CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) (USD $) In Thousands	Total		7.875% Series A Cumulative Redeemable Preferred Stock	7.625% Series C Cumulative Redeemable Preferred Stock	7.50% Series D Cumulative Redeemable Preferred Stock	Common Stock Par Value	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Accumulated Deficit 7.875% Series A Cumulative Redeemable Preferred Stock	Accumulated Deficit 7.625% Series C Cumulative Redeemable Preferred Stock	Accumulated Deficit 7.50% Series D Cumulative Redeemable Preferred Stock	7.875% Series A Cumulative Redeemable Preferred Stock	7.625% Series C Cumulative Redeemable Preferred Stock	7.50% Series D Cumulative Redeemable Preferred Stock
Beginning balance at Dec. 31, 2012	$ 15,924,444					$ 9,472	$ 14,740,774	$ 3,053,242	$ (2,792,103)				$ 177,088	$ 290,514	$ 445,457
Net income (loss)	2,700,949								2,700,949
Unrealized gains (losses) on available-for-sale securities	(4,133,589)							(4,133,589)
Reclassification adjustment for net (gains) losses included in net income (loss)	(374,443)							(374,443)
Exercise of stock options	2,204					2	2,202
Stock compensation expense	1,762					(3)	1,765
Net proceeds from direct purchase and dividend reinvestment	2,166					2	2,164
Contingent beneficial conversion feature on 4% Convertible Senior Notes	12,833						12,833
Preferred dividends declared			(10,945)	(17,156)	(25,875)					(10,945)	(17,156)	(25,875)
Common dividends declared, $0.90 per share	(1,136,626)								(1,136,626)
Ending balance at Sep. 30, 2013	12,945,724					9,473	14,759,738	(1,454,790)	(1,281,756)				177,088	290,514	445,457
Beginning balance at Dec. 31, 2013	12,405,055	[1]				9,474	14,765,761	(2,748,933)	(534,306)				177,088	290,514	445,457
Net income (loss)	(184,007)								(184,007)
Unrealized gains (losses) on available-for-sale securities	1,872,427							1,872,427
Reclassification adjustment for net (gains) losses included in net income (loss)	(91,314)							(91,314)
Stock compensation expense	998						998
Net proceeds from direct purchase and dividend reinvestment	1,786					2	1,784
Contingent beneficial conversion feature on 4% Convertible Senior Notes	12,765						12,765
Preferred dividends declared			(10,944)	(17,157)	(25,875)					(10,944)	(17,157)	(25,875)
Common dividends declared, $0.90 per share	(852,786)								(852,786)
Ending balance at Sep. 30, 2014	$ 13,110,948					$ 9,476	$ 14,781,308	$ (967,820)	$ (1,625,075)				$ 177,088	$ 290,514	$ 445,457

[1] Derived from the audited consolidated financial statements at December 31, 2013.