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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.

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- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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- Definition

Amount of impairment loss from capitalized computer software costs.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

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The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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The aggregate total amount of expenses directly related to the marketing or selling of products or services.

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No definition available.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025 segment	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of operating segments \| segment	1					2
Derivative, gain (loss) net		$ 300	$ 0	$ (6,100)	$ 0	$ 300
Gain on sale of loans, net		63,561	57,434	131,896	116,069	140,353	$ 50,343
Other capital charges						4,970	0
Impairment of internally developed software costs			0	0	8,591	8,591	0
Sales and marketing		22,144	15,031	54,077	40,979	55,657	52,761
Advertising expense		19,100	13,400	46,000	37,500	50,100	46,500
Software Development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impairment of internally developed software costs					6,300	6,300
Software Purchased
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impairment of internally developed software costs					2,300	2,300
Collateralized Loan Obligations
Accounts, Notes, Loans and Financing Receivable [Line Items]
Change in fair value		9,200	17,900	7,700	29,400	16,500	(3,300)
Marketable Securities
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gain on sale of loans, net		$ 900	$ 900	4,500	$ 2,700	1,100	(2,900)
Change in fair value				$ 2,235		$ 10,176	$ 1,962