Debt Facilities - Summary of Debt Facilities (Details) - USD ($) $ in Thousands	Jul. 31, 2026	Apr. 30, 2026
Debt Instrument, Redemption [Line Items]
Senior secured notes payable, net	$ 266,205	$ 263,681
Non-recourse notes payable, net	357,655	458,685
Total debt	623,860	722,366
Senior secured notes payable
Debt Instrument, Redemption [Line Items]
Debt facilities, gross	304,061	300,000
Debt issuance costs	(17,760)	(15,041)
Original issue discount	(10,200)	(10,800)
Non-cash debt discount - warrant	(9,896)	(10,478)
Senior secured notes payable, net	266,205	263,681
Nonrecourse
Debt Instrument, Redemption [Line Items]
Debt issuance costs	(1,514)	(2,346)
Non-recourse notes payable, net	357,655	458,685
Non-recourse notes payable - 2024-2 Issuance
Debt Instrument, Redemption [Line Items]
Debt facilities, gross	41,247	63,773
Non-recourse notes payable - 2025-1 Issuance
Debt Instrument, Redemption [Line Items]
Debt facilities, gross	55,184	71,650
Non-recourse notes payable - 2025-2 Issuance
Debt Instrument, Redemption [Line Items]
Debt facilities, gross	91,000	110,758
Non-recourse notes payable - 2025-3 Issuance
Debt Instrument, Redemption [Line Items]
Debt facilities, gross	66,694	88,209
Non-recourse notes payable - 2025-4 Issuance
Debt Instrument, Redemption [Line Items]
Debt facilities, gross	$ 105,044	$ 126,641

Debt Instrument, Noncash Debt Discount, Warrants

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of long-term debt and lease obligation, including portion classified as current.

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Amount of long-term notes payable classified as other.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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