$NLY
ANNALY CAPITAL MANAGEMENT INC Stock $nly

$nly Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000162828020015849 Filed on November 06, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q3
Revenue	$1.006B	$1.167B	$82.50M
YoY Change	-47.32%	1314.79%	-91.8%
Cost Of Revenue	$94.50M	$115.1M	$766.9M
YoY Change	-84.76%	-84.99%	53.07%
Gross Profit	$911.7M	$1.052B	-$684.4M
YoY Change	-29.32%	-253.73%	-235.61%
Gross Profit Margin	90.61%	90.14%	-829.58%
Selling, General & Admin	$45.10M	$48.80M	$66.10M
YoY Change	-38.56%	-26.17%	-47.75%
% of Gross Profit	4.95%	4.64%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$13.00M	$11.00M	$7.000M
YoY Change	62.5%	57.14%	-86.27%
% of Gross Profit	1.43%	1.05%
Operating Expenses	$46.50M	$26.90M	$69.60M
YoY Change	-42.38%	-61.35%	-44.98%
Operating Profit	$865.2M	$1.025B	-$754.0M
YoY Change	-28.45%	-235.97%	-299.37%
Interest Expense		$115.1M	$766.9M
YoY Change		-84.99%	53.08%
% of Operating Profit		11.23%
Other Income/Expense, Net		$3.714M	$35.07M
YoY Change		-89.41%	-429.55%
Pretax Income	$865.1M	$1.025B	-$754.1M
YoY Change	-28.45%	-235.96%	-299.39%
Income Tax	-$13.50M	$9.719M	-$6.907M
% Of Pretax Income	-1.56%	0.95%
Net Earnings	$877.2M	$1.016B	-$747.1M
YoY Change	-27.49%	-235.96%	-293.75%
Net Earnings / Revenue	87.18%	87.02%	-905.53%
Basic Earnings Per Share		$0.70	-$0.54
Diluted Earnings Per Share	$626.7K	$0.70	-$0.54
COMMON SHARES
Basic Shares Outstanding	1.398B shares	1.404B shares	1.453B shares
Diluted Shares Outstanding		1.404B shares	1.453B shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.244B	$1.240B	$1.794B
YoY Change	-32.79%	-30.88%	65.65%
Cash & Equivalents	$1.244B	$1.240B	$1.794B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$16.00M	$54.00M	$193.0M
Other Receivables	$268.0M	$281.0M	$484.0M
Total Short-Term Assets	$1.528B	$1.575B	$2.471B
YoY Change	-33.74%	-36.26%	-8.38%
LONG-TERM ASSETS
Property, Plant & Equipment	$669.0M	$804.0M	$742.0M
YoY Change	-9.72%	8.36%	-1.46%
Goodwill	$71.80M	$71.80M	$71.80M
YoY Change	0.0%	0.0%	0.0%
Intangibles	$55.53M	$65.09M	$23.09M
YoY Change	164.95%	181.89%	-26.06%
Long-Term Investments	$85.75B	$86.37B	$125.1B
YoY Change	-32.31%	-30.97%	23.06%
Other Assets
YoY Change
Total Long-Term Assets	$86.93B	$87.62B	$126.5B
YoY Change	-32.08%	-30.73%	22.49%
TOTAL ASSETS
Total Short-Term Assets	$1.528B	$1.575B	$2.471B
Total Long-Term Assets	$86.93B	$87.62B	$126.5B
Total Assets	$88.46B	$89.19B	$129.0B
YoY Change	-32.11%	-30.84%	21.7%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$208.0M	$173.0M	$587.0M
YoY Change	-58.15%	-70.53%	46.75%
Deferred Revenue
YoY Change
Short-Term Debt	$64.64B	$64.63B	$102.6B
YoY Change	-36.47%	-37.0%	30.38%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$66.04B	$66.29B	$103.8B
YoY Change	-35.92%	-36.13%	27.04%
LONG-TERM LIABILITIES
Long-Term Debt	$7.181B	$7.397B	$8.895B
YoY Change	-32.02%	-16.84%	1.07%
Other Long-Term Liabilities	$1.211B	$1.309B	$1.050B
YoY Change	38.08%	24.67%	107.92%
Total Long-Term Liabilities	$8.392B	$8.706B	$9.945B
YoY Change	-26.65%	-12.46%	6.87%
TOTAL LIABILITIES
Total Short-Term Liabilities	$66.04B	$66.29B	$103.8B
Total Long-Term Liabilities	$8.392B	$8.706B	$9.945B
Total Liabilities	$74.43B	$75.00B	$113.7B
YoY Change	-34.99%	-34.06%	24.97%
SHAREHOLDERS EQUITY
Retained Earnings	-$10.67B	-$11.20B	-$9.126B
YoY Change	28.38%	22.74%	403.65%
Common Stock	$13.98M	$14.03M	$14.38M
YoY Change	-2.23%	-2.44%	10.35%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$14.01B	$14.18B	$15.22B
YoY Change
Total Liabilities & Shareholders Equity	$88.46B	$89.19B	$129.0B
YoY Change	-32.11%	-30.84%	21.7%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q3
OPERATING ACTIVITIES
Net Income	$877.2M	$1.016B	-$747.1M
YoY Change	-27.49%	-235.96%	-293.75%
Depreciation, Depletion And Amortization	$13.00M	$11.00M	$7.000M
YoY Change	62.5%	57.14%	-86.27%
Cash From Operating Activities	$868.0M	$1.000B	-$709.0M
YoY Change	-27.36%	-241.04%	-196.73%
INVESTING ACTIVITIES
Capital Expenditures	-$1.000M	-$5.000M	-$180.0M
YoY Change	-99.85%	-97.22%	-69.85%
Acquisitions
YoY Change
Other Investing Activities	$151.0M	$1.785B	$3.431B
YoY Change	-177.04%	-47.97%	-483.35%
Cash From Investing Activities	$150.0M	$1.780B	$3.250B
YoY Change	-117.12%	-45.23%	-317.68%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-1.014B	-2.934B	-2.730B
YoY Change	285.55%	7.47%	-486.14%
NET CHANGE
Cash From Operating Activities	868.0M	1.000B	-709.0M
Cash From Investing Activities	150.0M	1.780B	3.250B
Cash From Financing Activities	-1.014B	-2.934B	-2.730B
Net Change In Cash	4.000M	-154.0M	-189.0M
YoY Change	-92.86%	-18.52%	256.6%
FREE CASH FLOW
Cash From Operating Activities	$868.0M	$1.000B	-$709.0M
Capital Expenditures	-$1.000M	-$5.000M	-$180.0M
Free Cash Flow	$869.0M	$1.005B	-$529.0M
YoY Change	-53.68%	-289.98%	-139.77%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	City Area Code CityAreaCode	212
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0001043219
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019Q1	nly	Monthly Management Fee Percentage Of Stockholders Equity Up To A Predetermined Amount Used In Calculating Total Management Fee MonthlyManagementFeePercentageOfStockholdersEquityUpToAPredeterminedAmountUsedInCalculatingTotalManagementFee	0.000875
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	1-13447
	dei	Entity Registrant Name EntityRegistrantName	ANNALY CAPITAL MANAGEMENT INC
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	22-3479661
	dei	Entity Address Address Line1 EntityAddressAddressLine1	1211 Avenue of the Americas
	dei	Entity Address City Or Town EntityAddressCityOrTown	New York,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10036
	dei	Local Phone Number LocalPhoneNumber	696-0100
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	1398228330	shares
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CY2019Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	41161000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	107057000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	130225000	USD
CY2020Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	19636000	USD
CY2019Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	24977000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	87070000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	98058000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	48832000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	66138000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	194127000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	228283000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1025267000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-754076000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1783335000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-3383074000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9719000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-6907000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-14928000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-10241000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	1015548000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	-747169000	USD
	us-gaap	Profit Loss ProfitLoss	-1768407000	USD
	us-gaap	Profit Loss ProfitLoss	-3372833000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-126000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-110000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-28000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-294000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	1015674000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-747059000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1768379000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-3372539000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	35509000	USD
CY2019Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	36151000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	106527000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	101067000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	980165000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-783210000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-1874906000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-3473606000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.54
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.32
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.42
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.54
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.32
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.42
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1404202695	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1453359211	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1419645475	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1436204582	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1453359211	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1404368300	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1419645475	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1436204582	shares
CY2020Q3	us-gaap	Profit Loss ProfitLoss	1015548000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	-747169000	USD
	us-gaap	Profit Loss ProfitLoss	-1768407000	USD
	us-gaap	Profit Loss ProfitLoss	-3372833000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-140671000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1034873000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	2220271000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	4289054000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	112347000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	86061000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	769406000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-4626000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-253018000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	948812000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1450865000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4293680000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	762530000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	201643000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-317542000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	920847000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-126000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-110000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-28000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-294000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	762656000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	201753000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-317514000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	921141000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	35509000	USD
CY2019Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	36151000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	106527000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	101067000	USD
CY2020Q3	nly	Comprehensive Income Loss Attributable To Common Stock Holders ComprehensiveIncomeLossAttributableToCommonStockHolders	727147000	USD
CY2019Q3	nly	Comprehensive Income Loss Attributable To Common Stock Holders ComprehensiveIncomeLossAttributableToCommonStockHolders	165602000	USD
	nly	Comprehensive Income Loss Attributable To Common Stock Holders ComprehensiveIncomeLossAttributableToCommonStockHolders	-424041000	USD
	nly	Comprehensive Income Loss Attributable To Common Stock Holders ComprehensiveIncomeLossAttributableToCommonStockHolders	820074000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	14194672000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	15223704000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	14194672000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	15223704000	USD
	us-gaap	Profit Loss ProfitLoss	-1768407000	USD
	us-gaap	Profit Loss ProfitLoss	-3372833000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1130285000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-943277000	USD
	nly	Amortization Of Securitized Debt Premiums And Discounts Net AmortizationOfSecuritizedDebtPremiumsAndDiscountsNet	7263000	USD
	nly	Amortization Of Securitized Debt Premiums And Discounts Net AmortizationOfSecuritizedDebtPremiumsAndDiscountsNet	11457000	USD
	nly	Depreciation Depletion And Amortization Excluding Amortization Of Debt Premiums And Discounts Deferred Financing Costs And Discounts Of Investments DepreciationDepletionAndAmortizationExcludingAmortizationOfDebtPremiumsAndDiscountsDeferredFinancingCostsAndDiscountsOfInvestments	28181000	USD
	nly	Depreciation Depletion And Amortization Excluding Amortization Of Debt Premiums And Discounts Deferred Financing Costs And Discounts Of Investments DepreciationDepletionAndAmortizationExcludingAmortizationOfDebtPremiumsAndDiscountsDeferredFinancingCostsAndDiscountsOfInvestments	24107000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	652150000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-65727000	USD
	nly	Gain Loss On Investments Debt And Derivatives GainLossOnInvestmentsDebtAndDerivatives	-2889963000	USD
	nly	Gain Loss On Investments Debt And Derivatives GainLossOnInvestmentsDebtAndDerivatives	-2589685000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2596000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-3350000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	146084000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9207000	USD
	nly	Payments For Purchase Of Loans Operating Activities PaymentsForPurchaseOfLoansOperatingActivities	120855000	USD
	nly	Payments For Purchase Of Loans Operating Activities PaymentsForPurchaseOfLoansOperatingActivities	196252000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	139672000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	220409000	USD
	nly	Payments For Proceeds From Derivative Instrument Operating Activities PaymentsForProceedsFromDerivativeInstrumentOperatingActivities	-2210881000	USD
	nly	Payments For Proceeds From Derivative Instrument Operating Activities PaymentsForProceedsFromDerivativeInstrumentOperatingActivities	-2561170000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-291745000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	45547000	USD
	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-148165000	USD
	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	92959000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-320997000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-5131000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-30769000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	34194000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-339823000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-2395393000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	24970238000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	51502672000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	50295038000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	19713184000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	14392160000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	11206792000	USD
	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	1658578000	USD
	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	2718403000	USD
	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	583040000	USD
	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	365787000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	1558859000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	2523471000	USD
	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	6123000	USD
	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	12384000	USD
	us-gaap	Payments To Acquire Real Estate Held For Investment PaymentsToAcquireRealEstateHeldForInvestment	0	USD
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	6661000	USD
	us-gaap	Proceeds From Securities Purchased Under Agreements To Resell ProceedsFromSecuritiesPurchasedUnderAgreementsToResell	46100000000	USD
	us-gaap	Proceeds From Securities Purchased Under Agreements To Resell ProceedsFromSecuritiesPurchasedUnderAgreementsToResell	78439755000	USD
	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	46100000000	USD
	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	77789715000	USD
	nly	Proceeds From Unconsolidated Joint Venture Excess Of Cumulative Earnings ProceedsFromUnconsolidatedJointVentureExcessOfCumulativeEarnings	6641000	USD
	nly	Proceeds From Unconsolidated Joint Venture Excess Of Cumulative Earnings ProceedsFromUnconsolidatedJointVentureExcessOfCumulativeEarnings	1975000	USD
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	1047000	USD
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	40201846000	USD
	nly	Proceeds From Repurchase Agreements ProceedsFromRepurchaseAgreements	4275937246000	USD
	nly	Principal Payments On Repurchase Agreements PrincipalPaymentsOnRepurchaseAgreements	2394417060000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-19765549000	USD
	nly	Proceeds From Repurchase Agreements ProceedsFromRepurchaseAgreements	2353694509000	USD
	nly	Principal Payments On Repurchase Agreements PrincipalPaymentsOnRepurchaseAgreements	4254088297000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	2385374000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	2030356000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	860306000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	1778314000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	553000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	5222000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1075000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1829025000	USD
	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	230000000	USD
	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	22550000	USD
	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	-25398000	USD
	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	8167000	USD
	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	-987000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	175076000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	155304000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	1131450000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	1293991000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-40472770000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	22219114000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-610747000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	58172000	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
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1239982000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1793921000	USD
	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	2926598000	USD
	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	3583189000	USD
	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	4485000	USD
	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	6279000	USD
	nly	Interest Paid Excluding Interest Paid On Interest Rate Swaps InterestPaidExcludingInterestPaidOnInterestRateSwaps	1050203000	USD
	nly	Interest Paid Excluding Interest Paid On Interest Rate Swaps InterestPaidExcludingInterestPaidOnInterestRateSwaps	2041539000	USD
	nly	Interest Paid Net Interest Rate Derivative InterestPaidNetInterestRateDerivative	290277000	USD
	nly	Interest Paid Net Interest Rate Derivative InterestPaidNetInterestRateDerivative	-96169000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1551000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	274000	USD
CY2020Q3	nly	Receivable For Investment Securities Sold ReceivableForInvestmentSecuritiesSold	54200000	USD
CY2019Q3	nly	Receivable For Investment Securities Sold ReceivableForInvestmentSecuritiesSold	193229000	USD
CY2020Q3	nly	Payable For Investment Securities Purchased PayableForInvestmentSecuritiesPurchased	1176001000	USD
CY2019Q3	nly	Payable For Investment Securities Purchased PayableForInvestmentSecuritiesPurchased	245626000	USD
	nly	Net Change In Unrealized Gain Loss On Availableforsale Securities And Interest Rate Swaps Net Of Reclassification Adjustment NetChangeInUnrealizedGainLossOnAvailableforsaleSecuritiesAndInterestRateSwapsNetOfReclassificationAdjustment	1450865000	USD
	nly	Net Change In Unrealized Gain Loss On Availableforsale Securities And Interest Rate Swaps Net Of Reclassification Adjustment NetChangeInUnrealizedGainLossOnAvailableforsaleSecuritiesAndInterestRateSwapsNetOfReclassificationAdjustment	4293680000	USD
CY2020Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	308644000	USD
CY2019Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	359491000	USD
	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Assets NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfAssets	1222221000	USD
	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Assets NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfAssets	0	USD
	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Securitized Debt NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfSecuritizedDebt	1141311000	USD
	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Securitized Debt NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfSecuritizedDebt	0	USD
	nly	Number Of Investment Groups NumberOfInvestmentGroups	4	numberOfInvestmentGroups
	us-gaap	Basis Of Accounting BasisOfAccounting	<div style="margin-bottom:5pt;margin-top:5pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;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 accompanying consolidated financial statements and related notes are unaudited and should be read in conjunction with the audited consolidated financial statements included in the Company’s most recent Annual Report on Form 10-K for the fiscal year ended December 31, 2019 (the “2019 Form 10-K”). The consolidated financial information as of December 31, 2019 has been derived from audited consolidated financial statements included in the Company’s 2019 Form 10-K.</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%">In the opinion of management, all normal, recurring adjustments have been included for a fair presentation of this interim financial information. Interim period operating results may not be indicative of the operating results for a full year.</span></div>
	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, 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. 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:3pt;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. See the Note “Interest Income and Interest Expense” 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><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%">Refer to the “Interest Income and Interest Expense” Note for further discussion of interest income.</span></div>
CY2019Q4	nly	Debt Securities Availableforsale Remaining Premium DebtSecuritiesAvailableforsaleRemainingPremium	5353597000	USD
CY2019Q4	nly	Debt Securities Availableforsale Remaining Discount DebtSecuritiesAvailableforsaleRemainingDiscount	166320000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	114833580000	USD
	nly	Paymentsto Acquire Debt Securities Availableforsale Excluding Variable Interest Entity PaymentstoAcquireDebtSecuritiesAvailableforsaleExcludingVariableInterestEntity	25679591000	USD
	nly	Proceedsfrom Saleof Debt Securities Availableforsale Excluding Variable Interest Entity ProceedsfromSaleofDebtSecuritiesAvailableforsaleExcludingVariableInterestEntity	50283998000	USD
	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	14359102000	USD
	nly	Accretion Amortization Of Debt Securities Available For Sale AccretionAmortizationOfDebtSecuritiesAvailableForSale	-1135109000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-1364023000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	76098985000	USD
CY2020Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	72765742000	USD
CY2020Q3	nly	Debt Securities Availableforsale Remaining Premium DebtSecuritiesAvailableforsaleRemainingPremium	3794605000	USD
CY2020Q3	nly	Debt Securities Availableforsale Remaining Discount DebtSecuritiesAvailableforsaleRemainingDiscount	99770000	USD
CY2020Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	72763833000	USD
CY2020Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	3548903000	USD
CY2020Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	213751000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	76098985000	USD
CY2019Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	113123301000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	112863385000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2261636000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	291441000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	114833580000	USD
CY2020Q3	nly	Mortgage Backed Securities Sold Carrying Value MortgageBackedSecuritiesSoldCarryingValue	2800000000	USD
	nly	Mortgage Backed Securities Sold Carrying Value MortgageBackedSecuritiesSoldCarryingValue	50200000000	USD
CY2019Q3	nly	Mortgage Backed Securities Sold Carrying Value MortgageBackedSecuritiesSoldCarryingValue	11100000000	USD
	nly	Mortgage Backed Securities Sold Carrying Value MortgageBackedSecuritiesSoldCarryingValue	30700000000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	117373000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	13440000	USD
CY2020Q3	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	103933000	USD
CY2019Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	104427000	USD
CY2019Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	28175000	USD
CY2019Q3	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	76252000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	929010000	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	297934000	USD
	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	631076000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	127970000	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	178531000	USD
	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	-50561000	USD
CY2019Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	3500000	USD
	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 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. A provision 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 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 are 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 exceeds 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 </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%">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>
CY2020Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-22000000.0	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	146100000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	9200000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	168000000.0	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	20100000	USD
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	4462350000	USD
	nly	Mortgage Loanson Real Estate Provision MortgageLoansonRealEstateProvision	33253000	USD
	us-gaap	Mortgage Loans On Real Estate New Mortgage Loans MortgageLoansOnRealEstateNewMortgageLoans	1808766000	USD
	us-gaap	Mortgage Loans On Real Estate Cost Of Mortgages Sold MortgageLoansOnRealEstateCostOfMortgagesSold	2728213000	USD
	srt	Mortgage Loans On Real Estate Collections Of Principal MortgageLoansOnRealEstateCollectionsOfPrincipal	621804000	USD
	nly	Mortgage Loanson Real Estate Gains Losses MortgageLoansonRealEstateGainsLosses	-106481000	USD
	nly	Sec Schedule1229 Real Estate Companies Investment In Mortgage Loans On Real Estate Amortization Accretion Of Premium SECSchedule1229RealEstateCompaniesInvestmentInMortgageLoansOnRealEstateAmortizationAccretionOfPremium	-6976000	USD
CY2020Q3	us-gaap	Notes Receivable Net NotesReceivableNet	2788341000	USD
CY2020Q3	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	2061878000	USD
CY2019Q4	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	2144850000	USD
CY2020Q3	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	2061878000	USD
CY2019Q4	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	2144850000	USD
CY2020Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	227400000	USD
CY2019Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	425328000	USD
CY2019Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	378078000	USD
CY2018Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	557813000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	7633000	USD
CY2019Q3	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-17312000	USD
	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-99220000	USD
	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-116150000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	-27048000	USD
CY2019Q3	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	-21965000	USD
	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	-70873000	USD
	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	-55612000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	207985000	USD
CY2019Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	386051000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	207985000	USD
CY2019Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	386051000	USD
CY2019Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	0	USD
CY2020Q3	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	0	USD
	nly	Number Of Real Estate Properties Acquired Foreclosure NumberOfRealEstatePropertiesAcquiredForeclosure	2	property
CY2020Q3	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	79800000	USD
	nly	Number Of Real Estate Properties Purchased NumberOfRealEstatePropertiesPurchased	0	property
	nly	Number Of Real Estate Properties Sold NumberOfRealEstatePropertiesSold	0	property
	nly	Number Of Real Estate Properties Sold NumberOfRealEstatePropertiesSold	1	property
	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	6700000	USD
	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	2700000	USD
	nly	Weighted Average Amortization Period WeightedAverageAmortizationPeriod	P6Y
CY2020Q3	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	786490000	USD
CY2019Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	704354000	USD
CY2020Q3	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	104978000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	87532000	USD
CY2020Q3	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	681512000	USD
CY2019Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	616822000	USD
CY2020Q3	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	109085000	USD
CY2019Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	108816000	USD
CY2020Q3	us-gaap	Real Estate Investments RealEstateInvestments	790597000	USD
CY2019Q4	us-gaap	Real Estate Investments RealEstateInvestments	725638000	USD
CY2020Q3	us-gaap	Lessor Operating Lease Payments To Be Received Remainder Of Fiscal Year LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear	14768000	USD
CY2020Q3	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	55088000	USD
CY2020Q3	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	50685000	USD
CY2020Q3	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	47119000	USD
CY2020Q3	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	42429000	USD
CY2020Q3	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	191310000	USD
CY2020Q3	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	401399000	USD
CY2020Q3	us-gaap	Interest Rate Derivative Assets At Fair Value InterestRateDerivativeAssetsAtFairValue	0	USD
CY2019Q4	us-gaap	Interest Rate Derivative Assets At Fair Value InterestRateDerivativeAssetsAtFairValue	1199000	USD
CY2020Q3	us-gaap	Derivative Assets DerivativeAssets	103245000	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	113556000	USD
CY2020Q3	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	1126179000	USD
CY2019Q4	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	706862000	USD
CY2020Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	1182681000	USD
CY2019Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	803866000	USD
CY2020Q3	nly	Gain Loss On Realized Interest Rate Swaps GainLossOnRealizedInterestRateSwaps	-62529000	USD
CY2020Q3	nly	Gain Loss On Termination Of Interest Rate Swaps GainLossOnTerminationOfInterestRateSwaps	-427000	USD
CY2020Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	170327000	USD
CY2019Q3	nly	Gain Loss On Realized Interest Rate Swaps GainLossOnRealizedInterestRateSwaps	88466000	USD
CY2019Q3	nly	Gain Loss On Termination Of Interest Rate Swaps GainLossOnTerminationOfInterestRateSwaps	-682602000	USD
CY2019Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-326309000	USD
	nly	Gain Loss On Realized Interest Rate Swaps GainLossOnRealizedInterestRateSwaps	-141070000	USD
	nly	Gain Loss On Termination Of Interest Rate Swaps GainLossOnTerminationOfInterestRateSwaps	-1919720000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-1162768000	USD
	nly	Gain Loss On Realized Interest Rate Swaps GainLossOnRealizedInterestRateSwaps	306154000	USD
	nly	Gain Loss On Termination Of Interest Rate Swaps GainLossOnTerminationOfInterestRateSwaps	-1438349000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-1992884000	USD
CY2020Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	169316000	USD
CY2019Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-16888000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	546658000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-638458000	USD
CY2020Q3	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	1100000000	USD
CY2020Q3	us-gaap	Goodwill Goodwill	71800000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	71800000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	20957000	USD
	nly	Intangible Assets Acquired IntangibleAssetsAcquired	50360000	USD
	nly	Intangible Assets Divested IntangibleAssetsDivested	110000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6122000	USD
CY2020Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	65085000	USD
CY2020Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	64600000000	USD
CY2019Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	101700000000	USD
CY2020Q3	nly	Repurchase Agreements Weighted Average Borrowing Rates RepurchaseAgreementsWeightedAverageBorrowingRates	0.0081
CY2019Q4	nly	Repurchase Agreements Weighted Average Borrowing Rates RepurchaseAgreementsWeightedAverageBorrowingRates	0.0199
	us-gaap	Repurchase Agreement Counterparty Weighted Average Maturity Of Agreements1 RepurchaseAgreementCounterpartyWeightedAverageMaturityOfAgreements1	P72D
CY2019	us-gaap	Repurchase Agreement Counterparty Weighted Average Maturity Of Agreements1 RepurchaseAgreementCounterpartyWeightedAverageMaturityOfAgreements1	P65D
CY2020Q3	nly	Securities Soldunder Agreementsto Repurchase Maximum Available Under Counterparty Arrangements SecuritiesSoldunderAgreementstoRepurchaseMaximumAvailableUnderCounterpartyArrangements	2400000000	USD
CY2020Q3	nly	Securities Soldunder Agreementsto Repurchase Commitments Available SecuritiesSoldunderAgreementstoRepurchaseCommitmentsAvailable	2000000000.0	USD
CY2020Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	64633447000	USD
CY2020Q3	nly	Repurchase Agreements Weighted Average Rates RepurchaseAgreementsWeightedAverageRates	0.0042
CY2019Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	101740728000	USD
CY2019Q4	nly	Repurchase Agreements Weighted Average Rates RepurchaseAgreementsWeightedAverageRates	0.0203
CY2019Q4	nly	Repurchase Agreements Maturity Greater Than One Year Percentage RepurchaseAgreementsMaturityGreaterThanOneYearPercentage	0
	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	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 September 30, 2020 and December 31, 2019. Refer to the “Derivative Instruments” Note for information related to the effect of netting arrangements on the Company’s derivative instruments.<table style="border-collapse:collapse;display:inline-table;vertical-align:top;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:1pt solid #000000;border-top:1pt solid #000000;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:1pt solid #000000;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%">September 30, 2020</span></td><td colspan="3" style="background-color:#00316c;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="9" style="background-color:#00316c;border-right:1pt solid #000000;border-top:1pt solid #000000;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, 2019</span></td></tr><tr><td colspan="3" style="background-color:#00316c;border-left:1pt solid #000000;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:1pt 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:1pt solid #ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#00316c;border-top:1pt 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:1pt 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:1pt solid #ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#00316c;border-right:1pt solid #000000;border-top:1pt 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:1pt solid #000000;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:1pt solid #000000;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:1pt solid #000000;padding:2px 1pt 2px 6.75pt;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%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">200,000</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</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%">64,833,447</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%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">100,000 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</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%">101,840,728 </span></td><td style="border-right:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#e5e5e5;border-left:1pt solid #000000;padding:2px 1pt 2px 6.75pt;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%">(200,000)</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:700;line-height:100%">(200,000)</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%">(100,000)</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%">(100,000)</span></td><td style="background-color:#e5e5e5;border-right:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;border-left:1pt solid #000000;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-bottom:3pt double #000000;border-top:1pt solid #000000;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%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;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%">64,633,447</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-bottom:3pt double #000000;border-top:1pt solid #000000;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-bottom:3pt double #000000;border-top:1pt solid #000000;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%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;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%">101,740,728 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-right:1pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr style="height:3pt"><td colspan="24" style="background-color:#ffffff;border-bottom:1pt solid #000000;border-left:1pt solid #000000;border-right:1pt solid #000000;padding:0 1pt"/></tr></table>
CY2020Q3	nly	Securities For Reverse Repurchase Agreements Gross Amounts SecuritiesForReverseRepurchaseAgreementsGrossAmounts	200000000	USD
CY2020Q3	nly	Securities Sold Under Agreements To Repurchase Gross Amounts SecuritiesSoldUnderAgreementsToRepurchaseGrossAmounts	64833447000	USD
CY2019Q4	nly	Securities For Reverse Repurchase Agreements Gross Amounts SecuritiesForReverseRepurchaseAgreementsGrossAmounts	100000000	USD
CY2019Q4	nly	Securities Sold Under Agreements To Repurchase Gross Amounts SecuritiesSoldUnderAgreementsToRepurchaseGrossAmounts	101840728000	USD
CY2020Q3	nly	Securities For Reverse Repurchase Agreements Amounts Offset SecuritiesForReverseRepurchaseAgreementsAmountsOffset	200000000	USD
CY2020Q3	nly	Securities Sold Under Agreements To Repurchase Amounts Offset SecuritiesSoldUnderAgreementsToRepurchaseAmountsOffset	200000000	USD
CY2019Q4	nly	Securities For Reverse Repurchase Agreements Amounts Offset SecuritiesForReverseRepurchaseAgreementsAmountsOffset	100000000	USD
CY2019Q4	nly	Securities Sold Under Agreements To Repurchase Amounts Offset SecuritiesSoldUnderAgreementsToRepurchaseAmountsOffset	100000000	USD
CY2020Q3	us-gaap	Securities For Reverse Repurchase Agreements SecuritiesForReverseRepurchaseAgreements	0	USD
CY2020Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	64633447000	USD
CY2019Q4	us-gaap	Securities For Reverse Repurchase Agreements SecuritiesForReverseRepurchaseAgreements	0	USD
CY2019Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	101740728000	USD
CY2020Q3	nly	Collateral Held On Repurchase Agreements After Effect Of Interest Rate Swaps Fair Value CollateralHeldOnRepurchaseAgreementsAfterEffectOfInterestRateSwapsFairValue	70600000000	USD
CY2020Q3	nly	Repurchase Agreements Accrued Interest RepurchaseAgreementsAccruedInterest	202700000	USD
CY2019Q4	nly	Collateral Held On Repurchase Agreements After Effect Of Interest Rate Swaps Fair Value CollateralHeldOnRepurchaseAgreementsAfterEffectOfInterestRateSwapsFairValue	112800000000	USD
CY2019Q4	nly	Repurchase Agreements Accrued Interest RepurchaseAgreementsAccruedInterest	357900000	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal Remainder Of Fiscal Year LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear	833000	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	13197000	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	20034000	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	28844000	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	107929000	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	342345000	USD
CY2020Q3	us-gaap	Long Term Debt LongTermDebt	513182000	USD
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2914850000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2914850000	shares
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	1402928317	shares
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1402928317	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1430106199	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	1430106199	shares
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	11300000	shares
CY2019Q3	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	1500000000	USD
CY2020Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	4800000	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	27700000	shares
CY2020Q3	nly	Saleof Stock Offering Price SaleofStockOfferingPrice	31300000	USD
	nly	Saleof Stock Offering Price SaleofStockOfferingPrice	174700000	USD
CY2019Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	18300000	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	18300000	shares
	nly	Saleof Stock Offering Price SaleofStockOfferingPrice	155000000.0	USD
CY2019Q3	nly	Saleof Stock Offering Price SaleofStockOfferingPrice	155000000.0	USD
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	154000	shares
	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	180000	shares
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	1075000	USD
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	1795000	USD
CY2020Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	85150000	shares
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	85150000	shares
CY2020Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	81900000	shares
CY2020Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	81900000	shares
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	81900000	shares
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	81900000	shares
CY2020Q3	us-gaap	Preferred Stock Value PreferredStockValue	1982026000	USD
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	1982026000	USD
CY2020Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Preferred Stock Redemption Price Per Share PreferredStockRedemptionPricePerShare	25.00
CY2020Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	309175000	USD
CY2019Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	359736000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	976966000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1158629000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.22
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.69
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.80
CY2020Q3	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	308644000	USD
CY2019Q3	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	359491000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	308644000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	359491000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.22
CY2019Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.25
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.22
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.25
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-294000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	1015674000	USD
CY2020Q3	nly	Interest Income Securities Mortgage Backed And Agency Debentures InterestIncomeSecuritiesMortgageBackedAndAgencyDebentures	439502000	USD
CY2019Q3	nly	Interest Income Securities Mortgage Backed And Agency Debentures InterestIncomeSecuritiesMortgageBackedAndAgencyDebentures	784228000	USD
	nly	Interest Income Securities Mortgage Backed And Agency Debentures InterestIncomeSecuritiesMortgageBackedAndAgencyDebentures	1307566000	USD
	nly	Interest Income Securities Mortgage Backed And Agency Debentures InterestIncomeSecuritiesMortgageBackedAndAgencyDebentures	2271893000	USD
CY2020Q3	nly	Interest Income Residential Mortgage Loans InterestIncomeResidentialMortgageLoans	42508000	USD
CY2019Q3	nly	Interest Income Residential Mortgage Loans InterestIncomeResidentialMortgageLoans	37673000	USD
	nly	Interest Income Residential Mortgage Loans InterestIncomeResidentialMortgageLoans	132936000	USD
	nly	Interest Income Residential Mortgage Loans InterestIncomeResidentialMortgageLoans	102689000	USD
CY2020Q3	nly	Interest Income Commercial Real Estate Debt And Preferred Equity InterestIncomeCommercialRealEstateDebtAndPreferredEquity	80324000	USD
CY2019Q3	nly	Interest Income Commercial Real Estate Debt And Preferred Equity InterestIncomeCommercialRealEstateDebtAndPreferredEquity	87946000	USD
	nly	Interest Income Commercial Real Estate Debt And Preferred Equity InterestIncomeCommercialRealEstateDebtAndPreferredEquity	260208000	USD
	nly	Interest Income Commercial Real Estate Debt And Preferred Equity InterestIncomeCommercialRealEstateDebtAndPreferredEquity	281029000	USD
CY2020Q3	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	109000	USD
CY2019Q3	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	9452000	USD
	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	1571000	USD
	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	57472000	USD
CY2020Q3	us-gaap	Interest Income Operating InterestIncomeOperating	562443000	USD
CY2019Q3	us-gaap	Interest Income Operating InterestIncomeOperating	919299000	USD
	us-gaap	Interest Income Operating InterestIncomeOperating	1702281000	USD
	us-gaap	Interest Income Operating InterestIncomeOperating	2713083000	USD
CY2020Q3	nly	Interest Paid On Repurchase Agreements InterestPaidOnRepurchaseAgreements	75386000	USD
CY2019Q3	nly	Interest Paid On Repurchase Agreements InterestPaidOnRepurchaseAgreements	699838000	USD
	nly	Interest Paid On Repurchase Agreements InterestPaidOnRepurchaseAgreements	646369000	USD
	nly	Interest Paid On Repurchase Agreements InterestPaidOnRepurchaseAgreements	1962999000	USD
CY2020Q3	nly	Interest Expense Securitized Debt Of Consolidated Vie InterestExpenseSecuritizedDebtOfConsolidatedVie	32491000	USD
CY2019Q3	nly	Interest Expense Securitized Debt Of Consolidated Vie InterestExpenseSecuritizedDebtOfConsolidatedVie	34524000	USD
	nly	Interest Expense Securitized Debt Of Consolidated Vie InterestExpenseSecuritizedDebtOfConsolidatedVie	113367000	USD
	nly	Interest Expense Securitized Debt Of Consolidated Vie InterestExpenseSecuritizedDebtOfConsolidatedVie	102882000	USD
CY2020Q3	us-gaap	Interest Expense Other InterestExpenseOther	7249000	USD
CY2019Q3	us-gaap	Interest Expense Other InterestExpenseOther	32543000	USD
	us-gaap	Interest Expense Other InterestExpenseOther	44895000	USD
	us-gaap	Interest Expense Other InterestExpenseOther	98936000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	115126000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	766905000	USD
	us-gaap	Interest Expense InterestExpense	804631000	USD
	us-gaap	Interest Expense InterestExpense	2164817000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	447317000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	152394000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	897650000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	548266000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	1015548000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	-747169000	USD
	us-gaap	Profit Loss ProfitLoss	-1768407000	USD
	us-gaap	Profit Loss ProfitLoss	-3372833000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-126000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-110000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-28000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-747059000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1768379000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-3372539000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	35509000	USD
CY2019Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	36151000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	106527000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	101067000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	980165000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-783210000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-1874906000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-3473606000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1404202695	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1453359211	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1419645475	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1436204582	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	165605	shares
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1404368300	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1453359211	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1419645475	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1436204582	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.54
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.32
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-2.42
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.54
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.32
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-2.42
CY2019Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	300000	USD
CY2020Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	500000	shares
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3862000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	2895000	USD
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	800000	shares
	nly	Percentage Of Taxable Income Required To Be Distributed While Operating As Reit PercentageOfTaxableIncomeRequiredToBeDistributedWhileOperatingAsReit	1
CY2020Q1	us-gaap	Temporary Equity Redemption Price Per Share TemporaryEquityRedemptionPricePerShare	1.00
CY2019Q1	nly	Stockholders Equity Amount Used In Determining Monthly Management Fee StockholdersEquityAmountUsedInDeterminingMonthlyManagementFee	17280000000	USD
CY2019Q1	nly	Monthly Management Fee Percentage Of Stockholders Equity Over A Predetermined Amount Used In Calculating Total Management Fee MonthlyManagementFeePercentageOfStockholdersEquityOverAPredeterminedAmountUsedInCalculatingTotalManagementFee	0.0075
CY2019Q1	nly	Stockholders Equity Amount Used In Determining Monthly Management Fee StockholdersEquityAmountUsedInDeterminingMonthlyManagementFee	17280000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	77900000	USD
CY2019Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	41200000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	130200000	USD
	nly	Operating Lease Remaining Lease Term OperatingLeaseRemainingLeaseTerm	P5Y
CY2020Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	900000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	2400000	USD
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	13831000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	18059000	USD
CY2020Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y10M24D
CY2020Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.029
	us-gaap	Operating Lease Payments OperatingLeasePayments	2797000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	1002000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	3918000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3862000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3862000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	19401000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1342000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	18059000	USD
CY2019Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	USD
CY2020Q3	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	USD

Files In Submission

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$NLY
ANNALY CAPITAL MANAGEMENT INC Stock $nly

2020 Q4 Form 10-Q Financial Statement

#000162828020015849 Filed on November 06, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NLY ANNALY CAPITAL MANAGEMENT INC Stock $nly

2020 Q4 Form 10-Q Financial Statement

#000162828020015849 Filed on November 06, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NLY
ANNALY CAPITAL MANAGEMENT INC Stock $nly