Asset backed debt unamortized fees.

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- Definition

Asset coverage ratio.

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Credit facility revolving period end date.

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- Definition

Percentage of equity interest in funding.

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- Definition

Percentage of notes issued by securitization issuer.

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No definition available.

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Percentage of original principal amount payable.

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Percentage of preferred shares of securitization issuer.

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- Definition

Percentage of public offering price per notes issued.

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Preferred shares of securitization issuer.

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No definition available.

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Investments in notes or bonds that are collateralized by a specific group of underlying assets owned by the issuer of the notes or bonds which are short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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No definition available.

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The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Description of reference rate used for variable rate of debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Description of the frequency of periodic payments (monthly, quarterly, annual).

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Description of any adjustments made to the stated rate to determine the effective rate.

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The average effective interest rate during the reporting period.

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Incremental percentage increase (decrease) in the stated rate on a debt instrument.

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No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

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Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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Weighted average interest rate of debt outstanding.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Date the credit facility terminates, in YYYY-MM-DD format.

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Maximum amount borrowed under the credit facility at any time during the period.

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The fair value of notes issued in noncash investing and financing activities.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Debt - Additional Information (Details) - USD ($) $ in Thousands							1 Months Ended							3 Months Ended		6 Months Ended	12 Months Ended
	Dec. 15, 2023	Dec. 15, 2022	Dec. 15, 2021	Dec. 15, 2020	Apr. 06, 2018	Apr. 05, 2018	Feb. 29, 2024	Aug. 31, 2023	Oct. 31, 2021	Mar. 31, 2021	Mar. 31, 2020	Sep. 30, 2019	Nov. 30, 2017	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2024	Sep. 30, 2023	Mar. 31, 2023
Debt Instrument [Line Items]
Annualized weighted average cost of debt														7.10%		7.10%		5.80%
Amount Borrowed														$ 168,878		$ 168,878	$ 9,400
Percentage of public offering price per notes issued									101.50%	99.40%
2031 Asset-Backed Debt
Debt Instrument [Line Items]
Percentage of preferred shares of securitization issuer												100.00%
Preferred shares of securitization issuer												$ 55,400
Asset backed debt														226,300		226,300	228,000
Unamortized fees																900	$ 1,200
2036 Asset-Backed Debt
Debt Instrument [Line Items]
Asset backed debt														$ 287,000		287,000
Unamortized fees																$ 3,200
SBA Debentures
Debt Instrument [Line Items]
Debt securitization amount							$ 350,600					301,400
2026 Notes
Debt Instrument [Line Items]
Notes issued									$ 85,000	$ 100,000					$ 185,000
Debt instrument, interest rate			4.25%
Interest payment terms									Interest on the 2026 Notes is paid semi-annually on April 1 and October 1 of each year, at a rate of 4.25% per year, commencing October 1, 2021.
Debt instrument, periodic payment															semi-annually
Debt instrument, maturity date				Apr. 01, 2026
2023 Notes
Debt Instrument [Line Items]
Notes issued													$ 138,600
Notes payable to members													$ 138,600
Debt instrument, interest rate											4.30%
Interest payment terms																Interest on the 2023 Notes was payable semi-annually in arrears on June 15 and December 15 of each year, commencing June 15, 2018.
Debt instrument, periodic payment																four annual installments
Percentage of original principal amount payable	55.00%	15.00%	15.00%	15.00%
Debt instrument, interest rate, increase (decrease)											3.80%
Class A-1 Senior Secured Floating Rate Loans \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument												$ 78,500
Reference rate description																three-month SOFR plus 1.8%
Class A-1 Senior Secured Floating Rate Loans \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument							60,000
Reference rate description																three-month SOFR plus 3.90%
Class A-2 Senior Secured Fixed Rate Notes due 2031 \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument, interest rate												3.70%
Debt instrument												$ 15,000
Class B-1 Senior Secured Floating Rate Notes due 2031 \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument												$ 14,000
Reference rate description																three-month SOFR plus 2.9%
Class B-1 Senior Secured Floating Rate Notes due 2031 \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Reference rate description																three-month SOFR plus 5.90%
Class B-2 Senior Secured Fixed Rate Notes due 2031 \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument, interest rate												4.30%
Debt instrument												$ 16,000
Class B-2 Senior Secured Fixed Rate Notes due 2031 \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument							63,600
Class C 1 Secured Deferrable Floating Rate Notes due 2031 \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument												$ 19,000
Reference rate description												plus 4.0%
Percentage points added to reference rate												4.00%
Class C-2 Secured Deferrable Fixed Rate Notes due 2031 \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument, interest rate												5.40%
Debt instrument												$ 8,000
Class D Secured Deferrable Floating Rate Loans due 2031 \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument												$ 18,000
Reference rate description																three-month SOFR plus 4.8%
Percentage of notes issued by securitization issuer												100.00%
Class A 1 Senior Secured Floating Rate Notes due 2031 \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument												$ 77,500
Reference rate description																three-month SOFR plus 1.8%
Class D Secured Deferrable Floating Rate Notes
Debt Instrument [Line Items]
Annualized weighted average cost of debt														7.10%		7.10%	7.10%
Class D Secured Deferrable Floating Rate Notes \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Percentage of notes issued by securitization issuer												100.00%
Class D Secured Deferrable Floating Rate Notes \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Annualized weighted average cost of debt														8.10%		8.10%
Class A1 Senior Secured Floating Rate Notes Due2036 [Member] \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument							139,500
Reference rate description																three-month SOFR plus 2.30%
Class D Secured Deferrable Floating Rate Loans Due2036 [Member] \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument							21,000
Class C1 Secured Deferrable Floating Rate Notes Due2036 [Member] \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument							28,000
Class B1 Senior Secured Floating Rate Notes Due2036 [Member] \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument							24,500
Reference rate description																three-month SOFR plus 2.70%
SOFR
Debt Instrument [Line Items]
Percentage points added to reference rate								260.00%
SOFR \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Percentage points added to reference rate																1.80%
SOFR \| Class A-1 Senior Secured Floating Rate Loans \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Percentage points added to reference rate																2.30%
SOFR \| Class B-1 Senior Secured Floating Rate Notes due 2031 \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Percentage points added to reference rate												2.90%
SOFR \| Class B-1 Senior Secured Floating Rate Notes due 2031 \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Reference rate description																three-month SOFR plus 2.90%
SOFR \| Class D Secured Deferrable Floating Rate Loans due 2031 \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Percentage points added to reference rate												4.80%
SOFR \| Class A 1 Senior Secured Floating Rate Notes due 2031 \| 2031 Asset-Backed Debt
Debt Instrument [Line Items]
Percentage points added to reference rate												1.80%
SOFR \| Class A2 Senior Secured Fixed Rate Notes Due2036 [Member] \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Debt instrument							$ 14,000
Percentage points added to reference rate																2.70%
SOFR \| Class A1 Senior Secured Floating Rate Notes Due2036 [Member] \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Percentage points added to reference rate							2.30%
SOFR \| Class D Secured Deferrable Floating Rate Loans Due2036 [Member] \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Percentage points added to reference rate							5.90%
SOFR \| Class C Notes [Member] \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Percentage points added to reference rate																3.90%
SOFR \| Class B Notes [Member] \| 2036 Asset-Backed Debt
Debt Instrument [Line Items]
Percentage points added to reference rate							2.90%
Senior Securities
Debt Instrument [Line Items]
Asset coverage ratio requirement					150.00%	200.00%										183.00%	230.00%
Truist Credit Facility
Debt Instrument [Line Items]
Annualized weighted average cost of debt														7.70%		7.70%	7.70%
Amount Borrowed														$ 386,000		$ 386,000
Basis points description																Credit Facility bears interest at SOFR (or an alternative risk-free floating interest rate index) plus 236 basis points and, after the revolving period, the rate will reset to Base Rate (or an alternative risk-free floating interest rate index) plus 250 basis points for the remaining two years, maturing in August 2026.
Maturity date																Aug. 31, 2026
Revolving period end date																2024-08
Outstanding borrowings														168,900			$ 9,400
Unused borrowing capacity														$ 217,100		$ 217,100	$ 376,600
Percentage of equity interest in funding																100.00%
Truist Credit Facility \| SOFR
Debt Instrument [Line Items]
Basis points description															236 basis points