-Network: (000010 - Document - Document Information)

-Document information {ID1}

Document type {ID2}

Amendment flag {ID3}

Document period end date {ID4}

Amendment description {ID5}

-Network: (000020 - Document - Entity Information)

-Entity [Text Block] {ID6}

-Entities [Table] {ID7}

-Entity Information [Line Items] {ID8}

Entity registrant name {ID9}

Entity central index key {ID10}

Current fiscal year end date {ID11}

Entity well known seasoned issuer {ID12}

Entity voluntary filers {ID13}

Entity current reporting status {ID14}

Entity filer category {ID15}

Entity public float {ID16}

-Entity Listings [Table] {ID17}

-Entity Listings [Line Items] {ID18}

Entity common stock shares outstanding {ID19}

-Network: (000030 - Statement - Consolidated Statements of Financial Condition)

-Statement Of Financial Position [Abstract] {ID20}

-Statement [Table] {ID21}

-Statement [Line Items] {ID22}

-ASSETS {ID23}

Cash and cash equivalents {ID24}

Reverse repurchase agreements with affiliates {ID25}

Mortgage-Backed Securities, at fair value {ID26}

Agency debentures, at fair value {ID27}

Available for sale equity securities, at fair value {ID28}

Receivable for Investment Securities Sold {ID29}

Accrued interest and dividends receivable {ID30}

Receivable from Prime Broker {ID31}

Receivable for advisory and service fees {ID32}

Intangible for customer relationships, net {ID33}

Goodwill {ID34}

Interest rate swaps, at fair value {ID35}

Other assets {ID36}

Total assets {ID37}

-LIABILITIES AND STOCKHOLDERS' EQUITY {ID38}

-Liabilities: {ID39}

Repurchase agreements {ID40}

Payable for Investment Securities purchased {ID41}

Accrued interest payable {ID42}

Dividends payable {ID43}

Accounts payable and other liabilities {ID44}

Interest rate swaps, at fair value {ID45}

Total liabilities {ID46}

6.00% Series B Cumulative Convertible Preferred Stock: 4,600,000 shares authorized 2,604,814 and 3,963,525 shares issued and outstanding respectively {ID47}

Commitments and contingencies (Note 14) {ID48}

-Stockholders' Equity: {ID49}

7.875% Series A Cumulative Redeemable Preferred Stock: 7,412,500 shares authorized, issued and outstanding {ID50}

Common stock: par value $.01 per share; 987,987,500 shares authorized, 544,353,997 and 541,475,366 issued and outstanding, respectively {ID51}

Additional paid-in capital {ID52}

Accumulated other comprehensive income {ID53}

Accumulated deficit {ID54}

Total stockholders' equity {ID55}

Total liabilities, Series B Cumulative Convertible Preferred Stock and stockholders' equity {ID56}

-Network: (000035 - Statement - Consolidated Statements of Financial Condition Parentheticals)

-Statement [Table] {ID57}

-Statement [Line Items] {ID58}

-Stockholders' equity parentheticals: {ID59}

-6.00% Series B Cumulative Convertible Preferred Stock: {ID60}

6.00% Series B Cumulative Convertible Preferred Stock, shares authorized {ID61}

6.00% Series B Cumulative Convertible Preferred Stock, shares issued {ID62}

6.00% Series B Cumulative Convertible Preferred Stock, shares outstanding {ID63}

-7.875% Series A Cumulative Redeemable Preferred Stock: {ID64}

7.875% Series A Cumulative Redeemable Preferred Stock, shares authorized {ID65}

7.875% Series A Cumulative Redeemable Preferred Stock, shares issued {ID66}

7.875% Series A Cumulative Redeemable Preferred Stock, shares outstanding {ID67}

-Common stock: {ID68}

Common Stock, par value per share {ID69}

Common Stock, shares authorized {ID70}

Common Stock, shares issued {ID71}

Common Stock, shares outstanding {ID72}

-Network: (000040 - Statement - Consolidated Statements of Operations and Comprehensive Income)

-Income Statement [Abstract] {ID73}

-Statement [Table] {ID74}

-Statement [Line Items] {ID75}

Interest income {ID76}

Interest expense {ID77}

Net interest income {ID78}

-Other income: {ID79}

Investment advisory and service fees {ID80}

Gain on sale of Investment Securities {ID81}

Income from trading securities {ID82}

Dividend income from available-for-sale equity securities {ID83}

Unrealized gain on interest rate swaps {ID84}

Total other income {ID85}

-Expenses: {ID86}

Distribution fees {ID87}

General and administrative expenses {ID88}

Total expenses {ID89}

Income before income taxes and noncontrolling interest {ID90}

Income taxes {ID91}

Net income {ID92}

Noncontrolling interest {ID93}

Net income attributable to controlling interest {ID94}

Dividends on preferred stock {ID95}

Net income available to common shareholders {ID96}

Net income available per share to common shareholders-basic {ID97}

Net income available per share to common shareholders-diluted {ID98}

Weighted average number of common shares outstanding-basic {ID99}

Weighted average number of common shares outstanding-diluted {ID100}

Net income attributable to controlling interest {ID101}

-Other comprehensive income (loss): {ID102}

Unrealized gain (loss) on available-for-sale securities {ID103}

Unrealized gain (loss) on interest rate swaps {ID104}

Reclassification adjustment for net gains included in net income {ID105}

Other comprehensive income (loss) {ID106}

Comprehensive income attributable to controlling interest {ID107}

-Network: (000050 - Statement - Consolidated Statement of Stockholders' Equity)

-Statement [Table] {ID108}

-Statement, Equity Components [Axis] {ID109}

-Equity Component [Domain] {ID110}

Preferred Stock {ID111}

Common Stock Par Value {ID112}

Additional Paid-In Capital {ID113}

Accumulated Other Comprehensive Income {ID114}

Accumulated Deficit {ID115}

-Statement [Line Items] {ID116}

BALANCE, DECEMBER 31, 2008 {ID117}

Net income attributable to controlling interest {ID118}

Other comprehensive income (loss) {ID119}

Exercise of stock options and stock grants {ID120}

Stock option expense and long-term compensation expense {ID121}

Conversion of Series B Cumulative Convertible Preferred Stock {ID122}

Preferred Series A dividends declared, $0.984376 per share {ID123}

Preferred Series B dividends declared, $0.75 per share {ID124}

Common dividends declared, $1.10 per share {ID125}

BALANCE, JUNE 30, 2009 {ID126}

-Network: (000060 - Statement - Consolidated Statements of Cash Flows)

-Statement Of Cash Flows [Abstract] {ID127}

-Statement [Table] {ID128}

-Statement [Line Items] {ID129}

-Cash and Cash Equivalents, Period Increase (Decrease) [Abstract] {ID130}

-Cash flows from operating activities: {ID131}

Net income {ID132}

-Adjustments to reconcile net income to net cash provided by operating activities: {ID133}

Net income attributable to noncontrolling interest {ID134}

Amortization of Mortgage-Backed Securities premiums and discounts, net {ID135}

Amortization of intangibles {ID136}

Amortization of trading securities premiums and discounts {ID137}

Gain on sale of Investment Securities {ID138}

Stock option and long-term compensation expense {ID139}

Unrealized gain on interest rate swaps {ID140}

Net realized gain on trading investments {ID141}

Unrealized depreciation on trading investments {ID142}

Increase in accrued interest and dividends receivable {ID143}

Decrease in trading sales receivables {ID144}

Decrease in other assets {ID145}

Purchase of trading securities {ID146}

Proceeds from sale of trading securities {ID147}

Purchase of trading securities sold, not yet purchased {ID148}

Proceeds from securities sold, not yet purchased {ID149}

Increase in advisory and service fees receivable {ID150}

Decrease in interest payable {ID151}

Increase (decrease) in accrued expenses and other liabilities {ID152}

Proceeds from repurchase agreements on from broker dealer {ID153}

Payments on repurchase agreements, broker dealer {ID154}

Proceeds from reverse repo from broker dealer {ID155}

Payment on reverse repo from broker dealer {ID156}

Net cash provided by operating activities {ID157}

-Cash flows from investing activities: {ID158}

Purchase of Mortgage-Backed Securities {ID159}

Proceeds from sale of Investment Securities {ID160}

Principal payments of Mortgage-Backed Securities {ID161}

Agency debentures called {ID162}

Purchase of agency debentures {ID163}

Purchase of reverse repurchase agreements {ID164}

Payments on reverse repurchase agreements {ID165}

Purchase of available-for-sale equity securities from affiliate {ID166}

Net cash used in investing activities {ID167}

-Cash flows from financing activities: {ID168}

Proceeds from repurchase agreements {ID169}

Principal payments on repurchase agreements {ID170}

Proceeds from exercise of stock options {ID171}

Proceeds from direct purchase and dividend reinvestment {ID172}

Net proceeds from follow-on offerings {ID173}

Net proceeds from ATM programs {ID174}

Noncontrolling interest {ID175}

Dividends paid {ID176}

Net cash provided by financing activities {ID177}

Net increase in cash and cash equivalents {ID178}

Cash and cash equivalents, beginning of period {ID179}

Cash and cash equivalents, end of period {ID180}

-Supplemental disclosure of cash flow information: {ID181}

Interest paid {ID182}

Taxes paid {ID183}

-Noncash financing activities: {ID184}

Net change in unrealized gain (loss) on available-for-sale securities and interest rate swaps, net of reclassification adjustment {ID185}

Dividends declared, not yet paid {ID186}

-Noncash investing activities: {ID187}

Receivable for Investment Securities Sold {ID188}

Payable for Investment Securities purchased {ID189}

-Network: (000100 - Disclosure - Organization and Significant Accounting Policies)

-Organization and Significant Accounting Policies [Abstract] {ID190}

Organization and Significant Accounting Policies [Text Block] {ID191}

-Network: (000110 - Disclosure - Mortgage-Backed Securities)

-Mortgage-Backed Securities [Abstract] {ID192}

Mortgage-Backed Securities [Text Block] {ID193}

-Network: (000115 - Disclosure - Agency Debentures)

-Agency Debentures [Abstract] {ID194}

Agency Debentures [TextBlock] {ID195}

-Network: (000120 - Disclosure - Available For Sale Equity Securities)

-Available For Sale Equity Securities [Abstract] {ID196}

Available For Sale Equity Securities [Text Block] {ID197}

-Network: (000130 - Disclosure - Reverse Repurchase Agreement)

-Reverse Repurchase Agreement [Abstract] {ID198}

Reverse Repurchase Agreement [Text Block] {ID199}

-Network: (000140 - Disclosure - Receivable From Prime Broker)

-Receivable From Prime Broker [Abstract] {ID200}

Receivable From Prime Broker [Text Block] {ID201}

-Network: (000150 - Disclosure - Fair Value Measurements)

-Fair Value Measurements [Abstract] {ID202}

Fair Value Measurements [Text Block] {ID203}

-Network: (000160 - Disclosure - Repurchase Agreements)

-Repurchase Agreements [Abstract] {ID204}

Repurchase Agreements [Text Block] {ID205}

-Network: (000170 - Disclosure - Interest Rate Swaps)

-Interest Rate Swaps [Abstract] {ID206}

Interest Rate Swaps [Text Block] {ID207}

-Network: (000180 - Disclosure - Preferred Stock And Common Stock)

-Preferred Stock And Common Stock [Abstract] {ID208}

Preferred Stock And Common Stock [Text Block] {ID209}

-Network: (000190 - Disclosure - Net Income Per Common Share)

-Net Income Per Common Share [Abstract] {ID210}

Net Income Per Common Share [Text Block] {ID211}

-Network: (000200 - Disclosure - Long-Term Stock Incentive Plan)

-Long-Term Stock Incentive Plan [Abstract] {ID212}

Long-Term Stock Incentive Plan [Text Block] {ID213}

-Network: (000210 - Disclosure - Income Taxes)

-Income Taxes [Abstract] {ID214}

Income Taxes [Text Block] {ID215}

-Network: (000220 - Disclosure - Lease Commitments And Contingencies)

-Lease Commitments And Contingencies [Abstract] {ID216}

Lease Commitments And Contingencies [Text Block] {ID217}

-Network: (000230 - Disclosure - Interest Rate Risk)

-Interest Rate Risk [Abstract] {ID218}

Interest Rate Risk [Text Block] {ID219}

-Network: (000240 - Disclosure - Related Party Transactions)

-Related Party Transactions [Abstract] {ID220}

Related Party Transactions [Text Block] {ID221}

-Network: (000250 - Disclosure - Subsequent Events)

-Subsequent Events [Abstract] {ID222}

Subsequent Events [Text Block] {ID223}

Annaly Capital Management, Inc. XBRL Taxonomy Presentation Networks