Stockholders' Equity - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	$ 1,460,521	$ 1,274,757	$ 1,064,498
Other comprehensive income (loss) before reclassification	(8,266)	6,494	(30,864)
Reclassification to earnings from accumulated other comprehensive income (loss)	(2,148)	(2,884)	1,778
Ending balance	1,420,180	1,460,521	1,274,757
Other comprehensive loss on derivative instruments before reclassification, tax	1,900	3,700	300
Reclassification to earnings from accumulated other comprehensive income (loss) on derivative instruments	700	900	600
Gain (loss) on intra-entity transactions, long-term investment, tax	(700)	(1,600)
Accumulated Other Comprehensive Income (Loss)
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	(31,519)	(35,129)	(6,043)
Ending balance	(41,933)	(31,519)	(35,129)
Foreign Currency Translation
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	(35,071)	(35,129)	(5,041)
Other comprehensive income (loss) before reclassification	(355)	58	(30,088)
Reclassification to earnings from accumulated other comprehensive income (loss)	0	0	0
Ending balance	(35,426)	(35,071)	(35,129)
Intra-Entity Transactions That Are of a Long-Term Investment Nature
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	(4,929)	0	0
Other comprehensive income (loss) before reclassification	(1,958)	(4,929)	0
Reclassification to earnings from accumulated other comprehensive income (loss)	0		0
Ending balance	(6,887)	(4,929)	0
Derivative Financial Instruments
Accumulated other comprehensive (loss) income [Roll Forward]
Beginning balance	8,481	0	(1,002)
Other comprehensive income (loss) before reclassification	(5,953)	11,365	(776)
Reclassification to earnings from accumulated other comprehensive income (loss)	(2,148)	(2,884)	1,778
Ending balance	$ 380	$ 8,481	$ 0