Segment Information - Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated
Selling, General and Administrative Expense, Total	$ 43,028	$ 45,705
Marketing Funds fees	18,864	20,206
Real Estate \| Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated
Personnel	21,569	21,692
Professional fees	2,380	2,736
Lease costs	1,523	1,773
Events, travel and related costs	6,801	8,052
Other segment items	5,415	5,521
Selling, General and Administrative Expense, Total	37,688	39,774
Adjustments to arrive at segment expense in Adjusted EBITDA	(6,172)	(5,529)
Total expense in Adjusted EBITDA	31,516	34,245
Mortgage \| Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated
Personnel	3,509	4,126
Professional fees	195	175
Lease costs	117	125
Events, travel and related costs	454	607
Other segment items	1,050	849
Selling, General and Administrative Expense, Total	5,325	5,882
Adjustments to arrive at segment expense in Adjusted EBITDA	(540)	(1,088)
Total expense in Adjusted EBITDA	4,785	4,794
Marketing Funds fees \| Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated
Marketing Funds fees	18,864	20,206
Other \| Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated
Selling, General and Administrative Expense, Total	$ 15	$ 49

Amount of adjusted total expenses included by the entity to calculate the Adjusted EBITDA during the reporting period.

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Amount of adjustments included by the entity to calculate the total expenses in Adjusted EBITDA during the reporting period.

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Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.

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The total expense recognized in the period for promotion, public relations, and brand or product advertising.

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Amount of operating lease expense. Excludes sublease income.

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Amount of selling, general and administrative expense classified as other.

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A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

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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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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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Expenses incurred for travel and entertainment during the period.

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