CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Comprehensive income (loss):
Net income (loss)	$ 36,024	$ (161,327)	$ 93,390	$ (424,121)
Other comprehensive income:
Unrealized gains (losses) on available-for-sale securities, net	(14,081)	(58,369)	(19,984)	(99,324)
Reclassification adjustment for net realized losses (gains) included in net income	0	0	1,313	0
Other comprehensive income (loss)	(14,081)	(58,369)	(18,671)	(99,324)
Comprehensive income (loss) before preferred stock dividends	21,943	(219,696)	74,719	(523,445)
Dividends on preferred stock	18,438	18,438	36,875	36,845
Comprehensive income (loss) available to common stock shareholders	$ 3,505	$ (238,134)	$ 37,844	$ (560,290)