Segment Reporting - Segment Reconciliations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total revenues	$ 28,513	$ 22,211	$ 130,859	$ 71,439
Interest expense	40,792	28,290	113,805	83,752
Interest income	12,928	3,935	39,588	11,276
Net loss before income tax benefit	(54,881)	(20,403)	(148,153)	(56,348)
Income tax expense (benefit)	22,444	0	(613)	0
NET LOSS	(77,325)	(20,403)	(147,540)	(56,348)
Assets	3,629,674		3,629,674		$ 3,635,206
Operating Segments | Secondary Life Insurance
Segment Reporting Information [Line Items]
Total revenues	14,422	18,238	44,800	61,199
Interest expense	24,983	21,410	72,022	63,114
Interest income	209	226	1,056	1,594
Net loss before income tax benefit	(12,147)	(9,169)	(39,314)	(19,792)
Assets	907,197		907,197		904,363
Operating Segments | Beneficient
Segment Reporting Information [Line Items]
Total revenues	14,091	3,709	86,042	9,723
Interest expense	15,809	6,880	41,783	20,638
Interest income	12,719	3,709	38,532	9,678
Net loss before income tax benefit	(33,819)	(2,214)	(86,347)	(11,286)
Assets	2,675,370		2,675,370		2,721,546
Corporate & Other
Segment Reporting Information [Line Items]
Total revenues	0	264	17	517
Interest expense	0	0	0	0
Interest income	0	0	0	4
Net loss before income tax benefit	(8,915)	$ (9,020)	(22,492)	$ (25,270)
Assets	$ 47,107		$ 47,107		$ 9,297