Accumulated Other Comprehensive Loss ("AOCL") - Summary of Accumulated Other Comprehensive Loss (Detail) $ in Thousands	9 Months Ended
	Jan. 28, 2017 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCL Beginning Balance	$ 1,441,746
AOCL Ending Balance	1,386,075
Cash Flow Hedges [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCL Beginning Balance	(16,734)
Other comprehensive loss before reclassifications	0
Amounts reclassified from AOCL	1,307
AOCL Ending Balance	(15,427)
Currency Translation Adjustment [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCL Beginning Balance	(51,230)
Other comprehensive loss before reclassifications	(28,176)
Amounts reclassified from AOCL	0
AOCL Ending Balance	(79,406)
AOCI Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCL Beginning Balance	(67,964)
Other comprehensive loss before reclassifications	(28,176)
Amounts reclassified from AOCL	1,307
AOCL Ending Balance	$ (94,833)