Segment Information - Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated
Adjusted EBITDA	$ 28,076	$ 26,644	$ 47,069	$ 46,564
Equity-based compensation expense	(3,902)	(4,708)	(9,825)	(9,159)
Acquisition-related expense		(64)		(101)
Fair value adjustments to contingent consideration	(103)	95	(137)	99
Restructuring charges	9	72	41	33
Other	(775)	(666)	(1,839)	(1,076)
Interest income	949	1,141	1,950	2,145
Interest expense	(9,191)	(8,840)	(18,447)	(17,085)
Depreciation and amortization	(7,400)	(8,008)	(15,252)	(16,041)
Income (loss) before provision for income taxes	7,663	5,666	3,560	5,379
Real Estate
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated
Adjusted EBITDA	29,771	28,721	49,974	51,413
Mortgage
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated
Adjusted EBITDA	(1,681)	(1,457)	(2,842)	(4,054)
Other.
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated
Adjusted EBITDA	$ (14)	$ (620)	$ (63)	$ (795)