Segment Reporting - Services Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Total services revenue	$ 11,797	$ 27,281	$ 22,781	$ 56,629
Title
Segment Reporting Information [Line Items]
Total services revenue	3,233	4,895	5,787	11,298
Valuation
Segment Reporting Information [Line Items]
Total services revenue	4,544	10,036	8,117	19,053
Single family rental
Segment Reporting Information [Line Items]
Total services revenue	1,619	8,227	4,054	15,457
Asset management technology platform
Segment Reporting Information [Line Items]
Total services revenue	1,209	1,274	2,375	2,606
Real estate owned asset management
Segment Reporting Information [Line Items]
Total services revenue	888	739	1,800	1,552
Other real estate services
Segment Reporting Information [Line Items]
Total services revenue	0	4	1	5
Real estate technology services
Segment Reporting Information [Line Items]
Total services revenue	20	0	27	0
Mortgage
Segment Reporting Information [Line Items]
Total services revenue	$ 284	$ 2,106	$ 620	$ 6,658