Accumulated Other Comprehensive Loss ("AOCL") - Summary of Accumulated Other Comprehensive Loss (Detail) $ in Thousands	6 Months Ended
	Oct. 26, 2019 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 1,477,259
Ending Balance	1,455,831
Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(10,830)
Other comprehensive loss before reclassifications	0
Amounts reclassified from AOCL	(1,599)
Ending Balance	(12,429)
Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(77,439)
Other comprehensive loss before reclassifications	2,815
Amounts reclassified from AOCL	0
Ending Balance	(74,624)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(88,269)
Other comprehensive loss before reclassifications	2,815
Amounts reclassified from AOCL	(1,599)
Ending Balance	$ (87,053)