CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net (loss)/income	$ (82,906)	$ 85,522
Other Comprehensive (Loss):
Unrealized (losses) on securities available-for-sale	(4,977)	(3,855)
Changes in fair value of financing agreements at fair value due to changes in instrument-specific credit risk	1,255	235
Other Comprehensive (Loss)	(3,722)	(3,620)
Comprehensive (loss)/income before preferred stock dividends	(86,628)	81,902
Dividends required on preferred stock	(8,219)	(8,219)
Comprehensive (Loss)/Income Available to Common Stock and Participating Securities	$ (94,847)	$ 73,683