CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands		Total		Total stockholder’s equity	Preferred stock	Common stock	Additional paid-in capital	Accumulated other comprehensive income (loss)	Accumulated deficit		Noncontrolling interests
Beginning of period at Dec. 31, 2021					$ 1,536,569	$ 3,649	$ 20,324,780	$ 958,410	$ (9,653,582)		$ 25,499
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance						3	6,101
Stock-based award activity						1	2,028
Unrealized gains (losses) on available-for-sale securities		$ (3,568,679)						(3,568,679)
Reclassification adjustment for net gains (losses) included in net income (loss)		144,787						144,787
Net income (loss) attributable to Annaly		2,022,255							2,022,255
Dividends declared on preferred stock	[1]								(26,883)
Dividends and dividend equivalents declared on common stock and share-based awards		(322,197)							(322,197)	[1]
Net income (loss) attributable to noncontrolling interests		(1,639)									1,639
Equity contributions from (distributions to) noncontrolling interests											24,390
End of period at Mar. 31, 2022		11,478,770		$ 11,427,242	1,536,569	3,653	20,332,909	(2,465,482)	(7,980,407)		51,528
Beginning of period at Dec. 31, 2022		11,369,426	[2]		1,536,569	4,683	22,981,320	(3,708,896)	(9,543,233)		98,983
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance						253	562,456
Stock-based award activity						3	(685)
Unrealized gains (losses) on available-for-sale securities		675,374						675,374
Reclassification adjustment for net gains (losses) included in net income (loss)		482,908						482,908
Net income (loss) attributable to Annaly		(844,256)							(844,256)
Dividends declared on preferred stock	[1]								(31,875)
Dividends and dividend equivalents declared on common stock and share-based awards		(322,499)							(322,499)	[1]
Net income (loss) attributable to noncontrolling interests		(4,928)									4,928
Equity contributions from (distributions to) noncontrolling interests											13,000
End of period at Mar. 31, 2023		$ 11,909,033		$ 11,792,122	$ 1,536,569	$ 4,939	$ 23,543,091	$ (2,550,614)	$ (10,741,863)		$ 116,911

[1] (1) Refer to the “Capital Stock” Note for dividends per share for each class of shares.

[2] (1)Derived from the audited consolidated financial statements at December 31, 2022.