Stockholders' Equity - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	$ 1,274,757	$ 1,064,498	$ 822,462
Other comprehensive income (loss) before reclassification	11,423	(30,864)	(19,678)
Losses on intra-entity transactions that are of a long-term investment nature	(4,929)
Reclassification to earnings from accumulated other comprehensive income (loss)	(2,884)	1,778	8,876
Ending balance	1,460,521	1,274,757	1,064,498
Other comprehensive loss on derivative instruments before reclassification, tax	3,700	300	2,000
Reclassification to earnings from accumulated other comprehensive income (loss) on derivative instruments	900	600	2,900
Gain (loss) on intra-entity transactions, long-term investment, tax	(1,600)
Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	(35,129)	(6,043)	4,759
Ending balance	(31,519)	(35,129)	(6,043)
Foreign Currency Translation
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	(35,129)	(5,041)	20,764
Other comprehensive income (loss) before reclassification	58	(30,088)	(25,805)
Losses on intra-entity transactions that are of a long-term investment nature	(4,929)
Reclassification to earnings from accumulated other comprehensive income (loss)	0	0	0
Ending balance	(40,000)	(35,129)	(5,041)
Derivative Financial Instruments
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	0	(1,002)	(16,005)
Other comprehensive income (loss) before reclassification	11,365	(776)	6,127
Losses on intra-entity transactions that are of a long-term investment nature	0
Reclassification to earnings from accumulated other comprehensive income (loss)	(2,884)	1,778	8,876
Ending balance	$ 8,481	$ 0	$ (1,002)