Consolidated Statement of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Series A Preferred Stock	Series B Preferred Stock	Series C Preferred Stock	Preferred Stock Series A Preferred Stock	Preferred Stock Series B Preferred Stock	Preferred Stock Series C Preferred Stock	Common Stock	Total Additional Paid-in Capital	Total Additional Paid-in Capital Series B Preferred Stock	Total Additional Paid-in Capital Series C Preferred Stock	Accumulated Deficit	Accumulated Deficit Series A Preferred Stock	Accumulated Deficit Series B Preferred Stock	Accumulated Deficit Series C Preferred Stock	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2018					2,181	6,369	0	43,702
Beginning balance at Dec. 31, 2018	$ 1,125,313				$ 2	$ 6	$ 0	$ 44	$ 2,752,552			$ (1,583,421)				$ (43,870)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred dividends		$ (2,249)	$ (13,385)										$ (2,249)	$ (13,385)
Common stock dividends	(124,477)											(124,477)
Preferred stock, called for redemption (in shares)					(2,181)
Preferred stock, called for redemption	(54,514)				$ (2)				(54,512)
Issuance of stock, net (in shares)						2,014		16,064
Issuance of stock, net	321,860		49,795			$ 2		$ 16	321,844	$ 49,793
Stock based compensation, net of withholding requirements (in shares)								111
Stock based compensation, net of withholding requirements	2,694								2,694
Common stock repurchased, net (in shares)								(1,000)
Common stock repurchased, net	(17,768)							$ (1)	(17,767)
Net Income (Loss)	(249,905)											(249,905)
Other comprehensive income (loss)	399,343															399,343
Ending balance (in shares) at Dec. 31, 2019					0	8,383	0	58,877
Ending balance at Dec. 31, 2019	1,436,707				$ 0	$ 8	$ 0	$ 59	3,054,604			(1,973,437)				355,473
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred dividends			(1,375)	$ (8,412)										$ (1,375)	$ (8,412)
Common stock dividends	(75,486)											(75,486)
Preferred stock, called for redemption (in shares)						(8,383)
Preferred stock, called for redemption			$ (209,583)			$ (8)				$ (209,575)
Issuance of stock, net (in shares)							5,347	6,287
Issuance of stock, net	54,575			130,138			$ 5	$ 6	54,569		$ 130,133
Stock based compensation, net of withholding requirements (in shares)								166
Stock based compensation, net of withholding requirements	4,071								4,071
Common stock repurchased, net (in shares)								(40)
Common stock repurchased, net	(777)								(777)
Net Income (Loss)	(215,112)											(215,112)
Other comprehensive income (loss)	(176,442)															(176,442)
Ending balance (in shares) at Dec. 31, 2020					0	0	5,347	65,290
Ending balance at Dec. 31, 2020	938,304				$ 0	$ 0	$ 5	$ 65	3,033,025			(2,273,822)				179,031
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred dividends				(11,473)											$ (11,473)
Common stock dividends	(96,630)											(96,630)
Issuance of stock, net (in shares)							1,500	28,628
Issuance of stock, net	328,780			$ 36,585			$ 2	$ 29	328,751		$ 36,583
Stock based compensation, net of withholding requirements (in shares)								234
Stock based compensation, net of withholding requirements	4,768								4,768
Net Income (Loss)	15,363											15,363
Other comprehensive income (loss)	(72,058)															(72,058)
Ending balance (in shares) at Dec. 31, 2021					0	0	6,847	94,152
Ending balance at Dec. 31, 2021	$ 1,143,639				$ 0	$ 0	$ 7	$ 94	$ 3,403,127			$ (2,366,562)				$ 106,973