$NLY
ANNALY CAPITAL MANAGEMENT INC Stock $nly

$nly Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000162828022003099 Filed on February 18, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$544.3M	$2.974B	$1.006B
YoY Change	-45.91%	708.81%	-47.32%
Cost Of Revenue	$61.79M	$249.2M	$94.50M
YoY Change	-34.62%	-72.28%	-84.76%
Gross Profit	$482.5M	$2.725B	$911.7M
YoY Change	-47.08%	-612.75%	-29.32%
Gross Profit Margin	88.65%	91.62%	90.61%
Selling, General & Admin	$40.70M	$186.0M	$45.10M
YoY Change	-9.75%	-22.23%	-38.56%
% of Gross Profit	8.44%	6.83%	4.95%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$3.552M	$24.64M	$13.00M
YoY Change	-72.68%	-39.91%	62.5%
% of Gross Profit	0.74%	0.9%	1.43%
Operating Expenses	$40.90M	$40.95M	$46.50M
YoY Change	-12.05%	-89.41%	-42.38%
Operating Profit	$441.6M	$2.684B	$865.2M
YoY Change	-48.96%	-392.29%	-28.45%
Interest Expense		$249.2M
YoY Change		-72.28%
% of Operating Profit		9.29%
Other Income/Expense, Net		$57.98M
YoY Change		59.68%
Pretax Income	$425.1M	$2.401B	$865.1M
YoY Change	-50.86%	-361.49%	-28.45%
Income Tax	$6.629M	$4.675M	-$13.50M
% Of Pretax Income	1.56%	0.19%	-1.56%
Net Earnings	$415.5M	$2.390B	$877.2M
YoY Change	-52.64%	-368.18%	-27.49%
Net Earnings / Revenue	76.34%	80.36%	87.18%
Basic Earnings Per Share		$1.60
Diluted Earnings Per Share	$285.4K	$1.60	$626.7K
COMMON SHARES
Basic Shares Outstanding	1.450B shares	1.427B shares	1.398B shares
Diluted Shares Outstanding		1.429B shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.342B	$1.342B	$1.244B
YoY Change	7.89%	7.89%	-32.79%
Cash & Equivalents	$1.342B	$1.342B	$1.244B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$2.656M	$2.656M	$16.00M
Other Receivables	$235.0M	$235.0M	$268.0M
Total Short-Term Assets	$1.580B	$1.580B	$1.528B
YoY Change	3.39%	3.39%	-33.74%
LONG-TERM ASSETS
Property, Plant & Equipment	$10.54M	$10.54M	$669.0M
YoY Change	-98.42%	-98.42%	-9.72%
Goodwill	$0.00		$71.80M
YoY Change	-100.0%		0.0%
Intangibles	$24.24M		$55.53M
YoY Change	-56.34%		164.95%
Long-Term Investments	$74.60B	$74.60B	$85.75B
YoY Change	-13.0%	-13.0%	-32.31%
Other Assets	$194.1M	$194.1M
YoY Change
Total Long-Term Assets	$75.18B	$75.18B	$86.93B
YoY Change	-13.51%	-13.51%	-32.08%
TOTAL ASSETS
Total Short-Term Assets	$1.580B	$1.580B	$1.528B
Total Long-Term Assets	$75.18B	$75.18B	$86.93B
Total Assets	$76.76B	$76.76B	$88.46B
YoY Change	-13.22%	-13.22%	-32.11%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$104.9M	$104.9M	$208.0M
YoY Change	-49.57%	-49.57%	-58.15%
Deferred Revenue
YoY Change
Short-Term Debt	$54.77B	$54.77B	$64.64B
YoY Change	-15.27%	-15.27%	-36.47%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$55.34B	$55.34B	$66.04B
YoY Change	-16.2%	-16.2%	-35.92%
LONG-TERM LIABILITIES
Long-Term Debt	$7.108B	$7.108B	$7.181B
YoY Change	-1.02%	-1.02%	-32.02%
Other Long-Term Liabilities	$1.117B	$1.117B	$1.211B
YoY Change	-7.75%	-7.75%	38.08%
Total Long-Term Liabilities	$8.225B	$8.225B	$8.392B
YoY Change	-1.99%	-1.99%	-26.65%
TOTAL LIABILITIES
Total Short-Term Liabilities	$55.34B	$55.34B	$66.04B
Total Long-Term Liabilities	$8.225B	$8.225B	$8.392B
Total Liabilities	$63.57B	$63.59B	$74.43B
YoY Change	-14.6%	-14.58%	-34.99%
SHAREHOLDERS EQUITY
Retained Earnings	-$9.654B		-$10.67B
YoY Change	-9.5%		28.38%
Common Stock	$14.60M		$13.98M
YoY Change	4.4%		-2.23%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$13.17B	$13.17B	$14.01B
YoY Change
Total Liabilities & Shareholders Equity	$76.76B	$76.76B	$88.46B
YoY Change	-13.22%	-13.22%	-32.11%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$415.5M	$2.390B	$877.2M
YoY Change	-52.64%	-368.18%	-27.49%
Depreciation, Depletion And Amortization	$3.552M	$24.64M	$13.00M
YoY Change	-72.68%	-39.91%	62.5%
Cash From Operating Activities	$861.6M	$3.077B	$868.0M
YoY Change	-0.74%	482.77%	-27.36%
INVESTING ACTIVITIES
Capital Expenditures	-$57.40M	-$475.4M	-$1.000M
YoY Change	5640.0%	6690.91%	-99.85%
Acquisitions
YoY Change
Other Investing Activities	-$1.388B	$5.375B	$151.0M
YoY Change	-1018.96%	-86.68%	-177.04%
Cash From Investing Activities	-$1.445B	$4.899B	$150.0M
YoY Change	-1063.35%	-87.86%	-117.12%
FINANCING ACTIVITIES
Cash Dividend Paid		$1.360B
YoY Change		-7.86%
Common Stock Issuance & Retirement, Net		-$552.2M
YoY Change		-365.18%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	879.3M	-$7.878B	-1.014B
YoY Change	-186.71%	-81.01%	285.55%
NET CHANGE
Cash From Operating Activities	861.6M	$3.077B	868.0M
Cash From Investing Activities	-1.445B	$4.899B	150.0M
Cash From Financing Activities	879.3M	-$7.878B	-1.014B
Net Change In Cash	295.8M	$98.39M	4.000M
YoY Change	7294.75%	-116.21%	-92.86%
FREE CASH FLOW
Cash From Operating Activities	$861.6M	$3.077B	$868.0M
Capital Expenditures	-$57.40M	-$475.4M	-$1.000M
Free Cash Flow	$919.0M	$3.552B	$869.0M
YoY Change	5.75%	564.0%	-53.68%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001043219
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201613Member
CY2020Q1	nly	Monthly Management Fee Percentage Of Stockholders Equity Up To A Predetermined Amount Used In Calculating Total Management Fee MonthlyManagementFeePercentageOfStockholdersEquityUpToAPredeterminedAmountUsedInCalculatingTotalManagementFee	0.000875
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssets
CY2021Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilities
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	1-13447
CY2021	dei	Entity Registrant Name EntityRegistrantName	ANNALY CAPITAL MANAGEMENT INC
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	22-3479661
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	1211 Avenue of the Americas
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	New York,
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10036
CY2021	dei	City Area Code CityAreaCode	212
CY2021	dei	Local Phone Number LocalPhoneNumber	696-0100
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	12800000000	USD
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CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	4242043000	USD
CY2021	us-gaap	Repurchase Agreement Counterparty Weighted Average Maturity Of Agreements1 RepurchaseAgreementCounterpartyWeightedAverageMaturityOfAgreements1	P52D
CY2021	dei	Auditor Firm AuditorFirmId	42
CY2021	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2021	dei	Auditor Location AuditorLocation	New York, NY
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CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1342090000	USD
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CY2021Q4	nly	Receivable For Investment Securities Sold ReceivableForInvestmentSecuritiesSold	2656000	USD
CY2020Q4	nly	Receivable For Investment Securities Sold ReceivableForInvestmentSecuritiesSold	15912000	USD
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CY2021	nly	Unrealized Gain Loss On Interest Only Mortgage Backed Securities Mbs UnrealizedGainLossOnInterestOnlyMortgageBackedSecuritiesMBS	183663000	USD
CY2020	nly	Unrealized Gain Loss On Interest Only Mortgage Backed Securities Mbs UnrealizedGainLossOnInterestOnlyMortgageBackedSecuritiesMBS	-303024000	USD
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CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	16569000	USD
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-278559000	USD
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2021	nly	Nonoperating Income Expense Pre Derivative Instruments NonoperatingIncomeExpensePreDerivativeInstruments	109200000	USD
CY2020	nly	Nonoperating Income Expense Pre Derivative Instruments NonoperatingIncomeExpensePreDerivativeInstruments	967213000	USD
CY2019	nly	Nonoperating Income Expense Pre Derivative Instruments NonoperatingIncomeExpensePreDerivativeInstruments	-709262000	USD
CY2021	us-gaap	Nonoperating Gains Losses NonoperatingGainsLosses	795195000	USD
CY2020	us-gaap	Nonoperating Gains Losses NonoperatingGainsLosses	-2062824000	USD
CY2019	us-gaap	Nonoperating Gains Losses NonoperatingGainsLosses	-3011127000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	57981000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	36311000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	106547000	USD
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	118451000	USD
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	131685000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	170628000	USD
CY2021	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	67563000	USD
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1428569003	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1414659439	shares
CY2020	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	90510000	USD
CY2019	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	101140000	USD
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	186014000	USD
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	222195000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	271768000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2400955000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-918195000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-2173926000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4675000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-28423000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-10835000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	2396280000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-889772000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-2163091000	USD
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	6384000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1391000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-226000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	2389896000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-891163000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-2162865000	USD
CY2021	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	107532000	USD
CY2020	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	142036000	USD
CY2019	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	136576000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2282364000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-1033199000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-2299441000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.60
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.73
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.60
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.60
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.73
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.60
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1427426079	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1414659439	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1434912682	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1434912682	shares
CY2021	us-gaap	Profit Loss ProfitLoss	2396280000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-889772000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-2163091000	USD
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2419618000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	2012878000	USD
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	4135862000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-3693000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	776734000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	17806000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2415925000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1236144000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4118056000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-19645000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	346372000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1954965000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	6384000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1391000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-226000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-26029000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	344981000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1955191000	USD
CY2021	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	107532000	USD
CY2020	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	142036000	USD
CY2019	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	136576000	USD
CY2021	nly	Comprehensive Income Loss Attributable To Common Stock Holders ComprehensiveIncomeLossAttributableToCommonStockHolders	-133561000	USD
CY2020	nly	Comprehensive Income Loss Attributable To Common Stock Holders ComprehensiveIncomeLossAttributableToCommonStockHolders	202945000	USD
CY2019	nly	Comprehensive Income Loss Attributable To Common Stock Holders ComprehensiveIncomeLossAttributableToCommonStockHolders	1818615000	USD
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	13195325000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	14021796000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	15796344000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	2396280000	USD
CY2019	nly	Amortization Of Securitized Debt Premiums And Discounts Net AmortizationOfSecuritizedDebtPremiumsAndDiscountsNet	11854000	USD
CY2021	nly	Depreciation Depletion And Amortization Excluding Amortization Of Debt Premiums And Discounts Deferred Financing Costs And Discounts Of Investments DepreciationDepletionAndAmortizationExcludingAmortizationOfDebtPremiumsAndDiscountsDeferredFinancingCostsAndDiscountsOfInvestments	24636000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-889772000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-2163091000	USD
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-784110000	USD
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1371178000	USD
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1113273000	USD
CY2021	nly	Amortization Of Securitized Debt Premiums And Discounts Net AmortizationOfSecuritizedDebtPremiumsAndDiscountsNet	6620000	USD
CY2020	nly	Amortization Of Securitized Debt Premiums And Discounts Net AmortizationOfSecuritizedDebtPremiumsAndDiscountsNet	11576000	USD
CY2020	nly	Depreciation Depletion And Amortization Excluding Amortization Of Debt Premiums And Discounts Deferred Financing Costs And Discounts Of Investments DepreciationDepletionAndAmortizationExcludingAmortizationOfDebtPremiumsAndDiscountsDeferredFinancingCostsAndDiscountsOfInvestments	41357000	USD
CY2019	nly	Depreciation Depletion And Amortization Excluding Amortization Of Debt Premiums And Discounts Deferred Financing Costs And Discounts Of Investments DepreciationDepletionAndAmortizationExcludingAmortizationOfDebtPremiumsAndDiscountsDeferredFinancingCostsAndDiscountsOfInvestments	31559000	USD
CY2021	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-62705000	USD
CY2020	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	661513000	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-47944000	USD
CY2021	nly	Gain Loss On Investments Debt And Derivatives GainLossOnInvestmentsDebtAndDerivatives	1267535000	USD
CY2020	nly	Gain Loss On Investments Debt And Derivatives GainLossOnInvestmentsDebtAndDerivatives	-2368879000	USD
CY2019	nly	Gain Loss On Investments Debt And Derivatives GainLossOnInvestmentsDebtAndDerivatives	-1855025000	USD
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-278559000	USD
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-12181000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-7072000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-6893000	USD
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-145066000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	147581000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	16569000	USD
CY2021	nly	Payments For Purchase Of Loans Operating Activities PaymentsForPurchaseOfLoansOperatingActivities	51403000	USD
CY2020	nly	Payments For Purchase Of Loans Operating Activities PaymentsForPurchaseOfLoansOperatingActivities	147833000	USD
CY2019	nly	Payments For Purchase Of Loans Operating Activities PaymentsForPurchaseOfLoansOperatingActivities	250348000	USD
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	90020000	USD
CY2020	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	168716000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	282693000	USD
CY2021	nly	Payments For Proceeds From Derivative Instrument Operating Activities PaymentsForProceedsFromDerivativeInstrumentOperatingActivities	932867000	USD
CY2020	nly	Payments For Proceeds From Derivative Instrument Operating Activities PaymentsForProceedsFromDerivativeInstrumentOperatingActivities	-1958131000	USD
CY2019	nly	Payments For Proceeds From Derivative Instrument Operating Activities PaymentsForProceedsFromDerivativeInstrumentOperatingActivities	-1939634000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-31044000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-249778000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	39880000	USD
CY2021	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-32926000	USD
CY2020	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-159320000	USD
CY2019	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	85951000	USD
CY2021	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-99590000	USD
CY2020	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-285219000	USD
CY2019	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-94593000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1725000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-31870000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	31838000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3076839000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	527967000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-1199557000	USD
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	22344751000	USD
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	32676856000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	63465822000	USD
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	11670321000	USD
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	52639778000	USD
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	25606504000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	18742951000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	19571476000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	17199893000	USD
CY2021	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	7715200000	USD
CY2020	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	2257314000	USD
CY2019	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	4126123000	USD
CY2021	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	1213745000	USD
CY2020	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	624026000	USD
CY2019	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	365787000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	2610912000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	2222500000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	3139084000	USD
CY2021	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	473035000	USD
CY2020	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	0	USD
CY2019	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	0	USD
CY2021	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	82175000	USD
CY2020	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	72160000	USD
CY2019	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	0	USD
CY2021	nly	Payments To Acquire Interest In Mortgage Servicing Rights PaymentsToAcquireInterestInMortgageServicingRights	65107000	USD
CY2020	nly	Payments To Acquire Interest In Mortgage Servicing Rights PaymentsToAcquireInterestInMortgageServicingRights	0	USD
CY2019	nly	Payments To Acquire Interest In Mortgage Servicing Rights PaymentsToAcquireInterestInMortgageServicingRights	0	USD
CY2021	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	2329000	USD
CY2020	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	7450000	USD
CY2019	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	39144000	USD
CY2021	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	53910000	USD
CY2020	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	149600000	USD
CY2019	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	24955000	USD
CY2021	us-gaap	Proceeds From Securities Purchased Under Agreements To Resell ProceedsFromSecuritiesPurchasedUnderAgreementsToResell	16734313000	USD
CY2020	us-gaap	Proceeds From Securities Purchased Under Agreements To Resell ProceedsFromSecuritiesPurchasedUnderAgreementsToResell	58800000000	USD
CY2019	us-gaap	Proceeds From Securities Purchased Under Agreements To Resell ProceedsFromSecuritiesPurchasedUnderAgreementsToResell	98339755000	USD
CY2021	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	16734313000	USD
CY2020	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	58800000000	USD
CY2019	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	97689715000	USD
CY2021	nly	Proceeds From Unconsolidated Joint Venture Excess Of Cumulative Earnings ProceedsFromUnconsolidatedJointVentureExcessOfCumulativeEarnings	290000	USD
CY2020	nly	Proceeds From Unconsolidated Joint Venture Excess Of Cumulative Earnings ProceedsFromUnconsolidatedJointVentureExcessOfCumulativeEarnings	7590000	USD
CY2019	nly	Proceeds From Unconsolidated Joint Venture Excess Of Cumulative Earnings ProceedsFromUnconsolidatedJointVentureExcessOfCumulativeEarnings	3155000	USD
CY2021	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	6957000	USD
CY2020	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	0	USD
CY2019	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	0	USD
CY2021	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2020	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	6264000	USD
CY2019	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
CY2021	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	1118440000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	4899279000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	40351774000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-20641671000	USD
CY2021	nly	Proceeds From Repurchase Agreements ProceedsFromRepurchaseAgreements	2288704788000	USD
CY2020	nly	Proceeds From Repurchase Agreements ProceedsFromRepurchaseAgreements	2776331362000	USD
CY2019	nly	Proceeds From Repurchase Agreements ProceedsFromRepurchaseAgreements	5470733256000	USD
CY2021	nly	Principal Payments On Repurchase Agreements PrincipalPaymentsOnRepurchaseAgreements	2298775005000	USD
CY2020	nly	Principal Payments On Repurchase Agreements PrincipalPaymentsOnRepurchaseAgreements	2816805618000	USD
CY2019	nly	Principal Payments On Repurchase Agreements PrincipalPaymentsOnRepurchaseAgreements	5449836013000	USD
CY2021	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	3719027000	USD
CY2020	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	2385374000	USD
CY2019	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	3444055000	USD
CY2021	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	1716196000	USD
CY2020	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	1238962000	USD
CY2019	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	2031959000	USD
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	9279000	USD
CY2020	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	553000	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	12228000	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	552215000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1175000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1829025000	USD
CY2021	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
CY2020	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	460000000	USD
CY2019	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	230000000	USD
CY2021	nly	Proceeds From Participating Mortgage Loans ProceedsFromParticipatingMortgageLoans	1847821000	USD
CY2020	nly	Proceeds From Participating Mortgage Loans ProceedsFromParticipatingMortgageLoans	38741000	USD
CY2019	nly	Proceeds From Participating Mortgage Loans ProceedsFromParticipatingMortgageLoans	0	USD
CY2021	nly	Payments On Repurchase Of Participating Mortgage Loans PaymentsOnRepurchaseOfParticipatingMortgageLoans	818575000	USD
CY2020	nly	Payments On Repurchase Of Participating Mortgage Loans PaymentsOnRepurchaseOfParticipatingMortgageLoans	0	USD
CY2019	nly	Payments On Repurchase Of Participating Mortgage Loans PaymentsOnRepurchaseOfParticipatingMortgageLoans	0	USD
CY2021	nly	Principal Payments On Participation Mortgage Loans Issued PrincipalPaymentsOnParticipationMortgageLoansIssued	23374000	USD
CY2020	nly	Principal Payments On Participation Mortgage Loans Issued PrincipalPaymentsOnParticipationMortgageLoansIssued	0	USD
CY2019	nly	Principal Payments On Participation Mortgage Loans Issued PrincipalPaymentsOnParticipationMortgageLoansIssued	0	USD
CY2021	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	-2237000	USD
CY2020	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	-60980000	USD
CY2019	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	-26202000	USD
CY2021	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	5635000	USD
CY2020	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	7762000	USD
CY2019	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	-1136000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	209418000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	223574000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2830000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	1359721000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	1475650000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	1689016000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-7877731000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-41486767000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	21956208000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	98387000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-607026000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	114980000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1243703000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1850729000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1735749000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1342090000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1243703000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1850729000	USD
CY2021	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	2701381000	USD
CY2020	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	3681826000	USD
CY2019	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	4811218000	USD
CY2021	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	51000	USD
CY2020	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	4643000	USD
CY2019	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	8395000	USD
CY2021	nly	Interest Paid Excluding Interest Paid On Interest Rate Swaps InterestPaidExcludingInterestPaidOnInterestRateSwaps	269244000	USD
CY2020	nly	Interest Paid Excluding Interest Paid On Interest Rate Swaps InterestPaidExcludingInterestPaidOnInterestRateSwaps	1166977000	USD
CY2019	nly	Interest Paid Excluding Interest Paid On Interest Rate Swaps InterestPaidExcludingInterestPaidOnInterestRateSwaps	2902644000	USD
CY2021	nly	Interest Paid Net Interest Rate Derivative InterestPaidNetInterestRateDerivative	-340738000	USD
CY2020	nly	Interest Paid Net Interest Rate Derivative InterestPaidNetInterestRateDerivative	296621000	USD
CY2019	nly	Interest Paid Net Interest Rate Derivative InterestPaidNetInterestRateDerivative	-323028000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-3797000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1515000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2284000	USD
CY2021Q4	nly	Receivable For Investment Securities Sold ReceivableForInvestmentSecuritiesSold	2656000	USD
CY2020Q4	nly	Receivable For Investment Securities Sold ReceivableForInvestmentSecuritiesSold	15912000	USD
CY2019Q4	nly	Receivable For Investment Securities Sold ReceivableForInvestmentSecuritiesSold	4792000	USD
CY2021Q4	nly	Payable For Investment Securities Purchased PayableForInvestmentSecuritiesPurchased	147908000	USD
CY2020Q4	nly	Payable For Investment Securities Purchased PayableForInvestmentSecuritiesPurchased	884069000	USD
CY2019Q4	nly	Payable For Investment Securities Purchased PayableForInvestmentSecuritiesPurchased	463387000	USD
CY2021	nly	Net Change In Unrealized Gain Loss On Availableforsale Securities And Interest Rate Swaps Net Of Reclassification Adjustment NetChangeInUnrealizedGainLossOnAvailableforsaleSecuritiesAndInterestRateSwapsNetOfReclassificationAdjustment	-2415925000	USD
CY2020	nly	Net Change In Unrealized Gain Loss On Availableforsale Securities And Interest Rate Swaps Net Of Reclassification Adjustment NetChangeInUnrealizedGainLossOnAvailableforsaleSecuritiesAndInterestRateSwapsNetOfReclassificationAdjustment	1236144000	USD
CY2019	nly	Net Change In Unrealized Gain Loss On Availableforsale Securities And Interest Rate Swaps Net Of Reclassification Adjustment NetChangeInUnrealizedGainLossOnAvailableforsaleSecuritiesAndInterestRateSwapsNetOfReclassificationAdjustment	4118056000	USD
CY2021Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	321142000	USD
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	307613000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	357527000	USD
CY2021	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Assets NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfAssets	3075961000	USD
CY2020	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Assets NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfAssets	1222221000	USD
CY2019	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Assets NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfAssets	0	USD
CY2021	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Securitized Debt NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfSecuritizedDebt	2506799000	USD
CY2020	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Securitized Debt NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfSecuritizedDebt	1141311000	USD
CY2019	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Securitized Debt NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfSecuritizedDebt	0	USD
CY2021	nly	Noncash Or Part Noncash Acquisition Derecognition Of Mortgage Payable NoncashOrPartNoncashAcquisitionDerecognitionOfMortgagePayable	314485000	USD
CY2020	nly	Noncash Or Part Noncash Acquisition Derecognition Of Mortgage Payable NoncashOrPartNoncashAcquisitionDerecognitionOfMortgagePayable	0	USD
CY2019	nly	Noncash Or Part Noncash Acquisition Derecognition Of Mortgage Payable NoncashOrPartNoncashAcquisitionDerecognitionOfMortgagePayable	0	USD
CY2021	nly	Number Of Investment Groups NumberOfInvestmentGroups	3	investmentGroup
CY2021	us-gaap	Basis Of Accounting BasisOfAccounting	<div style="margin-bottom:6pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.415%"><tr><td style="width:1.0%"/><td style="width:98.900%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:justify"><span style="color:#00316c;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:100%">2. BASIS OF PRESENTATION</span></div></td></tr><tr style="height:5pt"><td colspan="3" style="border-top:1pt solid #00316c;padding:0 1pt"/></tr></table></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The accompanying consolidated financial statements and related notes of the Company have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). </span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the consolidated financial statements requires management to make estimates and assumptions that affect the reported balance sheet amounts and/or disclosures at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. </span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain line items in the Company’s Consolidated Statements of Cash Flows were aggregated to simplify presentation. Prior periods have been adjusted to conform to the current presentation.</span></div>Beginning with the quarter ended June 30, 2021, the Company began classifying certain portfolio activity- or volume-related expenses (including but not limited to brokerage and commission fees, due diligence costs and securitization expenses) as Other income (loss) rather than Other general and administrative expenses in the Consolidated Statements of Comprehensive Income (Loss) to better reflect the nature of the items. As such, prior periods have been conformed to the current presentation. Other general and administrative expenses for the three months ended March 31, 2021 decreased by $1.8 million and for the years ended December 31, 2020 and 2019 decreased by $17.0 million and $29.9 million, respectively, and Other income (loss) decreased by the same amounts for the three months ended March 31, 2021 and the years ended December 31, 2020 and 2019, respectively.
CY2021	us-gaap	Revenue Recognition Interest RevenueRecognitionInterest	<div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Interest Income - </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company recognizes interest income primarily on Residential Securities (as defined in the “Securities” Note), residential mortgage loans, commercial investments and reverse repurchase agreements. Interest accrued but not paid is recognized as Interest receivable on the Consolidated Statements of Financial Condition. Interest income is presented as a separate line item on the Consolidated Statements of Comprehensive Income (Loss). Refer to the “Interest Income and Interest Expense” Note for further discussion.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">For its securities, the Company recognizes coupon income, which is a component of interest income, based upon the outstanding principal amounts of the financial instruments and their contractual terms. In addition, the Company amortizes or accretes premiums or discounts into interest income for its Agency mortgage-backed securities (other than interest-only securities, multifamily and reverse mortgages), taking into account estimates of future principal prepayments in the calculation of the effective yield. The Company recalculates the effective yield as differences between anticipated and actual prepayments occur. Using third party model and market information to project future cash flows and expected remaining lives of securities, the effective interest rate determined for each security is applied as if it had been in place from the date of the security’s acquisition. The amortized cost of the security is then adjusted to the amount that would have existed had the new effective yield been applied since the acquisition date, which results in a cumulative premium amortization adjustment in each period. The adjustment to amortized cost is offset with a charge or credit to interest income. Changes in interest rates and other market factors will impact prepayment speed projections and the amount of premium amortization recognized in any given period.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Premiums or discounts associated with the purchase of Agency interest-only securities, reverse mortgages and residential credit securities are amortized or accreted into interest income based upon current expected future cash flows with any adjustment to yield made on a prospective basis.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Premiums and discounts associated with the purchase of residential mortgage loans and with those transferred or pledged to securitization trusts are primarily amortized or accreted into interest income over their estimated remaining lives using the effective interest rates inherent in the estimated cash flows from the mortgage loans. Amortization of premiums and accretion of discounts are presented in Interest income in the Consolidated Statements of Comprehensive Income (Loss). </span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">If collection of a loan’s principal or interest is in doubt or the loan is 90 days or more past due, interest income is not accrued. For nonaccrual status loans carried at fair value or held for sale, interest is not accrued but is recognized on a cash basis. For nonaccrual status loans carried at amortized cost, if collection of principal is not in doubt but collection of interest is in doubt, interest income is recognized on a cash basis. If collection of principal is in doubt, any interest received is applied against principal until collectability of the remaining balance is no longer in doubt; at that point, any interest income is recognized on a cash basis. Generally, a loan is returned to accrual status when the borrower has resumed paying the full amount of the scheduled contractual obligation, if all principal and interest amounts contractually due are reasonably assured of repayment within a reasonable period of time and there is a sustained period of repayment performance by the borrower. Refer to the “Interest Income and Interest Expense” Note for further discussion on interest.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company has made an accounting policy election not to measure an allowance for loans losses for accrued interest receivable. If interest receivable is deemed to be uncollectible or not collected within 90 days of its contractual due date for commercial loans or 120 days for corporate debt carried at amortized cost, it is written off through a reversal of interest income. Any interest written off that is recovered is recognized as interest income.</span></div>
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	75652396000	USD
CY2021	nly	Paymentsto Acquire Debt Securities Availableforsale Excluding Variable Interest Entity PaymentstoAcquireDebtSecuritiesAvailableforsaleExcludingVariableInterestEntity	21551356000	USD
CY2020Q1	us-gaap	Temporary Equity Redemption Price Per Share TemporaryEquityRedemptionPricePerShare	1.00
CY2021	nly	Proceedsfrom Saleof Debt Securities Availableforsale Excluding Variable Interest Entity ProceedsfromSaleofDebtSecuritiesAvailableforsaleExcludingVariableInterestEntity	11631908000	USD
CY2021	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	18741496000	USD
CY2021	nly	Accretion Amortization Of Debt Securities Available For Sale AccretionAmortizationOfDebtSecuritiesAvailableForSale	-760062000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-2414612000	USD
CY2020	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	32400000	shares
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	63655674000	USD
CY2021Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	65793672000	USD
CY2021Q4	nly	Debt Securities Availableforsale Remaining Premium DebtSecuritiesAvailableforsaleRemainingPremium	3771429000	USD
CY2021Q4	nly	Debt Securities Availableforsale Remaining Discount DebtSecuritiesAvailableforsaleRemainingDiscount	77850000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	62903483000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1425965000	USD
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	673774000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	63655674000	USD
CY2020Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	72253465000	USD
CY2020Q4	nly	Debt Securities Availableforsale Remaining Premium DebtSecuritiesAvailableforsaleRemainingPremium	3971492000	USD
CY2020Q4	nly	Debt Securities Availableforsale Remaining Discount DebtSecuritiesAvailableforsaleRemainingDiscount	95734000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	166947000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	72487080000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	3332263000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	75652396000	USD
CY2021	nly	Mortgage Backed Securities Sold Carrying Value MortgageBackedSecuritiesSoldCarryingValue	11500000000	USD
CY2020	nly	Mortgage Backed Securities Sold Carrying Value MortgageBackedSecuritiesSoldCarryingValue	51800000000	USD
CY2021	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	-3079000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	102567000	USD
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	105646000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	942450000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	305449000	USD
CY2020	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	637001000	USD
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Policy For Uncollectible Amounts FinancingReceivableAllowanceForCreditLossesPolicyForUncollectibleAmounts	<div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Allowance for Losses</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> – The Company evaluates the need for a loss reserve on each of its loans classified as held-for-investment, which primarily include corporate debt and commercial loans, where the fair value option is not elected. Allowance for loan losses are written off in the period the loans are deemed uncollectible.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Given the unique nature of each underlying borrower and any collateral, the Company assesses an allowance for each individual loan held for investment. An allowance is established at origination or acquisition that reflects management’s estimate of the total expected credit loss over the expected life of the loan. In estimating the lifetime expected credit losses, management utilizes a probability of default and loss given default methodology (“Loss Given Default methodology”), which considers projected economic conditions over the reasonable and supportable forecast period. The forecast incorporates primarily market-based assumptions including, but not limited to, forward interest rate curves, unemployment rate estimates and certain indexes sourced from third party vendors. For any remaining period of the expected life of the loan after the reasonable and supportable period, the Company reverts to historical losses on a straight-line basis. Management uses third party vendors’ loan pool data for loans with similar risk characteristics to estimate historical losses given the limited loss history of the Company’s loan portfolio. Changes in the lifetime expected credit loss are reflected in Loan loss (provision) reversal in the Consolidated Statements of Comprehensive Income (Loss).</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">For loans experiencing credit deterioration, the Company may use a different methodology to determine the expected credit losses such as a discounted cash flow analysis. For collateral-dependent loans, if foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for any selling costs, if applicable. Additionally, the Company may elect the practical expedient for a financial asset for which the repayment is expected to be provided substantially through the operation or sale of the collateral when the borrower is experiencing financial difficulty by measuring the allowance as the difference between the fair value of the collateral, less costs to sell, if applicable, and the amortized cost basis of the financial asset at the reporting date. The Company’s commercial loans were collateralized by commercial real estate including, but not limited to, multifamily real estate, office and retail space, hotels and industrial space. At origination, the fair value of the collateral generally exceeded the principal loan balance.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Management assesses the credit quality of the portfolio and adequacy of loan loss reserves on a quarterly basis, or more frequently as necessary. Significant judgment is required in this analysis. Depending on the expected recovery of its investment, the Company considers the estimated net recoverable value of the loans as well as other factors, including but not limited to the fair value of any collateral, the amount and the status of any senior debt, the prospects for the borrower and the competitive landscape where the borrower conducts business. To determine if loan loss allowances are required on investments in corporate debt, the Company reviews the monthly and/or quarterly financial statements of the borrowers, verifies loan compliance packages, if applicable, and analyzes current results relative to budgets and sensitivities performed at inception of the investment. Because these determinations are based upon projections of future economic events, which are inherently subjective, the amounts ultimately realized may differ materially from the carrying value as of the reporting date.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company may be exposed to various levels of credit risk depending on the nature of its investments and credit enhancements, if any, supporting its assets. The Company’s core investment process includes procedures related to the initial approval and periodic monitoring of credit risk and other risks associated with each investment. The Company’s investment underwriting procedures include evaluation of the underlying borrowers’ ability to manage and operate their respective properties or companies. Management reviews loan-to-value metrics at origination or acquisition of a new investment and if events occur that trigger re-evaluation by management.</span></div>
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-145100000	USD
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	147600000	USD
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	16600000	USD
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	27900000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	169500000	USD
CY2021Q4	nly	Noncash Or Part Noncash Financial Instruments Owned And Pledged As Collateral NoncashOrPartNoncashFinancialInstrumentsOwnedAndPledgedAsCollateral	3900000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	77900000	USD
CY2021Q4	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	1968991000	USD
CY2020Q4	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	2239930000	USD
CY2021Q4	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	1968991000	USD
CY2020Q4	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	2239930000	USD
CY2020Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	100895000	USD
CY2019Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	378078000	USD
CY2021	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	468196000	USD
CY2020	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	0	USD
CY2021	us-gaap	Servicing Asset At Fair Value Disposals ServicingAssetAtFairValueDisposals	82176000	USD
CY2020	us-gaap	Servicing Asset At Fair Value Disposals ServicingAssetAtFairValueDisposals	72160000	USD
CY2021	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	120879000	USD
CY2020	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-107517000	USD
CY2021	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	-63232000	USD
CY2020	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	-97506000	USD
CY2021Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	544562000	USD
CY2020Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	100895000	USD
CY2021Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	700000000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	171134000	USD
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	208900000	USD
CY2021Q4	us-gaap	Derivative Assets DerivativeAssets	170370000	USD
CY2021Q4	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	747036000	USD
CY2020Q4	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	1006492000	USD
CY2021Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	881537000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	1033345000	USD
CY2021	nly	Gain Loss On Realized Interest Rate Swaps GainLossOnRealizedInterestRateSwaps	-276142000	USD
CY2021	nly	Gain Loss On Termination Of Interest Rate Swaps GainLossOnTerminationOfInterestRateSwaps	-1236349000	USD
CY2021	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	2198486000	USD
CY2020	nly	Gain Loss On Realized Interest Rate Swaps GainLossOnRealizedInterestRateSwaps	-207877000	USD
CY2020	nly	Gain Loss On Termination Of Interest Rate Swaps GainLossOnTerminationOfInterestRateSwaps	-1917628000	USD
CY2020	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-904532000	USD
CY2019	nly	Gain Loss On Realized Interest Rate Swaps GainLossOnRealizedInterestRateSwaps	351375000	USD
CY2019	nly	Gain Loss On Termination Of Interest Rate Swaps GainLossOnTerminationOfInterestRateSwaps	-1442964000	USD
CY2019	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-1210276000	USD
CY2021	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	120574000	USD
CY2020	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	756305000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	0	USD
CY2020Q4	us-gaap	Goodwill Goodwill	71800000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	55526000	USD
CY2021	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	9549000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	7208000	USD
CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	24241000	USD
CY2021Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	54800000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	64800000000	USD
CY2021	us-gaap	Repurchase Agreement Counterparty Weighted Average Maturity Of Agreements1 RepurchaseAgreementCounterpartyWeightedAverageMaturityOfAgreements1	P52D
CY2020	us-gaap	Repurchase Agreement Counterparty Weighted Average Maturity Of Agreements1 RepurchaseAgreementCounterpartyWeightedAverageMaturityOfAgreements1	P64D
CY2021Q4	nly	Securities Soldunder Agreementsto Repurchase Maximum Available Under Counterparty Arrangements SecuritiesSoldunderAgreementstoRepurchaseMaximumAvailableUnderCounterpartyArrangements	1900000000	USD
CY2021Q4	nly	Securities Soldunder Agreementsto Repurchase Commitments Available SecuritiesSoldunderAgreementstoRepurchaseCommitmentsAvailable	1400000000	USD
CY2021Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	54769643000	USD
CY2021Q4	nly	Repurchase Agreements Weighted Average Rates RepurchaseAgreementsWeightedAverageRates	0.0017
CY2020Q1	nly	Stockholders Equity Amount Used In Determining Monthly Management Fee StockholdersEquityAmountUsedInDeterminingMonthlyManagementFee	17280000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	64825239000	USD
CY2020Q4	nly	Repurchase Agreements Weighted Average Rates RepurchaseAgreementsWeightedAverageRates	0.0032
CY2021Q4	nly	Repurchase Agreements Maturity Greater Than One Year Percentage RepurchaseAgreementsMaturityGreaterThanOneYearPercentage	0
CY2020	nly	Percent Of Total Repurchase Agreements With Remaining Maturity Over1 Year PercentOfTotalRepurchaseAgreementsWithRemainingMaturityOver1Year	0.01
CY2021	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table summarizes the gross amounts of reverse repurchase agreements and repurchase agreements, amounts offset in accordance with netting arrangements and net amounts of repurchase agreements and reverse repurchase agreements as presented in the Consolidated Statements of Financial Condition at December 31, 2021 and 2020. Refer to the “Derivative Instruments” Note for information related to the effect of netting arrangements on the Company’s derivative instruments.</span></div><div style="margin-bottom:6pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:89.473%"><tr><td style="width:1.0%"/><td style="width:25.860%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.547%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.616%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.547%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.616%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.547%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.616%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.551%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="background-color:#00316c;border-left:0.5pt solid #000;border-top:0.5pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"> </span></td><td colspan="9" style="background-color:#00316c;border-top:0.5pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2021</span></td><td colspan="3" style="background-color:#00316c;border-top:0.5pt solid #000;padding:0 1pt"/><td colspan="9" style="background-color:#00316c;border-right:0.5pt solid #000;border-top:0.5pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="background-color:#00316c;border-left:0.5pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"> </span></td><td colspan="3" style="background-color:#00316c;border-top:0.5pt solid #ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Reverse Repurchase Agreements</span></td><td colspan="3" style="background-color:#00316c;border-top:0.5pt solid #ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#00316c;border-top:0.5pt solid #ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Repurchase Agreements</span></td><td colspan="3" style="background-color:#00316c;padding:0 1pt"/><td colspan="3" style="background-color:#00316c;border-top:0.5pt solid #ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Reverse Repurchase Agreements</span></td><td colspan="3" style="background-color:#00316c;border-top:0.5pt solid #ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#00316c;border-right:0.5pt solid #000;border-top:0.5pt solid #ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Repurchase Agreements</span></td></tr><tr><td colspan="3" style="background-color:#7d91a6;border-left:0.5pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%"> </span></td><td colspan="21" style="background-color:#7d91a6;border-right:0.5pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">(dollars in thousands)</span></td></tr><tr><td colspan="3" style="border-left:0.5pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Gross amounts</span></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">54,769,643</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">250,000 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">65,075,239 </span></td><td style="border-right:0.5pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#e5e5e5;border-left:0.5pt solid #000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Amounts offset</span></td><td colspan="2" style="background-color:#e5e5e5;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#e5e5e5;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#e5e5e5;padding:0 1pt"/><td colspan="2" style="background-color:#e5e5e5;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#e5e5e5;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#e5e5e5;padding:0 1pt"/><td colspan="2" style="background-color:#e5e5e5;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(250,000)</span></td><td style="background-color:#e5e5e5;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#e5e5e5;padding:0 1pt"/><td colspan="2" style="background-color:#e5e5e5;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(250,000)</span></td><td style="background-color:#e5e5e5;border-right:0.5pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;border-left:0.5pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Netted amounts</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">54,769,643</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">64,825,239 </span></td><td style="background-color:#ffffff;border-right:0.5pt solid #000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:0.5pt solid #000;border-left:0.5pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:0.5pt solid #000;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="border-bottom:0.5pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:0.5pt solid #000;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="border-bottom:0.5pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:0.5pt solid #000;border-top:3pt double #000;padding:0 1pt"/><td colspan="3" style="border-bottom:0.5pt solid #000;padding:0 1pt"/><td colspan="3" style="border-bottom:0.5pt solid #000;border-right:0.5pt solid #000;border-top:3pt double #000;padding:0 1pt"/></tr></table></div>
CY2021Q4	nly	Securities For Reverse Repurchase Agreements Gross Amounts SecuritiesForReverseRepurchaseAgreementsGrossAmounts	0	USD
CY2021Q4	nly	Securities Sold Under Agreements To Repurchase Gross Amounts SecuritiesSoldUnderAgreementsToRepurchaseGrossAmounts	54769643000	USD
CY2020Q4	nly	Securities For Reverse Repurchase Agreements Gross Amounts SecuritiesForReverseRepurchaseAgreementsGrossAmounts	250000000	USD
CY2020Q4	nly	Securities Sold Under Agreements To Repurchase Gross Amounts SecuritiesSoldUnderAgreementsToRepurchaseGrossAmounts	65075239000	USD
CY2021Q4	nly	Securities For Reverse Repurchase Agreements Amounts Offset SecuritiesForReverseRepurchaseAgreementsAmountsOffset	0	USD
CY2021Q4	nly	Securities Sold Under Agreements To Repurchase Amounts Offset SecuritiesSoldUnderAgreementsToRepurchaseAmountsOffset	0	USD
CY2020Q4	nly	Securities For Reverse Repurchase Agreements Amounts Offset SecuritiesForReverseRepurchaseAgreementsAmountsOffset	250000000	USD
CY2020Q4	nly	Securities Sold Under Agreements To Repurchase Amounts Offset SecuritiesSoldUnderAgreementsToRepurchaseAmountsOffset	250000000	USD
CY2021Q4	us-gaap	Securities For Reverse Repurchase Agreements SecuritiesForReverseRepurchaseAgreements	0	USD
CY2021Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	54769643000	USD
CY2020Q4	us-gaap	Securities For Reverse Repurchase Agreements SecuritiesForReverseRepurchaseAgreements	0	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	64825239000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell Fair Value Of Collateral SecuritiesPurchasedUnderAgreementsToResellFairValueOfCollateral	250000000	USD
CY2021Q4	nly	Collateral Held On Repurchase Agreements After Effect Of Interest Rate Swaps Fair Value CollateralHeldOnRepurchaseAgreementsAfterEffectOfInterestRateSwapsFairValue	59200000000	USD
CY2021Q4	nly	Repurchase Agreements Accrued Interest RepurchaseAgreementsAccruedInterest	160800000	USD
CY2020Q4	nly	Collateral Held On Repurchase Agreements After Effect Of Interest Rate Swaps Fair Value CollateralHeldOnRepurchaseAgreementsAfterEffectOfInterestRateSwapsFairValue	70600000000	USD
CY2020Q4	nly	Repurchase Agreements Accrued Interest RepurchaseAgreementsAccruedInterest	196900000	USD
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2936500000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2914850000	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1459736258	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	1459736258	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1398240618	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	1398240618	shares
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	0	shares
CY2020	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	166000	shares
CY2021	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	0	USD
CY2020	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	1175000	USD
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	63500000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	85150000	shares
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	63500000	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	63500000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	63500000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	63500000	shares
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue	1536569000	USD
CY2021Q4	us-gaap	Preferred Stock Redemption Price Per Share PreferredStockRedemptionPricePerShare	25.00
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	1536569000	USD
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1268558000	USD
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1285124000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.88
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.91
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	321142000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	307613000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.22
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.22
CY2021	nly	Common Stock Dividends Taxable Return Of Capital Percent CommonStockDividendsTaxableReturnOfCapitalPercent	1
CY2021	nly	Common Stock Dividends Per Share Taxable CommonStockDividendsPerShareTaxable	0.87
CY2020	nly	Common Stock Dividends Taxable Ordinary Income Percent CommonStockDividendsTaxableOrdinaryIncomePercent	0.74
CY2020	nly	Common Stock Dividends Taxable Capital Gains Percent CommonStockDividendsTaxableCapitalGainsPercent	0.26
CY2020Q1	nly	Stockholders Equity Amount Used In Determining Monthly Management Fee StockholdersEquityAmountUsedInDeterminingMonthlyManagementFee	17280000000	USD
CY2020Q1	nly	Monthly Management Fee Percentage Of Stockholders Equity Over A Predetermined Amount Used In Calculating Total Management Fee MonthlyManagementFeePercentageOfStockholdersEquityOverAPredeterminedAmountUsedInCalculatingTotalManagementFee	0.0075
CY2020	nly	Common Stock Dividends Per Share Taxable CommonStockDividendsPerShareTaxable	0.95
CY2021	nly	Preferred Stock Dividends Taxable Return Of Capital Percent PreferredStockDividendsTaxableReturnOfCapitalPercent	1
CY2020	nly	Preferred Stock Dividends Taxable Ordinary Income Percent PreferredStockDividendsTaxableOrdinaryIncomePercent	0.74
CY2020	nly	Preferred Stock Dividends Taxable Capital Gains Percent PreferredStockDividendsTaxableCapitalGainsPercent	0.26
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	1670738	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	7.05
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	1824434	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.92
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	739815	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	7.35
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	94353	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	8.22
CY2020	nly	Interest Income Securities Mortgage Backed And Agency Debentures InterestIncomeSecuritiesMortgageBackedAndAgencyDebentures	57394000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	2661004	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	6.84
CY2021	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	9800000	USD
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	12100000	USD
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P1Y8M23D
CY2021	nly	Interest Income Agency Security Loans InterestIncomeAgencySecurityLoans	1484354000	USD
CY2020	nly	Interest Income Agency Security Loans InterestIncomeAgencySecurityLoans	1661566000	USD
CY2019	nly	Interest Income Agency Security Loans InterestIncomeAgencySecurityLoans	3105035000	USD
CY2021	nly	Interest Income Securities Mortgage Backed And Agency Debentures InterestIncomeSecuritiesMortgageBackedAndAgencyDebentures	78681000	USD
CY2019	nly	Interest Income Securities Mortgage Backed And Agency Debentures InterestIncomeSecuritiesMortgageBackedAndAgencyDebentures	90511000	USD
CY2021	nly	Interest Income Residential Mortgage Loans InterestIncomeResidentialMortgageLoans	182359000	USD
CY2020	nly	Interest Income Residential Mortgage Loans InterestIncomeResidentialMortgageLoans	170259000	USD
CY2019	nly	Interest Income Residential Mortgage Loans InterestIncomeResidentialMortgageLoans	150066000	USD
CY2021	nly	Interest Income Commercial Real Estate Debt And Preferred Equity InterestIncomeCommercialRealEstateDebtAndPreferredEquity	237597000	USD
CY2020	nly	Interest Income Commercial Real Estate Debt And Preferred Equity InterestIncomeCommercialRealEstateDebtAndPreferredEquity	338763000	USD
CY2019	nly	Interest Income Commercial Real Estate Debt And Preferred Equity InterestIncomeCommercialRealEstateDebtAndPreferredEquity	378395000	USD
CY2021	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	45000	USD
CY2020	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	1643000	USD
CY2019	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	63290000	USD
CY2021	us-gaap	Interest Income Operating InterestIncomeOperating	1983036000	USD
CY2020	us-gaap	Interest Income Operating InterestIncomeOperating	2229625000	USD
CY2019	us-gaap	Interest Income Operating InterestIncomeOperating	3787297000	USD
CY2021	nly	Interest Paid On Repurchase Agreements InterestPaidOnRepurchaseAgreements	116974000	USD
CY2020	nly	Interest Paid On Repurchase Agreements InterestPaidOnRepurchaseAgreements	705218000	USD
CY2019	nly	Interest Paid On Repurchase Agreements InterestPaidOnRepurchaseAgreements	2513282000	USD
CY2021	nly	Interest Expense Securitized Debt Of Consolidated Vie InterestExpenseSecuritizedDebtOfConsolidatedVie	93006000	USD
CY2020	nly	Interest Expense Securitized Debt Of Consolidated Vie InterestExpenseSecuritizedDebtOfConsolidatedVie	142602000	USD
CY2019	nly	Interest Expense Securitized Debt Of Consolidated Vie InterestExpenseSecuritizedDebtOfConsolidatedVie	141981000	USD
CY2021	nly	Interest Expense Participation Sold InterestExpenseParticipationSold	12071000	USD
CY2020	nly	Interest Expense Participation Sold InterestExpenseParticipationSold	78000	USD
CY2019	nly	Interest Expense Participation Sold InterestExpenseParticipationSold	0	USD
CY2021	us-gaap	Interest Expense Other InterestExpenseOther	27192000	USD
CY2020	us-gaap	Interest Expense Other InterestExpenseOther	51214000	USD
CY2019	us-gaap	Interest Expense Other InterestExpenseOther	129612000	USD
CY2021	us-gaap	Interest Expense InterestExpense	249243000	USD
CY2020	us-gaap	Interest Expense InterestExpense	899112000	USD
CY2019	us-gaap	Interest Expense InterestExpense	2784875000	USD
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1733793000	USD
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1330513000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1002422000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	2396280000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-889772000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-2163091000	USD
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	6384000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1391000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-226000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	2389896000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-891163000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-2162865000	USD
CY2021	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	107532000	USD
CY2020	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	142036000	USD
CY2019	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	136576000	USD
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2282364000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-1033199000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-2299441000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1427426079	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1414659439	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1434912682	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1142924	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1428569003	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1414659439	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1434912682	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.60
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.73
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.60
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.60
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.73
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.60
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1000000	shares
CY2021	nly	Percentage Of Taxable Income Required To Be Distributed While Operating As Reit PercentageOfTaxableIncomeRequiredToBeDistributedWhileOperatingAsReit	1
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	170600000	USD
CY2021	nly	Operating Lease Remaining Lease Term OperatingLeaseRemainingLeaseTerm	P4Y
CY2021Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	3300000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10542000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	13713000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y8M12D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.029
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	3918000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	3862000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	3862000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3862000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2895000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	14481000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	768000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	13713000	USD
CY2020Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	USD
CY2021Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	USD

Files In Submission

Name	View Source	Status
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0001628280-22-003099-index.html	Edgar Link	pending
0001628280-22-003099.txt	Edgar Link	pending
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a202110-knlyexhibit1010psu.htm	Edgar Link	pending
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$NLY
ANNALY CAPITAL MANAGEMENT INC Stock $nly

2021 Q4 Form 10-K Financial Statement

#000162828022003099 Filed on February 18, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NLY ANNALY CAPITAL MANAGEMENT INC Stock $nly

2021 Q4 Form 10-K Financial Statement

#000162828022003099 Filed on February 18, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NLY
ANNALY CAPITAL MANAGEMENT INC Stock $nly