CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net interest income
Interest income	$ 1,229,341	$ 1,001,485	$ 3,501,154	$ 2,741,229
Interest expense	1,215,940	1,046,819	3,440,646	2,799,063
Net interest income	13,401	(45,334)	60,508	(57,834)
Net servicing income
Servicing and related income	122,583	97,620	358,182	265,683
Servicing and related expense	12,988	9,623	37,821	26,433
Net servicing income	109,595	87,997	320,361	239,250
Other income (loss)
Net gains (losses) on investments and other	1,723,713	(2,713,126)	160,841	(4,020,362)
Net gains (losses) on derivatives	(1,754,010)	2,127,430	53,621	2,702,003
Loan loss (provision) reversal	0	0	0	219
Other, net	27,438	26,250	75,596	50,853
Total other income (loss)	(2,859)	(559,446)	290,058	(1,267,287)
General and administrative expenses
Compensation expense	34,453	30,064	96,448	90,090
Other general and administrative expenses	9,468	9,845	30,934	33,562
Total general and administrative expenses	43,921	39,909	127,382	123,652
Income (loss) before income taxes	76,216	(556,692)	543,545	(1,209,523)
Income taxes	(6,135)	12,392	4,853	37,702
Net income (loss)	82,351	(569,084)	538,692	(1,247,225)
Net income (loss) attributable to noncontrolling interests	15,906	(6,879)	18,838	(7,797)
Net income (loss) attributable to Annaly	66,445	(562,205)	519,854	(1,239,428)
Dividends on preferred stock	41,628	36,854	115,847	104,495
Net income (loss) available (related) to common stockholders	$ 24,817	$ (599,059)	$ 404,007	$ (1,343,923)
Net income (loss) per share available (related) to common stockholders
Basic (in dollars per share)	$ 0.05	$ (1.21)	$ 0.80	$ (2.73)
Diluted (in dollars per share)	$ 0.05	$ (1.21)	$ 0.80	$ (2.73)
Weighted average number of common shares outstanding
Basic (in shares)	515,729,658	494,330,361	505,800,723	492,744,997
Diluted (in shares)	516,832,152	494,330,361	506,618,143	492,744,997
Other comprehensive income (loss)
Net income (loss)	$ 82,351	$ (569,084)	$ 538,692	$ (1,247,225)
Unrealized gains (losses) on available-for-sale securities	428,955	(825,286)	92,843	(443,957)
Reclassification adjustment for net (gains) losses included in net income (loss)	15,769	513,041	530,354	1,458,077
Other comprehensive income (loss)	444,724	(312,245)	623,197	1,014,120
Comprehensive income (loss)	527,075	(881,329)	1,161,889	(233,105)
Comprehensive income (loss) attributable to noncontrolling interests	15,906	(6,879)	18,838	(7,797)
Comprehensive income (loss) attributable to Annaly	511,169	(874,450)	1,143,051	(225,308)
Dividends on preferred stock	41,628	36,854	115,847	104,495
Comprehensive income (loss) attributable to common stockholders	$ 469,541	$ (911,304)	$ 1,027,204	$ (329,803)