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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net (loss)/income	$ (55,018)	$ 132,511	$ (238,291)	$ 284,747
Other Comprehensive (Loss):
Unrealized (losses) on securities available-for-sale	(5,851)	(8,029)	(15,765)	(21,473)
Changes in fair value of financing agreements at fair value due to changes in instrument-specific credit risk	0	209	1,255	935
Other Comprehensive (Loss)	(5,851)	(7,820)	(14,510)	(20,538)
Comprehensive (loss)/income before preferred stock dividends	(60,869)	124,691	(252,801)	264,209
Dividends required on preferred stock	(8,218)	(8,218)	(24,656)	(24,656)
Comprehensive (Loss)/Income Available to Common Stock and Participating Securities	$ (69,087)	$ 116,473	$ (277,457)	$ 239,553

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