Goodwill and Intangible Assets, Net - Additional Information (Details) - USD ($)	3 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Apr. 30, 2021
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangible assets	$ 4,000,000.0	$ 3,500,000
Weighted-average period for amortization of intangible assets	5 years
Goodwill	$ 64,315,000		$ 64,315,000
Adjustments to goodwill	0	$ 0
Goodwill impairment charges	109,300,000
Goodwill gross	$ 173,600,000
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Weighted-average period for amortization of intangible assets	5 years
Developed Technology
Finite-Lived Intangible Assets [Line Items]
Weighted-average period for amortization of intangible assets	6 years
Patents, Trademarks, and Trade Names
Finite-Lived Intangible Assets [Line Items]
Weighted-average period for amortization of intangible assets	5 years