CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Consolidated net (loss)/income	$ (18,826)	$ 850
Adjustments to reconcile net income to net cash from operating activities
Stock-based management fee and compensation expense	892	1,108
Discount accretion on mortgage loans	(3,281)	(7,842)
Interest and discount accretion on investment in debt securities	(4,946)	(5,558)
Discount accretion on investment in beneficial interests	(4,055)	(6,661)
Gain on debt extinguishment	(47)	0
Gain on sale of real estate owned properties	(73)	(2)
Loss on sale of securities	2,974	79
Impairment of real estate owned	796	100
Credit loss expense on mortgage loans and beneficial interests	114	277
Net decrease in the net present value of expected credit losses	(3,487)	(4,939)
Loss on loans and joint venture refinancing on beneficial interests	9,809	7,959
Amortization of debt discount and prepaid financing costs	1,544	1,984
Undistributed loss from investment in affiliates	363	418
Other non-cash adjustment	0	(108)
Fair value adjustment on put option liability	3,461	6,795
Acceleration of put option settlement	0	3,531
Net change in operating assets and liabilities
Prepaid expenses and other assets	(9,646)	(922)
Receivable from Servicer	(64)	9,293
Accrued expenses, management fee payable, and other liabilities	836	(3,882)
Net cash from operating activities	(23,636)	2,480
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of mortgage loans and related balances	(14,088)	(2,174)
Principal paydowns on mortgage loans	48,541	97,122
Proceeds from refinancing and sale of securities available-for-sale and beneficial interests	29,413	82,922
Purchase of securities available-for-sale and beneficial interests	(16,335)	(84,492)
Principal and interest collection on debt securities available-for-sale and beneficial interests	24,046	41,091
Principal and interest collection on debt securities held-to-maturity	15,038	0
Proceeds from sale of property held-for-sale	1,874	765
Investment in equity method investments	(726)	(6,090)
Distribution from affiliates	495	699
Net cash from investing activities	88,258	129,843
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from repurchase transactions	24,095	96,776
Repayments on repurchase transactions	(56,824)	(133,318)
Repayments on secured borrowings	(29,630)	(73,134)
Repurchase of the Company's senior convertible notes	(952)	(75)
Payment of prepaid financing costs on notes payable	(55)	0
Repurchase of preferred stock and warrants	0	(34,051)
Repurchase of common stock	0	(4,653)
Sale of common stock, net of offering costs	2,954	0
Sale of common stock pursuant to dividend reinvestment plan	0	200
Distribution to non-controlling interests	(62)	(1,016)
Dividends paid on common stock and preferred stock	(11,677)	(15,906)
Net cash from financing activities	(72,151)	(165,177)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(7,529)	(32,854)
CASH AND CASH EQUIVALENTS, beginning of period	47,845	84,426
CASH AND CASH EQUIVALENTS, end of period	40,316	51,572
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for interest	28,481	15,867
Cash paid for income taxes	215	826
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Transfer of debt securities from investments in securities available-for-sale to investments in securities held-to-maturity	83,052	0
Amortization of unrealized loss on debt securities transferred to held-to-maturity	3,172	0
Unrealized gain/(loss) on available-for-sale securities	2,947	(19,716)
Issuance of common stock for management fee and compensation expense	892	1,108
Other non-cash beneficial interest charges	504	0
Treasury stock received through distributions from investment in Manager	25	232
Net transfer of loans to property held-for-sale	9	2,233
Non-cash adjustments to basis in mortgage loans	0	18
Net transfer of loans to mortgage held-for-investment, net from mortgage loans held-for-sale, net	$ 0	$ (29,572)