CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total		Common stock par value	Additional paid-in capital	Accumulated other comprehensive income (loss)	Accumulated deficit	Total stockholders' equity	Noncontrolling interest	7.875% Series A Cumulative Redeemable Preferred Stock	7.875% Series A Cumulative Redeemable Preferred Stock Preferred Stock	7.875% Series A Cumulative Redeemable Preferred Stock Accumulated deficit	7.875% Series A Cumulative Redeemable Preferred Stock Total stockholders' equity	7.625% Series C Cumulative Redeemable Preferred Stock		7.625% Series C Cumulative Redeemable Preferred Stock Preferred Stock	7.625% Series C Cumulative Redeemable Preferred Stock Accumulated deficit		7.625% Series C Cumulative Redeemable Preferred Stock Total stockholders' equity		7.50% Series D Cumulative Redeemable Preferred Stock	7.50% Series D Cumulative Redeemable Preferred Stock Preferred Stock	7.50% Series D Cumulative Redeemable Preferred Stock Accumulated deficit	7.50% Series D Cumulative Redeemable Preferred Stock Total stockholders' equity	7.625% Series E Cumulative Redeemable Preferred Stock	7.625% Series E Cumulative Redeemable Preferred Stock Preferred Stock	7.625% Series E Cumulative Redeemable Preferred Stock Accumulated deficit	7.625% Series E Cumulative Redeemable Preferred Stock Total stockholders' equity	6.95% Series F Cumulative Redeemable Preferred Stock	6.95% Series F Cumulative Redeemable Preferred Stock Preferred Stock	6.95% Series F Cumulative Redeemable Preferred Stock Accumulated deficit	6.95% Series F Cumulative Redeemable Preferred Stock Total stockholders' equity	6.50% Series G Cumulative Redeemable Preferred Stock	6.50% Series G Cumulative Redeemable Preferred Stock Preferred Stock	6.50% Series G Cumulative Redeemable Preferred Stock Accumulated deficit	6.50% Series G Cumulative Redeemable Preferred Stock Total stockholders' equity
Beginning balance at Dec. 31, 2016	$ 12,575,972		$ 10,189	$ 15,579,342	$ (1,085,893)	$ (3,136,017)	$ 12,568,180	$ 7,792		$ 177,088					$ 290,514						$ 445,457				$ 287,500				$ 0				$ 0
Net income (loss) attributable to Annaly	440,511					440,511	440,511
Net income (loss) attributable to noncontrolling interest	(103)							(103)
Unrealized gains (losses) on available-for-sale securities	(59,615)				(59,615)		(59,615)
Reclassification adjustment for net (gains) losses included in net income (loss)	19,417				19,417		19,417
Stock compensation expense	101			101			101
Net proceeds from direct purchase and dividend reinvestment	596		1	595			596
Equity contributions from (distributions to) noncontrolling interest	(366)							(366)
Preferred dividends declared									$ (3,648)		$ (3,648)	$ (3,648)	$ (5,719)			$ (5,719)		$ (5,719)		$ (8,625)		$ (8,625)	$ (8,625)	$ (5,481)		$ (5,481)	$ (5,481)	$ 0				$ 0
Common dividends declared, $0.90 per share	(305,691)					(305,691)	(305,691)
Ending balance at Mar. 31, 2017	12,647,349		10,190	15,580,038	(1,126,091)	(3,024,670)	12,640,026	7,323		177,088					290,514						445,457				287,500				0				0
Beginning balance at Dec. 31, 2017	14,871,573	[1]	11,596	17,221,265	(1,126,020)	(2,961,749)	14,865,473	6,100		0					290,514						445,457				287,500				696,910				0
Net income (loss) attributable to Annaly	1,327,800					1,327,800	1,327,800
Net income (loss) attributable to noncontrolling interest	(96)							(96)
Unrealized gains (losses) on available-for-sale securities	(1,879,479)				(1,879,479)		(1,879,479)
Reclassification adjustment for net (gains) losses included in net income (loss)	5,419				5,419		5,419
Stock compensation expense	133			133			133
Redemption of Preferred Stock	(412,500)			(3,952)			(412,500)						(125,000)		(121,048)									(287,500)	(287,500)
Net proceeds from direct purchase and dividend reinvestment	746		1	745			746
Net proceeds from issuance of stock	411,335						411,335																										411,335
Equity contributions from (distributions to) noncontrolling interest	(333)							(333)
Preferred dividends declared									$ 0				$ (4,316)	[2]		$ (4,316)	[2]	$ (4,316)	[2]	$ (8,625)		$ (8,625)	$ (8,625)	$ (2,253)		$ (2,253)	$ (2,253)	$ (12,510)		$ (12,510)	$ (12,510)	$ (6,062)		$ (6,062)	$ (6,062)
Common dividends declared, $0.90 per share	(347,897)					(347,897)	(347,897)
Ending balance at Mar. 31, 2018	$ 13,942,935		$ 11,597	$ 17,218,191	$ (3,000,080)	$ (2,015,612)	$ 13,937,264	$ 5,671		$ 0					$ 169,466						$ 445,457				$ 0				$ 696,910				$ 411,335

[1] Derived from the audited consolidated financial statements at December 31, 2017.

[2] Represents dividends declared per share for shares outstanding at March 31, 2018.