Warehouse Credit Facilities of Consolidated VIEs - Schedule of Terms of the Warehouse Credit Facilities (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Line of Credit Facility [Line Items]
Restricted cash	$ 47,068	$ 73,234	$ 73,095
Facility One
Line of Credit Facility [Line Items]
Execution Date	May 30, 2012
Maturity Date	Jul. 21, 2025
Aggregate borrowings limit	$ 200,000
Aggregate principal balance of finance receivables pledged as collateral		223,207
Outstanding balance		177,375
Restricted cash		8,961
Facility Two
Line of Credit Facility [Line Items]
Execution Date	Nov. 19, 2013
Maturity Date	Jun. 02, 2025
Aggregate borrowings limit	$ 200,000
Aggregate principal balance of finance receivables pledged as collateral	87,508	64,970
Outstanding balance	68,689	51,012
Restricted cash	$ 3,196	2,550
Facility Three
Line of Credit Facility [Line Items]
Execution Date	Jul. 11, 2019
Maturity Date	Aug. 29, 2025
Aggregate borrowings limit	$ 200,000
Aggregate principal balance of finance receivables pledged as collateral	152,172	165,927
Outstanding balance	123,331	117,264
Restricted cash	$ 6,422	6,485
Facility Four
Line of Credit Facility [Line Items]
Execution Date	Nov. 18, 2022
Maturity Date	Sep. 12, 2025
Aggregate borrowings limit	$ 225,000
Aggregate principal balance of finance receivables pledged as collateral	162,435	92,978
Outstanding balance	129,792	75,617
Restricted cash	$ 6,143	$ 2,692

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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Balance Type:	credit
Period Type:	instant

- Definition

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

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- Definition

Date the credit facility first became available, in YYYY-MM-DD format.

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- Definition

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.

+ References

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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- Definition

Aggregate principal balance of finance receivables pledged as collateral.

+ References

No definition available.

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