Leases - Schedule of Assets and Liabilities Related to Operating Leases (Details) - USD ($) $ in Thousands	Jan. 31, 2022	Apr. 30, 2021
Operating Leases
Right-of-use assets	$ 27,475
Accumulated amortization	(3,165)
Right-of-use assets, net	24,310	$ 25,375
Lease liabilities, current portion	1,846	1,771
Lease liabilities, net of current portion	23,513	$ 24,780
Total operating lease liabilities	$ 25,359