Intangible Assets, Net - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Jul. 31, 2022	Apr. 30, 2022
Intangible Assets Excluding Goodwill [Line Items]
Total definite-lived intangible assets, Gross Carrying Amount	$ 190,036	$ 189,144
Total definite-lived intangible assets, Accumulated Amortization	(129,793)	(126,380)
Total definite-lived intangible assets, Net Carrying Amount	60,243	62,764
Indefinite-lived intangible assets, Net Carrying Amount	430	430
Total Intangible assets, Gross Carrying Amount	190,466	189,574
Total Intangible assets, Net Carrying Amount	60,673	63,194
Customer Relationships
Intangible Assets Excluding Goodwill [Line Items]
Total definite-lived intangible assets, Gross Carrying Amount	89,980	89,980
Total definite-lived intangible assets, Accumulated Amortization	(69,476)	(67,955)
Total definite-lived intangible assets, Net Carrying Amount	20,504	22,025
Developed Technology
Intangible Assets Excluding Goodwill [Line Items]
Total definite-lived intangible assets, Gross Carrying Amount	26,451	25,812
Total definite-lived intangible assets, Accumulated Amortization	(20,035)	(19,395)
Total definite-lived intangible assets, Net Carrying Amount	6,416	6,417
Patents, Trademarks, and Trade Names
Intangible Assets Excluding Goodwill [Line Items]
Total definite-lived intangible assets, Gross Carrying Amount	68,706	68,663
Total definite-lived intangible assets, Accumulated Amortization	(40,282)	(39,030)
Total definite-lived intangible assets, Net Carrying Amount	28,424	29,633
Definite-lived Intangible Assets Excluding Patents in Progress
Intangible Assets Excluding Goodwill [Line Items]
Total definite-lived intangible assets, Gross Carrying Amount	185,137	184,455
Total definite-lived intangible assets, Accumulated Amortization	(129,793)	(126,380)
Total definite-lived intangible assets, Net Carrying Amount	55,344	58,075
Patents in Progress
Intangible Assets Excluding Goodwill [Line Items]
Total definite-lived intangible assets, Gross Carrying Amount	4,899	4,689
Total definite-lived intangible assets, Net Carrying Amount	$ 4,899	$ 4,689