Note 4 - Segment Reporting - Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Revenues	$ 325,758	$ 375,234	$ 991,565	$ 1,068,756
Net gains (losses) on investments and other financial instruments	2,098	17,652	12,578	42,901
Other non-operating revenue	0	0	0	247
Services Revenue, Net	37,773	33,943	90,132	93,945
Accounts and notes receivable	166,730		166,730		$ 121,294
Mortgage segment
Revenues	274,659	320,013	862,757	922,040
homegenius segment
Revenues	45,091	29,793	104,337	78,866
Accounts and notes receivable	17,700		17,700		$ 18,800
All Other activities segment
Revenues	3,996	8,641	12,100	25,869
Title services
Services Revenue, Net	12,926	5,085	30,382	17,671
Asset management services
Services Revenue, Net	9,538	7,379	20,976	22,275
Valuation services
Services Revenue, Net	9,418	7,177	22,798	17,195
SaaS and other real estate services
Services Revenue, Net	837	2,120	2,742	5,340
Mortgage services
Services Revenue, Net	5,027	3,914	13,110	10,965
All Other services
Services Revenue, Net	27	8,268	124	20,499
Operating Segments | Mortgage and homegenius segments
Revenues	319,750	349,806	967,094	1,000,906
Intersegment Eliminations
Revenues	$ (86)	$ (865)	$ (207)	$ (1,167)