CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Net interest income:
Interest income	$ 519,172		$ 655,901
Interest expense	129,420		124,971
Net interest income	389,752		530,930
Other income (loss):
Realized gains (losses) on interest rate swaps	(158,239)	[1],[2]	(260,435)	[1],[2]
Realized gains (losses) on termination of interest rate swaps	(226,462)		(6,842)
Unrealized gains (losses) on interest rate swaps	(466,202)		(348,942)
Subtotal	(850,903)		(616,219)
Investment advisory income	10,464		6,123
Net gains (losses) on disposal of investments	62,356		79,710
Dividend income from affiliates	4,318		13,045
Net gains (losses) on trading assets	(6,906)		(146,228)
Net unrealized gains (losses) on interest-only Agency mortgage-backed securities	(33,546)		(20,793)
Other income (loss)	(1,082)		1,460
Subtotal	35,604		(66,683)
Total other income (loss)	(815,299)		(682,902)
General and administrative expenses:
Compensation and management fee	38,629		38,521
Other general and administrative expenses	12,309		8,857
Total general and administrative expenses	50,938		47,378
Income (loss) before income taxes	(476,485)		(199,350)
Income taxes	14		4,001
Net Income	(476,499)		(203,351)
Net income (loss) attributable to noncontrolling interest	(90)
Net income (loss) attributable to Annaly	(476,409)		(203,351)
Dividends on preferred stock	17,992		17,992
Net income (loss) available (related) to common stockholders	(494,401)		(221,343)
Net income (loss) per share available (related) to common stockholders:
Basic	$ (0.52)		$ (0.23)
Diluted	$ (0.52)		$ (0.23)
Weighted average number of common shares outstanding:
Basic	947,669,831		947,458,813
Diluted	947,669,831		947,458,813
Dividends Declared Per Share of Common Stock	$ 0.30		$ 0.30
Net income (loss)	(476,499)		(203,351)
Other comprehensive income (loss):
Unrealized gains (losses) on available-for-sale securities	631,472		741,172
Reclassification adjustment for net (gains) losses included in net income (loss)	(62,356)		(80,718)
Other comprehensive income (loss)	569,116		660,454
Comprehensive income (loss)	92,617		457,103
Comprehensive income (loss) attributable to noncontrolling interest	(90)
Comprehensive income (loss) attributable to Annaly	$ 92,707		$ 457,103

[1] 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).

[2] Consists of interest expense on interest rate swaps.