Segment Reporting - Services Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Total services revenue	$ 27,281	$ 29,464	$ 56,629	$ 52,359
Title
Segment Reporting Information [Line Items]
Total services revenue	4,895	9,399	11,298	17,456
Valuation
Segment Reporting Information [Line Items]
Total services revenue	9,032	7,478	17,001	11,400
Single family rental
Segment Reporting Information [Line Items]
Total services revenue	8,227	5,622	15,457	9,071
REO asset management
Segment Reporting Information [Line Items]
Total services revenue	739	587	1,552	1,167
Other real estate services
Segment Reporting Information [Line Items]
Total services revenue	4	63	5	76
Asset management technology platform
Segment Reporting Information [Line Items]
Total services revenue	1,274	1,520	2,606	3,026
Other technology services
Segment Reporting Information [Line Items]
Total services revenue	1,004	1,019	2,052	1,983
Mortgage
Segment Reporting Information [Line Items]
Total services revenue	2,106	3,732	6,658	8,083
All Other
Segment Reporting Information [Line Items]
Total services revenue	$ 0	$ 44	$ 0	$ 97