Accumulated Other Comprehensive Loss - Summary of Accumulated Other Comprehensive Loss (Detail) $ in Thousands	9 Months Ended
	Jan. 30, 2016 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCL Beginning Balance	$ 1,514,123
AOCL at January 30, 2016	(81,863)
AOCL Ending Balance	1,362,547
Cash Flow Hedges [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCL Beginning Balance	(18,668)
Other comprehensive loss before reclassifications	0
Amounts reclassified from AOCL	1,496
AOCL Ending Balance	(17,172)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCL Beginning Balance	(41,678)
Other comprehensive loss before reclassifications	(34,096)
Amounts reclassified from AOCL	11,083
AOCL Ending Balance	(64,691)
AOCI Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCL Beginning Balance	(60,346)
Other comprehensive loss before reclassifications	(34,096)
Amounts reclassified from AOCL	12,579
AOCL Ending Balance	$ (81,863)