CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Net interest income
Interest income	$ 1,418,893	$ 1,177,325	$ 2,736,001	$ 2,271,813
Interest expense	1,145,693	1,123,767	2,242,830	2,224,706
Net interest income	273,200	53,558	493,171	47,107
Net servicing income
Servicing and related income	141,670	120,515	282,105	235,599
Servicing and related expense	14,571	12,617	28,684	24,833
Net servicing income	127,099	107,898	253,421	210,766
Other income (loss)
Net gains (losses) on investments and other	83,503	(568,745)	894,315	(1,562,872)
Net gains (losses) on derivatives	(388,785)	430,487	(1,366,652)	1,807,631
Other, net	15,812	24,791	23,210	48,158
Total other income (loss)	(289,470)	(113,467)	(449,127)	292,917
General and administrative expenses
Compensation expense	36,583	33,274	73,880	61,995
Other general and administrative expenses	13,435	11,617	24,202	21,466
Total general and administrative expenses	50,018	44,891	98,082	83,461
Income (loss) before income taxes	60,811	3,098	199,383	467,329
Income taxes	440	11,931	8,707	10,988
Net income (loss)	60,371	(8,833)	190,676	456,341
Net income (loss) attributable to noncontrolling interests	3,272	650	9,353	2,932
Net income (loss) attributable to Annaly	57,099	(9,483)	181,323	453,409
Dividends on preferred stock	37,260	37,158	74,417	74,219
Net income (loss) available (related) to common stockholders	$ 19,839	$ (46,641)	$ 106,906	$ 379,190
Net income (loss) per share available (related) to common stockholders
Basic (in dollars per share)	$ 0.03	$ (0.09)	$ 0.18	$ 0.76
Diluted (in dollars per share)	$ 0.03	$ (0.09)	$ 0.18	$ 0.76
Weighted average number of common shares outstanding
Basic (in shares)	620,208,712	500,950,563	603,770,531	500,781,701
Diluted (in shares)	621,103,218	500,950,563	604,882,295	501,415,515
Other comprehensive income (loss)
Net income (loss)	$ 60,371	$ (8,833)	$ 190,676	$ 456,341
Unrealized gains (losses) on available-for-sale securities	33,559	(54,243)	198,436	(336,112)
Reclassification adjustment for net (gains) losses included in net income (loss)	13,797	179,234	79,200	514,585
Other comprehensive income (loss)	47,356	124,991	277,636	178,473
Comprehensive income (loss)	107,727	116,158	468,312	634,814
Comprehensive income (loss) attributable to noncontrolling interests	3,272	650	9,353	2,932
Comprehensive income (loss) attributable to Annaly	104,455	115,508	458,959	631,882
Dividends on preferred stock	37,260	37,158	74,417	74,219
Comprehensive income (loss) attributable to common stockholders	$ 67,195	$ 78,350	$ 384,542	$ 557,663