Accumulated Other Comprehensive Income- Changes in Components of Accumulated Other Comprehensive Income, Net of Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Apr. 02, 2016	Mar. 28, 2015	Mar. 29, 2014
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 2,241.0	$ 1,806.2	$ 1,047.2
Other comprehensive loss net of tax	(14.0)	(60.4)	(2.9)
Ending balance	1,999.5	2,241.0	1,806.2
Less: other comprehensive income attributable to noncontrolling interest	0.1	0.0	0.0
Other comprehensive income (loss) before reclassifications related to derivative instruments, tax expense (benefit)	(2.6)	3.7
Reclassification from AOCI, tax	1.0
Foreign Currency Translation Losses
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(96.1)	(4.8)	(4.8)
Other comprehensive income (loss) before reclassifications	18.5	(91.3)	0.0
Less: amounts reclassified from AOCI to earnings	0.0	0.0	0.0
Other comprehensive loss net of tax	18.5	(91.3)	0.0
Ending balance	(77.6)	(96.1)	(4.8)
Less: other comprehensive income attributable to noncontrolling interest	0.1
Other comprehensive loss attributable to MKHL	(77.7)
Net Gains (Losses) on Derivatives
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	29.3	(1.6)	1.3
Other comprehensive income (loss) before reclassifications	(22.6)	32.8	(3.4)
Less: amounts reclassified from AOCI to earnings	9.9	1.9	(0.5)
Other comprehensive loss net of tax	(32.5)	30.9	(2.9)
Ending balance	(3.2)	29.3	(1.6)
Less: other comprehensive income attributable to noncontrolling interest	0.0
Other comprehensive loss attributable to MKHL	(3.2)
Accumulated other comprehensive income, tax provisions	(0.3)	3.3
Total Accumulated Other Comprehensive Income (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(66.8)	(6.4)	(3.5)
Other comprehensive income (loss) before reclassifications	(4.1)	(58.5)	(3.4)
Less: amounts reclassified from AOCI to earnings	9.9	1.9	(0.5)
Other comprehensive loss net of tax	(14.0)	(60.4)	(2.9)
Ending balance	(80.8)	$ (66.8)	$ (6.4)
Less: other comprehensive income attributable to noncontrolling interest	0.1
Other comprehensive loss attributable to MKHL	$ (80.9)