    <SEC-DOCUMENT>0001104659-24-101769-index.html : 20240923
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    <ACCEPTANCE-DATETIME>20240920181106
    ACCESSION NUMBER:		0001104659-24-101769
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		27
    CONFORMED PERIOD OF REPORT:	20240920
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20240923
    DATE AS OF CHANGE:		20240920

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ANNALY CAPITAL MANAGEMENT INC
    		CENTRAL INDEX KEY:			0001043219
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		ORGANIZATION NAME:           	05 Real Estate & Construction
    		IRS NUMBER:				223479661
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-13447
    		FILM NUMBER:		241314316

    	BUSINESS ADDRESS:
    		STREET 1:		1211 AVENUE OF THE AMERICAS
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10036
    		BUSINESS PHONE:		212 696 0100

    	MAIL ADDRESS:
    		STREET 1:		1211 AVENUE OF THE AMERICAS
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10036

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	ANNALY MORTGAGE MANAGEMENT INC
    		DATE OF NAME CHANGE:	19970729
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    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>tm2424442d4_8k.htm
    <DESCRIPTION>FORM 8-K
    <TEXT>
    Document 1 - file: tm2424442d4_8k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-1.1
    <SEQUENCE>2
    <FILENAME>tm2424442d4_ex1-1.htm
    <DESCRIPTION>EXHIBIT 1.1
    <TEXT>
    Document 2 - file: tm2424442d4_ex1-1.htm

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    <DOCUMENT>
    <TYPE>EX-1.2
    <SEQUENCE>3
    <FILENAME>tm2424442d4_ex1-2.htm
    <DESCRIPTION>EXHIBIT 1.2
    <TEXT>
    Document 3 - file: tm2424442d4_ex1-2.htm

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    <TYPE>EX-1.3
    <SEQUENCE>4
    <FILENAME>tm2424442d4_ex1-3.htm
    <DESCRIPTION>EXHIBIT 1.3
    <TEXT>
    Document 4 - file: tm2424442d4_ex1-3.htm

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    <TYPE>EX-1.4
    <SEQUENCE>5
    <FILENAME>tm2424442d4_ex1-4.htm
    <DESCRIPTION>EXHIBIT 1.4
    <TEXT>
    Document 5 - file: tm2424442d4_ex1-4.htm

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    <TYPE>EX-1.5
    <SEQUENCE>6
    <FILENAME>tm2424442d4_ex1-5.htm
    <DESCRIPTION>EXHIBIT 1.5
    <TEXT>
    Document 6 - file: tm2424442d4_ex1-5.htm

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    <TYPE>EX-1.6
    <SEQUENCE>7
    <FILENAME>tm2424442d4_ex1-6.htm
    <DESCRIPTION>EXHIBIT 1.6
    <TEXT>
    Document 7 - file: tm2424442d4_ex1-6.htm

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    <TYPE>EX-1.7
    <SEQUENCE>8
    <FILENAME>tm2424442d4_ex1-7.htm
    <DESCRIPTION>EXHIBIT 1.7
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    <TYPE>EX-1.8
    <SEQUENCE>9
    <FILENAME>tm2424442d4_ex1-8.htm
    <DESCRIPTION>EXHIBIT 1.8
    <TEXT>
    Document 9 - file: tm2424442d4_ex1-8.htm

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    <TYPE>EX-1.9
    <SEQUENCE>10
    <FILENAME>tm2424442d4_ex1-9.htm
    <DESCRIPTION>EXHIBIT 1.9
    <TEXT>
    Document 10 - file: tm2424442d4_ex1-9.htm

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    <DOCUMENT>
    <TYPE>EX-1.10
    <SEQUENCE>11
    <FILENAME>tm2424442d4_ex1-10.htm
    <DESCRIPTION>EXHIBIT 1.10
    <TEXT>
    Document 11 - file: tm2424442d4_ex1-10.htm

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    <TYPE>EX-1.11
    <SEQUENCE>12
    <FILENAME>tm2424442d4_ex1-11.htm
    <DESCRIPTION>EXHIBIT 1.11
    <TEXT>
    Document 12 - file: tm2424442d4_ex1-11.htm

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    <TYPE>EX-5.1
    <SEQUENCE>13
    <FILENAME>tm2424442d4_ex5-1.htm
    <DESCRIPTION>EXHIBIT 5.1
    <TEXT>
    Document 13 - file: tm2424442d4_ex5-1.htm

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    <TYPE>EX-101.SCH
    <SEQUENCE>14
    <FILENAME>nly-20240920.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
    Document 14 - file: nly-20240920.xsd

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    <SEQUENCE>15
    <FILENAME>nly-20240920_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
    <TEXT>
    Document 15 - file: nly-20240920_def.xml

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    <SEQUENCE>16
    <FILENAME>nly-20240920_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
    <TEXT>
    Document 16 - file: nly-20240920_lab.xml

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    <TYPE>EX-101.PRE
    <SEQUENCE>17
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    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
    <TEXT>
    Document 17 - file: nly-20240920_pre.xml

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    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>tm2424442d4_ex5-1img001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: tm2424442d4_ex5-1img001.jpg

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    <TYPE>XML
    <SEQUENCE>20
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 20 - file: R1.htm

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    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>21
    <FILENAME>Financial_Report.xlsx
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    <TEXT>
    Document 21 - file: Financial_Report.xlsx

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    <SEQUENCE>22
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    <TEXT>
    Document 22 - file: Show.js

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    <SEQUENCE>23
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    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 23 - file: report.css

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    <TYPE>XML
    <SEQUENCE>25
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 25 - file: FilingSummary.html

    Document 25 - RAW XML: FilingSummary.xml

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    <TYPE>JSON
    <SEQUENCE>27
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    <TEXT>
    Document 27 - file: MetaLinks.json

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    <SEQUENCE>28
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    Document 28 - file: 0001104659-24-101769-xbrl.zip

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