CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Net interest income:
Interest income	$ 644,640		$ 697,160		$ 1,984,503		$ 2,147,313
Interest expense	127,069		145,476		378,147		487,321
Net interest income	517,571		551,684		1,606,356		1,659,992
Other income (loss):
Realized gains (losses) on interest rate swaps	(169,083)	[1],[2]	(227,909)	[1],[2]	(650,452)	[1],[2]	(666,112)	[1],[2]
Realized gains (losses) on termination of interest rate swaps	0		(36,658)		(779,333)		(88,685)
Unrealized gains (losses) on interest rate swaps	98,593		6,343		(75,287)		1,441,099
Subtotal	(70,490)		(258,224)		(1,505,072)		686,302
Investment advisory income	8,253		9,558		20,485		35,153
Net gains (losses) on disposal of investments	4,693		43,602		90,296		374,443
Dividend income from affiliates	4,048		4,048		21,141		14,527
Net gains (losses) on trading assets	4,676		(96,022)		(188,041)		(40,427)
Net unrealized gains (losses) on interest-only Agency mortgage-backed securities	(37,944)		(7,099)		(56,652)		184,549
Impairment of goodwill							(23,987)
Loss on previously held equity interest in CreXus							(18,896)
Other income (loss)	(22,249)		4,212		(16,102)		11,536
Subtotal	(38,523)		(41,701)		(128,873)		536,898
Total other income (loss)	(109,013)		(299,925)		(1,633,945)		1,223,200
General and administrative expenses:
Compensation and management fee	39,028		41,774		116,826		123,981
Other general and administrative expenses	12,289		16,970		34,058		51,806
Total general and administrative expenses	51,317		58,744		150,884		175,787
Income (loss) before income taxes	357,241		193,015		(178,473)		2,707,405
Income taxes	2,385		557		5,534		6,456
Net income (loss)	354,856		192,458		(184,007)		2,700,949
Dividends on preferred stock	17,992		17,992		53,976		53,976
Net income (loss) available (related) to common stockholders	336,864		174,466		(237,983)		2,646,973
Net income (loss) per share available (related) to common stockholders:
Basic	$ 0.36		$ 0.18		$ (0.25)		$ 2.79
Diluted	$ 0.35		$ 0.18		$ (0.25)		$ 2.69
Weighted average number of common shares outstanding:
Basic	947,565,432		947,303,205		947,513,514		947,321,691
Diluted	987,315,527		955,690,471		947,513,514		995,319,670
Dividends declared per share of common stock	$ 0.30		$ 0.35		$ 0.90		$ 1.20
Net income (loss)	354,856		192,458		(184,007)		2,700,949
Other comprehensive income (loss):
Unrealized gains (losses) on available-for-sale securities	(390,871)		(121,942)		1,872,427		(4,133,589)
Reclassification adjustment for net (gains) losses included in net income (loss)	(4,693)		(43,602)		(91,314)		(374,443)
Other comprehensive income (loss)	(395,564)		(165,544)		1,781,113		(4,508,032)
Comprehensive income (loss)	$ (40,708)		$ 26,914		$ 1,597,106		$ (1,807,083)

[1] Interest expense related to the Company's interest rate swaps is recorded in Realized gains (losses) on interest rate swaps.

[2] Interest expense related to the Company's interest rate swaps is recorded in Realized gains (losses) on interest rate swaps on the Consolidated Statements of Comprehensive Income (Loss).