Leases - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Lessee Lease Description [Line Items]
Impairment of right-of-use assets	$ 5,471	$ 7,392	$ 0
Operating lease right-of-use assets, net	142,690	167,734
Lease liability	165,041
Infinity Consulting Solutions
Lessee Lease Description [Line Items]
Operating lease right-of-use assets, net	800
Lease liability	1,000
Salo
Lessee Lease Description [Line Items]
Operating lease right-of-use assets, net	2,100
Lease liability	$ 2,900
Lucas Group
Lessee Lease Description [Line Items]
Operating lease right-of-use assets, net		3,800
Lease liability		9,400
Patina Solutions Group
Lessee Lease Description [Line Items]
Operating lease right-of-use assets, net		200
Lease liability		$ 700
Minimum
Lessee Lease Description [Line Items]
Lessee operating lease, term of contract	1 year
Lessee finance lease, term of contract	1 year
Maximum
Lessee Lease Description [Line Items]
Lessee operating lease, term of contract	9 years
Lessee finance lease, term of contract	6 years