic net income per share (in dollars per share)	$ 0.81	$ 0.84
Diluted net income per share (in dollars per share)	$ 0.80	$ 0.83