Stockholders' Equity - Accumulated Other Comprehensive Loss (Details) $ in Thousands	6 Months Ended
	Oct. 31, 2021 USD ($)
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	$ 822,462
Other comprehensive (loss) income before reclassification	(3,381)
Reclassification to earnings from accumulated other comprehensive income	4,513
Ending balance	951,351
Other comprehensive income on derivative instruments before reclassification, tax	200
Amount expected to be reclassified to earnings during next twelve months	1,500
Accumulated Other Comprehensive Income
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	4,759
Ending balance	5,891
Foreign Currency Translation
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	20,764
Other comprehensive (loss) income before reclassification	(4,119)
Reclassification to earnings from accumulated other comprehensive income	0
Ending balance	16,645
Derivative Financial Instruments
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	(16,005)
Other comprehensive (loss) income before reclassification	738
Reclassification to earnings from accumulated other comprehensive income	4,513
Ending balance	$ (10,754)