Summary of Significant Accounting and Reporting Policies - Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Total revenue	$ 25,310	$ 26,727	$ 49,703	$ 57,472
Profit share
Disaggregation of Revenue [Line Items]
Total revenue	7,969	9,333	14,699	23,215
New certified loan originations
Disaggregation of Revenue [Line Items]
Total revenue	7,668	15,989	15,347	31,019
Change in estimated revenues
Disaggregation of Revenue [Line Items]
Total revenue	$ 301	$ (6,656)	$ (648)	$ (7,804)

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, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details