CONSOLIDATED STATEMENTS OF CASH FLOWS, (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ (20,196)	$ (14,351)
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Stock based compensation and equity plan amortization	612	167
Realized and unrealized (gains) losses on mortgage-backed securities	110,423	(13,918)
Derivative, Gain (Loss) on Derivative, Net	(22,180)	67,744
Fair Value Adjustments On U.S. Treasury Notes	(31)	0
Changes in operating assets and liabilities
Accrued interest receivable	(5,449)	2,137
Other assets	74	(533)
Accrued interest payable	(404)	(10,349)
Other liabilities	(2,031)	16
Due to affiliates	303	(32)
NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES	61,183	30,881
From mortgage-backed securities investments
Purchases	(4,816,301)	(2,898,616)
Sales	2,598,893	2,692,230
Principal repayments	413,005	384,314
Purchases of U.S. Treasury Securities	37,440	0
Net payments on reverse repurchase agreements	0	30
Note proceeds from (payments on) derivative instruments	1,228	68,223
NET CASH USED IN INVESTING ACTIVITIES	(1,843,071)	109,735
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from repurchase agreements	22,995,280	27,995,556
Principal payments on repurchase agreements	(21,376,997)	(28,162,359)
Cash dividends	(59,019)	(40,065)
Proceeds From Issuance Of Common Stock, net of issuance costs	398,661	35,013
Payments Related To Tax Withholding For Share Based Compensation	299	70
NET CASH PROVIDED BY FINANCING ACTIVITIES	1,957,626	(171,925)
NET INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	175,738	(31,309)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, beginning of period	299,506	278,655
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, end of period	475,244	247,346
Cash paid during the period for:
Interest Paid	5,471	33,395
SUPPLEMENTAL DISCLOSURES OF NONCASH FINANCING ACTIVITIES:
Securities acquired settled in later period	$ 180,619	$ 113,653