Accumulated Other Comprehensive Loss ("AOCL") - Summary of Accumulated Other Comprehensive Loss (Detail) $ in Thousands	3 Months Ended
	Jul. 25, 2020 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 834,117
Ending Balance	852,616
Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(5,538)
Other comprehensive loss before reclassifications	0
Amounts reclassified from AOCL	260
Ending Balance	(5,278)
Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(91,501)
Other comprehensive loss before reclassifications	12,589
Amounts reclassified from AOCL	0
Ending Balance	(78,912)
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(97,039)
Other comprehensive loss before reclassifications	12,589
Amounts reclassified from AOCL	260
Ending Balance	$ (84,190)