Finance Receivables, Net - Finance Receivable Summarized by Fiscal Year of Origination (Details) - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Apr. 30, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025 (2024)	$ 650,330	$ 663,805
2024 (2023)	515,729	524,119
2023 (2022)	238,969	202,501
2022 (2021)	71,679	35,391
2021 (2020)	8,212	2,371
Prior to 2021 (2020)	1,062	721
Total	$ 1,485,981	$ 1,428,908	$ 1,435,388
%	100.00%	100.00%	100.00%
Charge-offs, 2025 (2024)	$ 62,044	$ 87,675
Charge-offs, 2024 (2023)	188,736	211,642
Charge-offs, 2023 (2022)	89,615	72,511
Charge-offs, 2022 (2021)	24,130	13,111
Charge-offs, 2021 (2020)	2,562	957
Charge-offs, Prior to 2021 (2020)	467	453
Charge-offs, Total	367,554	386,349
Customer Rating 1-2
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025 (2024)	42,886	32,854
2024 (2023)	22,136	18,416
2023 (2022)	6,330	5,298
2022 (2021)	1,189	661
2021 (2020)	69	124
Prior to 2021 (2020)	50	13
Total	$ 72,660	$ 57,366
%	4.90%	4.00%
Customer Rating 3-4
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025 (2024)	$ 234,245	$ 236,351
2024 (2023)	171,447	153,436
2023 (2022)	59,807	50,070
2022 (2021)	13,628	7,414
2021 (2020)	1,228	450
Prior to 2021 (2020)	279	178
Total	$ 480,634	$ 447,899
%	32.30%	31.40%
Customer Rating 5-6
Accounts, Notes, Loans and Financing Receivable [Line Items]
2025 (2024)	$ 373,199	$ 394,600
2024 (2023)	322,146	352,267
2023 (2022)	172,832	147,133
2022 (2021)	56,862	27,316
2021 (2020)	6,915	1,797
Prior to 2021 (2020)	733	530
Total	$ 932,687	$ 923,643
%	62.80%	64.60%