Condensed Consolidated Statement of Cash Flows - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021
Cash flows provided by (used in) operating activities:
Shares issued in connection with incentive fee payment (non-cash)		$ 325	$ 0
Share-based Payment Arrangement, Noncash Expense		650	0
Net cash provided by (used in) operating activities		81,339	44,168
Cash Flows from Investing Activities:
Purchase of securities		(718,960)	(1,329,629)
Purchase of loans		(2,014,793)	(733,275)
Capital improvements of real estate owned		(75)	(1,893)
Proceeds from disposition of securities		659,827	772,618
Proceeds from disposition of loans		19,520	1,064
Contributions to investments in unconsolidated entities		(10,294)	(7,497)
Distributions from investments in unconsolidated entities		170,513	70,211
Proceeds from disposition of real estate owned		5,147	630
Proceeds from principal payments of securities		181,108	225,901
Proceeds from principal payments of loans		279,580	136,328
Proceeds from investments sold short		622,122	242,239
Repurchase of securities sold short		(553,190)	(133,798)
Payments on financial derivatives		(60,210)	(31,732)
Proceeds from financial derivatives		122,232	34,018
Payments made on reverse repurchase agreements		(16,595,096)	(7,242,821)
Proceeds from reverse repurchase agreements		16,537,455	7,118,141
Due from brokers, net		17,579	670
Due to brokers, net		28,405	(298)
Net cash provided by (used in) investing activities		(1,309,130)	(879,123)
Cash flows provided by (used in) financing activities:
Net proceeds from issuance of common stock	[1]	45,301	0
Proceeds from Issuance of Preferred Stock and Preference Stock	[1]	511	0
Offering costs paid		(658)	0
Payments for Repurchase of Common Stock		(1,164)	0
Dividends paid		(60,234)	(34,553)
Contributions from non-controlling interests		10,840	6,528
Distributions to non-controlling interests		(15,044)	(15,336)
Proceeds from issuance of other secured borrowings		15,063	47,343
Principal payments on other secured borrowings		(22,511)	(12,831)
Borrowings under repurchase agreements		5,179,777	3,081,092
Repayments of repurchase agreements		(4,671,100)	(2,621,656)
Proceeds from Issuance of Unsecured Debt		206,385	0
Proceeds from Issuance of Other Secured Borrowings, at fair value		687,977	534,477
Repayments of Other secured borrowings, at fair value		0	(111,529)
Due from brokers, net		(15,668)	(13,735)
Due to brokers, net		(69)	(1,797)
Net cash provided by (used in) financing activities		1,359,406	858,003
Net Increase (Decrease) in Cash, Cash Equivalents, and Restricted Cash		131,615	23,048
Cash, Cash Equivalents, and Restricted Cash, Beginning of Period		92,836	111,822
Cash, Cash Equivalents, and Restricted Cash, End of Period		224,451	134,870
Supplemental disclosure of cash flow information:
Interest paid		34,349	22,741
Income tax paid		88	770
Dividends payable		11,657	7,963
Shares issued in connection with incentive fee payment (non-cash)		325	0
Share-based Payment Arrangement, Noncash Expense		650	0
Transfers from mortgage loans to real estate owned (non-cash)		1,018	12,554
Transfers from mortgage loans to investments in non-consolidated entities (non-cash)		177,997	74,836
Transfers from corporate loans to investments in unconsolidated entities (non-cash)		1,000	0
Purchase of Loans Non Cash		0	800
Principal payments on Other secured borrowings, at fair value (non-cash)		(213,202)	(212,254)
Proceeds received from Other secured borrowings, at fair value (non-cash)		112,889	40,670
Principal payments on Other secured borrowings (non-cash)		(43,719)	0
Proceeds from issuance of Other secured borrowings (non-cash)		0	800
Proceeds from principal payments of investments (non-cash)		220,672	212,254
Repayments of repurchase agreement (non-cash)		$ (113,218)	$ (39,618)

[1] Net of discounts and commissions.