Leases - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Lessee, Lease, Description [Line Items]
Cash paid for operating lease liabilities	$ 1,600	$ 1,700
Headquarters in Atlanta, GA
Lessee, Lease, Description [Line Items]
Lease income	$ 287
Minimum | Various Operating Leases
Lessee, Lease, Description [Line Items]
Operating lease terms	3 years
Maximum | Various Operating Leases
Lessee, Lease, Description [Line Items]
Operating lease terms	5 years