ANNALY CAPITAL MANAGEMENT INC Presentation Networks

Line Image Concept Label Concept Type Period type Balance Concept name
* Network: (000010 - Document - Document Information)
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2 dei: Document type us-types:SECReportItemType duration dei:DocumentType
3 dei: Amendment flag xbrli:booleanItemType duration dei:AmendmentFlag
4 dei: Document period end date xbrli:dateItemType duration dei:DocumentPeriodEndDate
5 dei: Amendment description xbrli:stringItemType duration dei:AmendmentDescription
* Network: (000020 - Document - Entity Information)
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7 dei: Entities [Table] xbrli:stringItemType duration dei:EntitiesTable
8 dei: Entity Information [Line Items] xbrli:stringItemType duration dei:EntityInformationLineItems
9 dei: Entity registrant name xbrli:normalizedStringItemType duration dei:EntityRegistrantName
10 dei: Entity central index key us-types:centralIndexKeyItemType duration dei:EntityCentralIndexKey
11 dei: Current fiscal year end date xbrli:gMonthDayItemType duration dei:CurrentFiscalYearEndDate
12 dei: Entity well known seasoned issuer us-types:yesNoItemType duration dei:EntityWellKnownSeasonedIssuer
13 dei: Entity voluntary filers us-types:yesNoItemType duration dei:EntityVoluntaryFilers
14 dei: Entity current reporting status us-types:yesNoItemType duration dei:EntityCurrentReportingStatus
15 dei: Entity filer category us-types:filerCategoryItemType duration dei:EntityFilerCategory
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17 dei: Entity Listings [Table] xbrli:stringItemType duration dei:EntityListingsTable
18 dei: Entity Listings [Line Items] xbrli:stringItemType duration dei:EntityListingsLineItems
19 dei: Entity common stock shares outstanding xbrli:sharesItemType instant dei:EntityCommonStockSharesOutstanding
* Network: (000030 - Statement - Consolidated Statements of Financial Condition)
20 us-gaap: Statement Of Financial Position [Abstract] xbrli:stringItemType duration us-gaap:StatementOfFinancialPositionAbstract
21 us-gaap: Statement [Table] xbrli:stringItemType duration us-gaap:StatementTable
22 us-gaap: Class of Stock [Axis] xbrli:stringItemType duration us-gaap:StatementClassOfStockAxis
23 us-gaap: Class of Stock [Domain] us-types:domainItemType duration us-gaap:ClassOfStockDomain
24 nly: Series B Cumulative Convertible Redeemable Preferred Stock Member us-types:domainItemType duration nly:SeriesBCumulativeConvertibleRedeemablePreferredStockMember
25 nly: Series A Cumulative Redeemable Preferred Stock Member us-types:domainItemType duration nly:SeriesACumulativeRedeemablePreferredStockMember
26 us-gaap: Common Stock us-types:domainItemType duration us-gaap:CommonStockMember
27 us-gaap: Statement [Line Items] xbrli:stringItemType duration us-gaap:StatementLineItems
28 us-gaap: ASSETS xbrli:stringItemType duration us-gaap:AssetsAbstract
29 us-gaap: Cash and cash equivalents xbrli:monetaryItemType instant debit us-gaap:CashAndCashEquivalentsAtCarryingValue
30 nly: Reverse repurchase agreements with affiliates xbrli:monetaryItemType instant debit nly:ReverseRepurchaseAgreementsWithAffiliate
31 us-gaap: Reverse repurchase agreements xbrli:monetaryItemType instant debit us-gaap:SecuritiesForReverseRepurchaseAgreements
32 us-gaap: Mortgage-Backed Securities, at fair value xbrli:monetaryItemType instant debit us-gaap:FinancialInstrumentsOwnedMortgagesMortgageBackedAndAssetBackedSecuritiesAtFairValue
33 us-gaap: Agency debentures, at fair value xbrli:monetaryItemType instant debit us-gaap:FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
34 us-gaap: Available for sale equity securities, at fair value xbrli:monetaryItemType instant debit us-gaap:AvailableForSaleSecuritiesEquitySecurities
35 us-gaap: Investment in affiliate, equity method xbrli:monetaryItemType instant debit us-gaap:EquityMethodInvestments
36 nly: Receivable for Mortage-Backed Securities sold xbrli:monetaryItemType instant debit nly:ReceivableForMortageBackedSecuritiesSold
37 us-gaap: Accrued interest and dividends receivable xbrli:monetaryItemType instant debit us-gaap:AccruedInvestmentIncomeReceivable
38 us-gaap: Receivable from Prime Broker xbrli:monetaryItemType instant debit us-gaap:ReceivablesFromBrokersDealersAndClearingOrganizations
39 us-gaap: Receivable for advisory and service fees xbrli:monetaryItemType instant debit us-gaap:AccruedFeesAndOtherRevenueReceivable
40 us-gaap: Intangible for customer relationships, net xbrli:monetaryItemType instant debit us-gaap:FiniteLivedIntangibleAssetsNet
41 us-gaap: Goodwill xbrli:monetaryItemType instant debit us-gaap:Goodwill
42 us-gaap: Other assets xbrli:monetaryItemType instant debit us-gaap:OtherAssets
43 us-gaap: Total assets xbrli:monetaryItemType instant debit us-gaap:Assets
44 us-gaap: LIABILITIES AND STOCKHOLDERS' EQUITY xbrli:stringItemType duration us-gaap:LiabilitiesAndStockholdersEquityAbstract
45 us-gaap: Liabilities: xbrli:stringItemType duration us-gaap:LiabilitiesAbstract
46 us-gaap: Repurchase agreements xbrli:monetaryItemType instant credit us-gaap:SecuritiesSoldUnderAgreementsToRepurchase
47 nly: Payable for Investment Securities purchased xbrli:monetaryItemType instant credit nly:PayableForInvestmentSecuritiesPurchased
48 us-gaap: Accrued interest payable xbrli:monetaryItemType instant credit us-gaap:InterestPayableCurrentAndNoncurrent
49 us-gaap: Dividends payable xbrli:monetaryItemType instant credit us-gaap:DividendsPayableCurrentAndNoncurrent
50 us-gaap: Accounts payable and other liabilities xbrli:monetaryItemType instant credit us-gaap:AccountsPayableCurrentAndNoncurrent
51 us-gaap: Interest rate swaps, at fair value xbrli:monetaryItemType instant credit us-gaap:DerivativeLiabilities
52 us-gaap: Total liabilities xbrli:monetaryItemType instant credit us-gaap:Liabilities
53 us-gaap: Commitments and contingencies (Note 15) xbrli:monetaryItemType instant credit us-gaap:CommitmentsAndContingencies
54 us-gaap: 6.00% Series B Cumulative Convertible Preferred Stock: 4,600,000 shares authorized 2,604,614 and 3,963,525 shares issued and outstanding, respectively xbrli:monetaryItemType instant credit us-gaap:TemporaryEquityCarryingAmount
55 us-gaap: Stockholders' Equity: xbrli:stringItemType duration us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract
56 us-gaap: 7.875% Series A Cumulative Redeemable Preferred Stock: 7,412,500 shares authorized, issued and outstanding xbrli:monetaryItemType instant credit us-gaap:PreferredStockValue
57 us-gaap: Common stock: par value $.01 per share; 987,987,500 shares authorized, 552,778,531 and 541,475,366 issued and outstanding, respectively xbrli:monetaryItemType instant credit us-gaap:CommonStockValue
58 us-gaap: Additional paid-in capital xbrli:monetaryItemType instant credit us-gaap:AdditionalPaidInCapital
59 us-gaap: Accumulated other comprehensive income xbrli:monetaryItemType instant credit us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
60 us-gaap: Accumulated deficit xbrli:monetaryItemType instant credit us-gaap:RetainedEarningsAccumulatedDeficit
61 us-gaap: Total stockholders' equity xbrli:monetaryItemType instant credit us-gaap:StockholdersEquity
62 us-gaap: Total liabilities, Series B Cumulative Convertible Preferred Stock and stockholders' equity xbrli:monetaryItemType instant credit us-gaap:LiabilitiesAndStockholdersEquity
* Network: (000035 - Statement - Consolidated Statements of Financial Condition Parentheticals)
63 us-gaap: Statement Of Financial Position [Abstract] xbrli:stringItemType duration us-gaap:StatementOfFinancialPositionAbstract
64 nly: Statement of Financial Position Parentheticals [Abstract] xbrli:stringItemType duration nly:StatementOfFinancialPositionParentheticalsAbstract
65 us-gaap: Statement [Table] xbrli:stringItemType duration us-gaap:StatementTable
66 us-gaap: Class of Stock [Axis] xbrli:stringItemType duration us-gaap:StatementClassOfStockAxis
67 us-gaap: Class of Stock [Domain] us-types:domainItemType duration us-gaap:ClassOfStockDomain
68 nly: Series B Cumulative Convertible Redeemable Preferred Stock Member us-types:domainItemType duration nly:SeriesBCumulativeConvertibleRedeemablePreferredStockMember
69 nly: Series A Cumulative Redeemable Preferred Stock Member us-types:domainItemType duration nly:SeriesACumulativeRedeemablePreferredStockMember
70 us-gaap: Common Stock us-types:domainItemType duration us-gaap:CommonStockMember
71 us-gaap: Statement [Line Items] xbrli:stringItemType duration us-gaap:StatementLineItems
72 us-gaap: LIABILITIES AND STOCKHOLDERS' EQUITY xbrli:stringItemType duration us-gaap:LiabilitiesAndStockholdersEquityAbstract
73 us-gaap: Stockholders' equity parentheticals: xbrli:stringItemType duration us-gaap:StockholdersEquityNumberOfSharesParValueAndOtherDisclosuresAbstract
74 us-gaap: Preferred Stock: xbrli:stringItemType duration us-gaap:PreferredStockNumberOfSharesParValueAndOtherDisclosuresAbstract
75 us-gaap: Preferred Stock, shares authorized xbrli:sharesItemType instant us-gaap:PreferredStockSharesAuthorized
76 us-gaap: Preferred Stock, shares issued xbrli:sharesItemType instant us-gaap:PreferredStockSharesIssued
77 us-gaap: Preferred Stock, shares outstanding xbrli:sharesItemType instant us-gaap:PreferredStockSharesOutstanding
78 us-gaap: Common stock: xbrli:stringItemType duration us-gaap:CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract
79 us-gaap: Common Stock, par value per share us-types:perShareItemType instant us-gaap:CommonStockParOrStatedValuePerShare
80 us-gaap: Common Stock, shares authorized xbrli:sharesItemType instant us-gaap:CommonStockSharesAuthorized
81 us-gaap: Common Stock, shares issued xbrli:sharesItemType instant us-gaap:CommonStockSharesIssued
82 us-gaap: Common Stock, shares outstanding xbrli:sharesItemType instant us-gaap:CommonStockSharesOutstanding
* Network: (000040 - Statement - Consolidated Statements of Operations and Comprehensive Income (Unaudited))
83 us-gaap: Income Statement [Abstract] xbrli:stringItemType duration us-gaap:IncomeStatementAbstract
84 us-gaap: Statement [Table] xbrli:stringItemType duration us-gaap:StatementTable
85 us-gaap: Class of Stock [Axis] xbrli:stringItemType duration us-gaap:StatementClassOfStockAxis
86 us-gaap: Class of Stock [Domain] us-types:domainItemType duration us-gaap:ClassOfStockDomain
87 nly: Series B Cumulative Convertible Redeemable Preferred Stock Member us-types:domainItemType duration nly:SeriesBCumulativeConvertibleRedeemablePreferredStockMember
88 nly: Series A Cumulative Redeemable Preferred Stock Member us-types:domainItemType duration nly:SeriesACumulativeRedeemablePreferredStockMember
89 us-gaap: Common Stock us-types:domainItemType duration us-gaap:CommonStockMember
90 us-gaap: Statement [Line Items] xbrli:stringItemType duration us-gaap:StatementLineItems
91 us-gaap: Interest income xbrli:monetaryItemType duration credit us-gaap:InterestIncomeOperating
92 us-gaap: Interest expense xbrli:monetaryItemType duration debit us-gaap:InterestExpense
93 us-gaap: Net interest income xbrli:monetaryItemType duration credit us-gaap:InterestIncomeExpenseNet
94 nly: Other income: xbrli:stringItemType duration nly:OtherIncomeAbstract
95 us-gaap: Investment advisory and service fees xbrli:monetaryItemType duration credit us-gaap:InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions
96 us-gaap: Gain (loss) on sale of Investment Securities xbrli:monetaryItemType duration credit us-gaap:GainsLossesOnSalesOfAssets
97 us-gaap: Income from trading securities xbrli:monetaryItemType duration credit us-gaap:InterestAndDividendIncomeSecuritiesTradingOrMeasuredAtFairValue
98 nly: Dividend income from available-for-sale equity Securities xbrli:monetaryItemType duration credit nly:DividendIncomeFromAvailableForSaleEquitySecurities
99 us-gaap: Unrealized (loss) gain on interest rate swaps xbrli:monetaryItemType duration credit us-gaap:UnrealizedGainLossOnDerivatives
100 nly: Loss on other-than-temporarily impaired securities xbrli:monetaryItemType duration credit nly:OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities
101 us-gaap: Total other (loss) income xbrli:monetaryItemType duration credit us-gaap:NonoperatingIncomeExpense
102 nly: Expenses: xbrli:stringItemType duration nly:Expenses
103 us-gaap: Distribution fees xbrli:monetaryItemType duration debit us-gaap:ExpenseRelatedToDistributionOrServicingAndUnderwritingFees
104 us-gaap: General and administrative expenses xbrli:monetaryItemType duration debit us-gaap:GeneralAndAdministrativeExpense
105 us-gaap: Total expenses xbrli:monetaryItemType duration debit us-gaap:NoninterestExpense
106 us-gaap: Income before income taxes and noncontrolling interest xbrli:monetaryItemType duration credit us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
107 us-gaap: Income taxes xbrli:monetaryItemType duration debit us-gaap:IncomeTaxExpenseBenefit
108 us-gaap: Net income xbrli:monetaryItemType duration credit us-gaap:ProfitLoss
109 us-gaap: Noncontrolling interest xbrli:monetaryItemType duration debit us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
110 us-gaap: Net income attributable to controlling interest xbrli:monetaryItemType duration credit us-gaap:NetIncomeLoss
111 us-gaap: Dividends on preferred stock xbrli:monetaryItemType duration debit us-gaap:PreferredStockDividendsAndOtherAdjustments
112 us-gaap: Net income available to common shareholders xbrli:monetaryItemType duration credit us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic
113 us-gaap: Net income available per share to common shareholders-basic us-types:perShareItemType duration us-gaap:EarningsPerShareBasic
114 us-gaap: Net income available per share to common shareholders-diluted us-types:perShareItemType duration us-gaap:EarningsPerShareDiluted
115 us-gaap: Weighted average number of common shares outstanding-basic xbrli:sharesItemType duration us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
116 us-gaap: Weighted average number of common shares outstanding - diluted xbrli:sharesItemType duration us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
117 us-gaap: Net income attributable to controlling interest xbrli:monetaryItemType duration credit us-gaap:NetIncomeLoss
118 us-gaap: Other comprehensive income (loss): xbrli:stringItemType duration us-gaap:OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract
119 us-gaap: Unrealized gain (loss) on available-for-sale securities xbrli:monetaryItemType duration us-gaap:OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecrease
120 us-gaap: Unrealized gain on interest rate swaps xbrli:monetaryItemType duration credit us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
121 us-gaap: Reclassification adjustment for net gains (losses) included in net income xbrli:monetaryItemType duration debit us-gaap:OtherComprehensiveIncomeReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax
122 us-gaap: Other comprehensive income (loss) xbrli:monetaryItemType duration us-gaap:OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease
123 us-gaap: Comprehensive income attributable to controlling interest xbrli:monetaryItemType duration credit us-gaap:ComprehensiveIncomeNetOfTax
* Network: (000050 - Statement - Consolidated Statement of Stockholders' Equity (Unaudited))
124 us-gaap: Statement of Stockholders' Equity [Abstract] xbrli:stringItemType duration us-gaap:StatementOfStockholdersEquityAbstract
125 us-gaap: Statement [Table] xbrli:stringItemType duration us-gaap:StatementTable
126 us-gaap: Statement, Equity Components [Axis] xbrli:stringItemType duration us-gaap:StatementEquityComponentsAxis
127 us-gaap: Equity Component [Domain] us-types:domainItemType duration us-gaap:EquityComponentDomain
128 us-gaap: Preferred Stock us-types:domainItemType duration us-gaap:PreferredStockMember
129 us-gaap: Common Stock us-types:domainItemType duration us-gaap:CommonStockMember
130 us-gaap: Additional Paid-In Capital us-types:domainItemType duration us-gaap:AdditionalPaidInCapitalMember
131 us-gaap: Accumulated Other Comprehensive Income us-types:domainItemType duration us-gaap:AccumulatedOtherComprehensiveIncomeMember
132 us-gaap: Accumulated Deficit us-types:domainItemType duration us-gaap:RetainedEarningsMember
133 us-gaap: Class of Stock [Axis] xbrli:stringItemType duration us-gaap:StatementClassOfStockAxis
134 us-gaap: Class of Stock [Domain] us-types:domainItemType duration us-gaap:ClassOfStockDomain
135 nly: Series B Cumulative Convertible Redeemable Preferred Stock Member us-types:domainItemType duration nly:SeriesBCumulativeConvertibleRedeemablePreferredStockMember
136 nly: Series A Cumulative Redeemable Preferred Stock Member us-types:domainItemType duration nly:SeriesACumulativeRedeemablePreferredStockMember
137 us-gaap: Common Stock us-types:domainItemType duration us-gaap:CommonStockMember
138 us-gaap: Statement [Line Items] xbrli:stringItemType duration us-gaap:StatementLineItems
139 us-gaap: BALANCE, DECEMBER 31, 2008 xbrli:monetaryItemType instant credit us-gaap:StockholdersEquity
140 us-gaap: Net income attributable to controlling interest xbrli:monetaryItemType duration credit us-gaap:NetIncomeLoss
141 us-gaap: Other comprehensive income xbrli:monetaryItemType duration us-gaap:OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease
142 us-gaap: Exercise of stock options and stock grants xbrli:monetaryItemType duration credit us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
143 nly: Stock option expense and long-term compensation expense xbrli:monetaryItemType duration credit nly:StockOptionExpenseAndLongtermCompensationExpense
144 us-gaap: Conversion of Series B Cumulative Convertible Preferred Stock xbrli:monetaryItemType duration credit us-gaap:StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
145 nly: Net proceeds from direct purchase and dividend reinvestment xbrli:monetaryItemType duration credit nly:NetProceedsFromDirectPurchaseAndDividendReinvestment
146 us-gaap: Preferred Series A dividends declared, $1.4766 per share xbrli:monetaryItemType duration debit us-gaap:DividendsPreferredStock
147 nly: Preferred Series B dividends declared, $1.125 per share xbrli:monetaryItemType duration debit nly:ConvertiblePreferredDividendsDeclared
148 us-gaap: Common dividends declared, $1.79 per share xbrli:monetaryItemType duration debit us-gaap:DividendsCommonStock
149 us-gaap: BALANCE, SEPTEMBER 30, 2009 xbrli:monetaryItemType instant credit us-gaap:StockholdersEquity
* Network: (000055 - Statement - Consolidated Statement of Stockholders' Equity Parentheticals (Unaudited))
150 us-gaap: Statement of Stockholders' Equity [Abstract] xbrli:stringItemType duration us-gaap:StatementOfStockholdersEquityAbstract
151 nly: Statement of Stockholders' Equity Parentheticals [Abstract] xbrli:stringItemType duration nly:StatementOfStockholdersEquityParentheticalsAbstract
152 us-gaap: Statement [Table] xbrli:stringItemType duration us-gaap:StatementTable
153 us-gaap: Statement [Line Items] xbrli:stringItemType duration us-gaap:StatementLineItems
154 us-gaap: Increase (Decrease) in Stockholders' Equity [Roll Forward] xbrli:stringItemType duration us-gaap:IncreaseDecreaseInStockholdersEquityRollForward
155 nly: Preferred Stock Dividends Declared, Per Share [Abstract] xbrli:stringItemType duration nly:RetainedEarningsAccumulatedDeficitDividendPerShareDeclaredPreferredStockParentheticalDisclosureAbstract
156 nly: Preferred Series A dividends declared xbrli:decimalItemType duration nly:PreferredSeriesADividendsPerShare
157 nly: Preferred Series B dividends declared xbrli:decimalItemType duration nly:PreferredSeriesBDividendsDeclared
158 us-gaap: Common Stock Dividends Declared, Per Share [Abstract] xbrli:stringItemType duration us-gaap:RetainedEarningsAccumulatedDeficitDividendPerShareDeclaredCommonStockParentheticalDisclosureAbstract
159 us-gaap: Common dividends declared us-types:perShareItemType duration us-gaap:CommonStockDividendsPerShareDeclared
* Network: (000060 - Statement - Consolidated Statements of Cash Flows (Unaudited))
160 us-gaap: Statement Of Cash Flows [Abstract] xbrli:stringItemType duration us-gaap:StatementOfCashFlowsAbstract
161 us-gaap: Statement [Table] xbrli:stringItemType duration us-gaap:StatementTable
162 us-gaap: Class of Stock [Axis] xbrli:stringItemType duration us-gaap:StatementClassOfStockAxis
163 us-gaap: Class of Stock [Domain] us-types:domainItemType duration us-gaap:ClassOfStockDomain
164 nly: Series B Cumulative Convertible Redeemable Preferred Stock Member us-types:domainItemType duration nly:SeriesBCumulativeConvertibleRedeemablePreferredStockMember
165 nly: Series A Cumulative Redeemable Preferred Stock Member us-types:domainItemType duration nly:SeriesACumulativeRedeemablePreferredStockMember
166 us-gaap: Common Stock us-types:domainItemType duration us-gaap:CommonStockMember
167 us-gaap: Statement [Line Items] xbrli:stringItemType duration us-gaap:StatementLineItems
168 us-gaap: Cash and Cash Equivalents, Period Increase (Decrease) [Abstract] xbrli:stringItemType duration us-gaap:CashAndCashEquivalentsPeriodIncreaseDecreaseAbstract
169 us-gaap: Cash flows from operating activities: xbrli:stringItemType duration us-gaap:NetCashProvidedByUsedInOperatingActivitiesAbstract
170 us-gaap: Net income xbrli:monetaryItemType duration credit us-gaap:ProfitLoss
171 us-gaap: Adjustments to reconcile net income to net cash provided by operating activities: xbrli:stringItemType duration us-gaap:AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract
172 us-gaap: Net income attributable to noncontrolling interest xbrli:monetaryItemType duration debit us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
173 us-gaap: Amortization of Mortgage-Backed Securities premiums and discounts, net xbrli:monetaryItemType duration credit us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments
174 us-gaap: Amortization of intangibles xbrli:monetaryItemType duration debit us-gaap:AmortizationOfIntangibleAssets
175 nly: Amortization of trading securities premiums and discounts xbrli:monetaryItemType duration debit nly:AmortizationOfTradingSecuritiesPremiumsAndDiscountsNet
176 us-gaap: (Gain) loss on sale of Investment Securities xbrli:monetaryItemType duration credit us-gaap:GainsLossesOnSalesOfAssets
177 us-gaap: Stock option and long-term compensation expense xbrli:monetaryItemType duration debit us-gaap:EmployeeBenefitsAndShareBasedCompensation
178 us-gaap: Unrealized gain (loss) on interest rate swaps xbrli:monetaryItemType duration credit us-gaap:UnrealizedGainLossOnDerivatives
179 us-gaap: Equity in Investment with affiliate xbrli:monetaryItemType duration credit us-gaap:IncomeLossFromEquityMethodInvestments
180 us-gaap: Net realized gain on trading investments xbrli:monetaryItemType duration credit us-gaap:TradingSecuritiesRealizedGain
181 nly: Unrealized (appreciation) depreciation on trading investments xbrli:monetaryItemType duration credit nly:UnrealizedAppreciationDepreciationOnTradingInvestment
182 nly: Loss on other-than-temporarily impaired securities xbrli:monetaryItemType duration credit nly:OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities
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184 us-gaap: (Increase) decrease in other assets xbrli:monetaryItemType duration credit us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
185 nly: Purchase of trading securities xbrli:monetaryItemType duration credit nly:PurchaseOfTradingSecurities
186 nly: Proceeds from sale of trading securities xbrli:monetaryItemType duration debit nly:ProceedsFromSaleOfTradingSecurities
187 nly: Purchase of trading securities sold, not yet purchased xbrli:monetaryItemType duration credit nly:PurchaseOfTradingSecuritiesSoldNotYetPurchased
188 nly: Proceeds from securities sold, not yet purchased xbrli:monetaryItemType duration debit nly:ProceedsFromSecuritiesSoldNotYetPurchased
189 nly: Decrease (increase) in advisory and service fees receivable xbrli:monetaryItemType duration credit nly:IncreaseDecreaseInAdvisoryAndServiceFeesReceivable
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191 us-gaap: Increase (decrease) in accrued expenses and other liabilities xbrli:monetaryItemType duration debit us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
192 nly: Proceeds from repurchase agreements from broker dealer xbrli:monetaryItemType duration debit nly:ProceedsFromRepurchaseAgreementsFromBrokerDealer
193 nly: Payments on repurchase agreements from broker dealer xbrli:monetaryItemType duration credit nly:PaymentsOnRepurchaseAgreementsFromBrokerDealer
194 nly: Proceeds from reverse repo from broker dealer xbrli:monetaryItemType duration debit nly:ProceedsFromReverseRepoFromBrokerDealer
195 nly: Payment on reverse repo from broker dealer xbrli:monetaryItemType duration credit nly:PaymentOnReverseRepoFromBrokerDealer
196 us-gaap: Net cash provided by operating activities xbrli:monetaryItemType duration us-gaap:NetCashProvidedByUsedInOperatingActivities
197 us-gaap: Cash flows from investing activities: xbrli:stringItemType duration us-gaap:NetCashProvidedByUsedInInvestingActivitiesAbstract
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200 us-gaap: Principal payments of Mortgage-Backed Securities xbrli:monetaryItemType duration debit us-gaap:ProceedsFromSaleOfMortgageBackedSecuritiesMBSCategorizedAsAvailableForSale
201 nly: Agency debentures called xbrli:monetaryItemType duration debit nly:AgencyDebenturesCalled
202 nly: Purchase of agency debentures xbrli:monetaryItemType duration credit nly:PurchaseOfAgencyDebentures
203 nly: Proceeds from reverse repurchase agreements xbrli:monetaryItemType duration credit nly:PurchaseOfReverseRepurchaseAgreements
204 nly: Payments on reverse repurchase agreements xbrli:monetaryItemType duration debit nly:PaymentsOnReverseRepurchaseAgreements
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208 us-gaap: Cash flows from financing activities: xbrli:stringItemType duration us-gaap:NetCashProvidedByUsedInFinancingActivitiesAbstract
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210 nly: Principal payments on repurchase agreements xbrli:monetaryItemType duration credit nly:PrincipalPaymentsOnRepurchaseAgreements
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213 nly: Net proceeds from follow-on offerings xbrli:monetaryItemType duration debit nly:NetProceedsFromFollowOnOfferings
214 nly: Net proceeds from ATM programs xbrli:monetaryItemType duration debit nly:NetProceedsFromATMPrograms
215 us-gaap: Noncontrolling interest xbrli:monetaryItemType duration debit us-gaap:ProceedsFromPaymentsToMinorityShareholders
216 us-gaap: Dividends paid xbrli:monetaryItemType duration credit us-gaap:PaymentsOfDividends
217 us-gaap: Net cash provided by financing activities xbrli:monetaryItemType duration debit us-gaap:NetCashProvidedByUsedInFinancingActivities
218 us-gaap: Net increase (decrease) in cash and cash equivalents xbrli:monetaryItemType duration us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease
219 us-gaap: Cash and cash equivalents, beginning of period xbrli:monetaryItemType instant debit us-gaap:CashAndCashEquivalentsAtCarryingValue
220 us-gaap: Cash and cash equivalents, end of period xbrli:monetaryItemType instant debit us-gaap:CashAndCashEquivalentsAtCarryingValue
221 us-gaap: Supplemental disclosure of cash flow information: xbrli:stringItemType duration us-gaap:SupplementalCashFlowInformationAbstract
222 us-gaap: Interest paid xbrli:monetaryItemType duration credit us-gaap:InterestPaidNet
223 us-gaap: Taxes paid xbrli:monetaryItemType duration credit us-gaap:IncomeTaxesPaidNet
224 nly: Noncash financing activities: xbrli:stringItemType duration nly:NoncashFinancingActivitiesAbstract
225 nly: Net change in unrealized gain (loss) on available-for-sale securities and interest rate swaps, net of reclassification adjustment xbrli:monetaryItemType duration nly:NetChangeInUnrealizedGainLossOnAvailableforsaleSecuritiesAndInterestRateSwapsNetOfReclassificationAdjustment
226 us-gaap: Dividends declared, not yet paid xbrli:monetaryItemType instant credit us-gaap:DividendsPayableCurrentAndNoncurrent
227 nly: Noncash investing activities: xbrli:stringItemType duration nly:NoncashInvestingActivitiesAbstract
228 nly: Receivable for Investment Securities Sold xbrli:monetaryItemType instant nly:ReceivablesForInvestmentSecuritiesSold
229 nly: Payable for Investment Securities purchased xbrli:monetaryItemType instant credit nly:PayableForInvestmentSecuritiesPurchased
* Network: (000100 - Disclosure - Organization and Significant Accounting Policies)
230 nly: Organization and Significant Accounting Policies [Abstract] xbrli:stringItemType duration nly:OrganizationAndSignificantAccountingPoliciesAbstract
231 us-gaap: Organization and Significant Accounting Policies [Text Block] us-types:textBlockItemType duration us-gaap:SignificantAccountingPoliciesTextBlock
* Network: (000110 - Disclosure - Mortgage-Backed Securities)
232 nly: Mortgage-Backed Securities [Abstract] xbrli:stringItemType duration nly:MortgageBackedSecuritiesAbstract
233 nly: Mortgage-Backed Securities [Text Block] us-types:textBlockItemType duration nly:MortgageBackedSecuritiesAvailableForSaleTextBlock
* Network: (000115 - Disclosure - Agency Debentures)
234 nly: Agency Debentures [Abstract] xbrli:stringItemType duration nly:AgencyDebenturesAbstract
235 nly: Agency Debentures [TextBlock] us-types:textBlockItemType duration nly:AgencyDebenturesTextBlock
* Network: (000120 - Disclosure - Available For Sale Equity Securities)
236 nly: Available For Sale Equity Securities [Abstract] xbrli:stringItemType duration nly:AvailableForSaleEquitySecuritiesAbstract
237 us-gaap: Available For Sale Equity Securities [Text Block] us-types:textBlockItemType duration us-gaap:AvailableForSaleSecuritiesTextBlock
* Network: (000125 - Disclosure - Investment in Affiliate, Equity Method)
238 nly: Investment in Affiliate, Equity Method [Abstract] xbrli:stringItemType duration nly:InvestmentInAffiliateEquityMethodAbstract
239 us-gaap: Investment in Affiliate, Equity Method [Text Block] us-types:textBlockItemType duration us-gaap:EquityMethodInvestmentsTextBlock
* Network: (000130 - Disclosure - Reverse Repurchase Agreement)
240 nly: Reverse Repurchase Agreement [Abstract] xbrli:stringItemType duration nly:ReverseRepurchaseAgreementAbstract
241 nly: Reverse Repurchase Agreement [Text Block] us-types:textBlockItemType duration nly:ReverseRepurchaseAgreementTextBlock
* Network: (000140 - Disclosure - Receivable From Prime Broker)
242 nly: Receivable From Prime Broker [Abstract] xbrli:stringItemType duration nly:ReceivableFromPrimeBrokerAbstract
243 nly: Receivable From Prime Broker [Text Block] us-types:textBlockItemType duration nly:ReceivableFromPrimeBrokerTextBlock
* Network: (000150 - Disclosure - Fair Value Measurements)
244 nly: Fair Value Measurements [Abstract] xbrli:stringItemType duration nly:FairValueMeasurementsAbstract
245 us-gaap: Fair Value Measurements [Text Block] us-types:textBlockItemType duration us-gaap:FairValueMeasurementInputsDisclosureTextBlock
* Network: (000160 - Disclosure - Repurchase Agreements)
246 nly: Repurchase Agreements [Abstract] xbrli:stringItemType duration nly:RepurchaseAgreementsAbstract
247 us-gaap: Repurchase Agreements [Text Block] us-types:textBlockItemType duration us-gaap:RepurchaseAgreementsResaleAgreementsSecuritiesBorrowedAndSecuritiesLoanedDisclosureTextBlock
* Network: (000170 - Disclosure - Interest Rate Swaps)
248 nly: Interest Rate Swaps [Abstract] xbrli:stringItemType duration nly:InterestRateSwapsAbstract
249 us-gaap: Interest Rate Swaps [Text Block] us-types:textBlockItemType duration us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock
* Network: (000180 - Disclosure - Preferred Stock And Common Stock)
250 nly: Preferred Stock And Common Stock [Abstract] xbrli:stringItemType duration nly:PreferredStockAndCommonStockAbstract
251 us-gaap: Preferred Stock And Common Stock [Text Block] us-types:textBlockItemType duration us-gaap:StockholdersEquityNoteDisclosureTextBlock
* Network: (000190 - Disclosure - Net Income Per Common Share)
252 nly: Net Income Per Common Share [Abstract] xbrli:stringItemType duration nly:NetIncomePerCommonShareAbstract
253 nly: Net Income Per Common Share [Text Block] us-types:textBlockItemType duration nly:NetIncomePerCommonShareBasicAndDilutedTextBlock
* Network: (000200 - Disclosure - Long-Term Stock Incentive Plan)
254 nly: Long-Term Stock Incentive Plan [Abstract] xbrli:stringItemType duration nly:LongTermStockIncentivePlanAbstract
255 us-gaap: Long-Term Stock Incentive Plan [Text Block] us-types:textBlockItemType duration us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock
* Network: (000210 - Disclosure - Income Taxes)
256 nly: Income Taxes [Abstract] xbrli:stringItemType duration nly:IncomeTaxesAbstract
257 us-gaap: Income Taxes [Text Block] us-types:textBlockItemType duration us-gaap:IncomeTaxDisclosureTextBlock
* Network: (000220 - Disclosure - Lease Commitments And Contingencies)
258 nly: Lease Commitments And Contingencies [Abstract] xbrli:stringItemType duration nly:LeaseCommitmentsAndContingenciesAbstract
259 us-gaap: Lease Commitments And Contingencies [Text Block] us-types:textBlockItemType duration us-gaap:CommitmentsAndContingenciesDisclosureTextBlock
* Network: (000230 - Disclosure - Interest Rate Risk)
260 nly: Interest Rate Risk [Abstract] xbrli:stringItemType duration nly:InterestRateRiskAbstract
261 us-gaap: Interest Rate Risk [Text Block] us-types:textBlockItemType duration us-gaap:ManagementOfRisksInherentInServicingAssetsAndServicingLiabilitiesTextBlock
* Network: (000240 - Disclosure - Related Party Transactions)
262 nly: Related Party Transactions [Abstract] xbrli:stringItemType duration nly:RelatedPartyTransactionsAbstract
263 us-gaap: Related Party Transactions [Text Block] us-types:textBlockItemType duration us-gaap:RelatedPartyTransactionsDisclosureTextBlock