$NLY
ANNALY CAPITAL MANAGEMENT INC Stock $nly

$nly Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000162828021021871 Filed on November 05, 2021

Income Statement

Concept	2021 Q4	2021 Q3	2020 Q3
Revenue	$544.3M	$617.0M	$1.167B
YoY Change	-45.91%	-47.14%	1314.79%
Cost Of Revenue	$61.79M	$50.44M	$115.1M
YoY Change	-34.62%	-56.18%	-84.99%
Gross Profit	$482.5M	$566.5M	$1.052B
YoY Change	-47.08%	-46.15%	-253.73%
Gross Profit Margin	88.65%	91.82%	90.14%
Selling, General & Admin	$40.70M	$43.88M	$48.80M
YoY Change	-9.75%	-10.08%	-26.17%
% of Gross Profit	8.44%	7.75%	4.64%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$3.552M	$3.366M	$11.00M
YoY Change	-72.68%	-69.4%	57.14%
% of Gross Profit	0.74%	0.59%	1.05%
Operating Expenses	$40.90M	$37.75M	$26.90M
YoY Change	-12.05%	40.33%	-61.35%
Operating Profit	$441.6M	$528.8M	$1.025B
YoY Change	-48.96%	-48.42%	-235.97%
Interest Expense		$50.44M	$115.1M
YoY Change		-56.19%	-84.99%
% of Operating Profit		9.54%	11.23%
Other Income/Expense, Net		$16.22M	$3.714M
YoY Change		336.75%	-89.41%
Pretax Income	$425.1M	$514.8M	$1.025B
YoY Change	-50.86%	-49.79%	-235.96%
Income Tax	$6.629M	-$6.767M	$9.719M
% Of Pretax Income	1.56%	-1.31%	0.95%
Net Earnings	$415.5M	$519.2M	$1.016B
YoY Change	-52.64%	-48.88%	-235.96%
Net Earnings / Revenue	76.34%	84.16%	87.02%
Basic Earnings Per Share		$0.34	$0.70
Diluted Earnings Per Share	$285.4K	$0.34	$0.70
COMMON SHARES
Basic Shares Outstanding	1.450B shares	1.445B shares	1.404B shares
Diluted Shares Outstanding		1.446B shares	1.404B shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.342B	$1.046B	$1.240B
YoY Change	7.89%	-15.62%	-30.88%
Cash & Equivalents	$1.342B	$1.046B	$1.240B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$2.656M	$42.48M	$54.00M
Other Receivables	$235.0M	$234.8M	$281.0M
Total Short-Term Assets	$1.580B	$1.324B	$1.575B
YoY Change	3.39%	-15.96%	-36.26%
LONG-TERM ASSETS
Property, Plant & Equipment	$10.54M	$11.19M	$804.0M
YoY Change	-98.42%	-98.61%	8.36%
Goodwill	$0.00	$0.00	$71.80M
YoY Change	-100.0%	-100.0%	0.0%
Intangibles	$24.24M	$25.37M	$65.09M
YoY Change	-56.34%	-61.02%	181.89%
Long-Term Investments	$74.60B	$74.57B	$86.37B
YoY Change	-13.0%	-13.66%	-30.97%
Other Assets	$194.1M	$238.0M
YoY Change
Total Long-Term Assets	$75.18B	$75.34B	$87.62B
YoY Change	-13.51%	-14.01%	-30.73%
TOTAL ASSETS
Total Short-Term Assets	$1.580B	$1.324B	$1.575B
Total Long-Term Assets	$75.18B	$75.34B	$87.62B
Total Assets	$76.76B	$76.66B	$89.19B
YoY Change	-13.22%	-14.05%	-30.84%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$104.9M	$124.2M	$173.0M
YoY Change	-49.57%	-28.23%	-70.53%
Deferred Revenue
YoY Change
Short-Term Debt	$54.77B	$55.48B	$64.63B
YoY Change	-15.27%	-14.17%	-37.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$55.34B	$56.49B	$66.29B
YoY Change	-16.2%	-14.78%	-36.13%
LONG-TERM LIABILITIES
Long-Term Debt	$7.108B	$5.306B	$7.397B
YoY Change	-1.02%	-28.27%	-16.84%
Other Long-Term Liabilities	$1.117B	$1.148B	$1.309B
YoY Change	-7.75%	-12.26%	24.67%
Total Long-Term Liabilities	$8.225B	$6.454B	$8.706B
YoY Change	-1.99%	-25.86%	-12.46%
TOTAL LIABILITIES
Total Short-Term Liabilities	$55.34B	$56.49B	$66.29B
Total Long-Term Liabilities	$8.225B	$6.454B	$8.706B
Total Liabilities	$63.57B	$62.94B	$75.00B
YoY Change	-14.6%	-16.07%	-34.06%
SHAREHOLDERS EQUITY
Retained Earnings	-$9.654B	-$9.720B	-$11.20B
YoY Change	-9.5%	-13.22%	22.74%
Common Stock	$14.60M	$14.50M	$14.03M
YoY Change	4.4%	3.35%	-2.44%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$13.17B	$13.70B	$14.18B
YoY Change
Total Liabilities & Shareholders Equity	$76.76B	$76.66B	$89.19B
YoY Change	-13.22%	-14.05%	-30.84%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2020 Q3
OPERATING ACTIVITIES
Net Income	$415.5M	$519.2M	$1.016B
YoY Change	-52.64%	-48.88%	-235.96%
Depreciation, Depletion And Amortization	$3.552M	$3.366M	$11.00M
YoY Change	-72.68%	-69.4%	57.14%
Cash From Operating Activities	$861.6M	$644.2M	$1.000B
YoY Change	-0.74%	-35.58%	-241.04%
INVESTING ACTIVITIES
Capital Expenditures	-$57.40M	-$317.2M	-$5.000M
YoY Change	5640.0%	6243.32%	-97.22%
Acquisitions
YoY Change
Other Investing Activities	-$1.388B	$3.889B	$1.785B
YoY Change	-1018.96%	117.87%	-47.97%
Cash From Investing Activities	-$1.445B	$3.572B	$1.780B
YoY Change	-1063.35%	100.67%	-45.23%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	879.3M	-4.550B	-2.934B
YoY Change	-186.71%	55.09%	7.47%
NET CHANGE
Cash From Operating Activities	861.6M	644.2M	1.000B
Cash From Investing Activities	-1.445B	3.572B	1.780B
Cash From Financing Activities	879.3M	-4.550B	-2.934B
Net Change In Cash	295.8M	-334.2M	-154.0M
YoY Change	7294.75%	116.98%	-18.52%
FREE CASH FLOW
Cash From Operating Activities	$861.6M	$644.2M	$1.000B
Capital Expenditures	-$57.40M	-$317.2M	-$5.000M
Free Cash Flow	$919.0M	$961.4M	$1.005B
YoY Change	5.75%	-4.34%	-289.98%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201613Member
CY2020Q1	nly	Monthly Management Fee Percentage Of Stockholders Equity Up To A Predetermined Amount Used In Calculating Total Management Fee MonthlyManagementFeePercentageOfStockholdersEquityUpToAPredeterminedAmountUsedInCalculatingTotalManagementFee	0.000875
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0001043219
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssets
CY2021Q3	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilities
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	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	City Area Code CityAreaCode	212
	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
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	nly	Derivative Gain Losson Derivative Net Including Us Treasuries DerivativeGainLossonDerivativeNetIncludingUSTreasuries	546658000	USD
CY2021Q3	nly	Unrealized Gain Loss On Interest Only Mortgage Backed Securities Mbs UnrealizedGainLossOnInterestOnlyMortgageBackedSecuritiesMBS	90817000	USD
CY2020Q3	nly	Unrealized Gain Loss On Interest Only Mortgage Backed Securities Mbs UnrealizedGainLossOnInterestOnlyMortgageBackedSecuritiesMBS	121255000	USD
	nly	Unrealized Gain Loss On Interest Only Mortgage Backed Securities Mbs UnrealizedGainLossOnInterestOnlyMortgageBackedSecuritiesMBS	198992000	USD
	nly	Unrealized Gain Loss On Interest Only Mortgage Backed Securities Mbs UnrealizedGainLossOnInterestOnlyMortgageBackedSecuritiesMBS	-354133000	USD
CY2021Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-6134000	USD
CY2020Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-21993000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-145260000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	146084000	USD
CY2021Q3	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-14009000	USD
CY2020Q3	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-262045000	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2021Q3	nly	Nonoperating Income Expense Pre Derivative Instruments NonoperatingIncomeExpensePreDerivativeInstruments	49776000	USD
CY2020Q3	nly	Nonoperating Income Expense Pre Derivative Instruments NonoperatingIncomeExpensePreDerivativeInstruments	511452000	USD
	nly	Nonoperating Income Expense Pre Derivative Instruments NonoperatingIncomeExpensePreDerivativeInstruments	118538000	USD
	nly	Nonoperating Income Expense Pre Derivative Instruments NonoperatingIncomeExpensePreDerivativeInstruments	698591000	USD
CY2021Q3	us-gaap	Nonoperating Gains Losses NonoperatingGainsLosses	179894000	USD
CY2020Q3	us-gaap	Nonoperating Gains Losses NonoperatingGainsLosses	618823000	USD
	us-gaap	Nonoperating Gains Losses NonoperatingGainsLosses	717017000	USD
	us-gaap	Nonoperating Gains Losses NonoperatingGainsLosses	-2524967000	USD
CY2021Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	16221000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3714000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	31364000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	23204000	USD
CY2021Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	27859000	USD
CY2020Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	29196000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	91390000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	107057000	USD
CY2021Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	16023000	USD
CY2020Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	15391000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	53923000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	72165000	USD
CY2021Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	43882000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	44587000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	145313000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	179222000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	514767000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1025267000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1975866000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1783335000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-6767000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9719000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1954000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-14928000	USD
CY2021Q3	us-gaap	Profit Loss ProfitLoss	521534000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	1015548000	USD
	us-gaap	Profit Loss ProfitLoss	1977820000	USD
	us-gaap	Profit Loss ProfitLoss	-1768407000	USD
CY2021Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2290000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-126000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3405000	USD
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.32
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-28000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	519244000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	1015674000	USD
	us-gaap	Net Income Loss NetIncomeLoss	1974415000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1768379000	USD
CY2021Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	26883000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	35509000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	80649000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	106527000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	492361000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	980165000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1893766000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-1874906000	USD
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.34
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.32
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	2220271000	USD
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1445315914	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1404202695	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1418424208	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1419645475	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1446357867	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1404368300	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1419502205	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1419645475	shares
CY2021Q3	us-gaap	Profit Loss ProfitLoss	521534000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	1015548000	USD
	us-gaap	Profit Loss ProfitLoss	1977820000	USD
	us-gaap	Profit Loss ProfitLoss	-1768407000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-113451000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-140671000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1733919000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	28186000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	112347000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	1778000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	769406000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-141637000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-253018000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1735697000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1450865000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	379897000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	762530000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	242123000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-317542000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	2290000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-126000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	3405000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-28000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	377607000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	762656000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	238718000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-317514000	USD
CY2021Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	26883000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	35509000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	80649000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	106527000	USD
CY2021Q3	nly	Comprehensive Income Loss Attributable To Common Stock Holders ComprehensiveIncomeLossAttributableToCommonStockHolders	350724000	USD
CY2020Q3	nly	Comprehensive Income Loss Attributable To Common Stock Holders ComprehensiveIncomeLossAttributableToCommonStockHolders	727147000	USD
	nly	Comprehensive Income Loss Attributable To Common Stock Holders ComprehensiveIncomeLossAttributableToCommonStockHolders	158069000	USD
	nly	Comprehensive Income Loss Attributable To Common Stock Holders ComprehensiveIncomeLossAttributableToCommonStockHolders	-424041000	USD
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	13717867000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	14194672000	USD
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	13717867000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	14194672000	USD
	us-gaap	Profit Loss ProfitLoss	1977820000	USD
	us-gaap	Profit Loss ProfitLoss	-1768407000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-555659000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1130285000	USD
	nly	Amortization Of Securitized Debt Premiums And Discounts Net AmortizationOfSecuritizedDebtPremiumsAndDiscountsNet	4129000	USD
	nly	Amortization Of Securitized Debt Premiums And Discounts Net AmortizationOfSecuritizedDebtPremiumsAndDiscountsNet	7263000	USD
	nly	Depreciation Depletion And Amortization Excluding Amortization Of Debt Premiums And Discounts Deferred Financing Costs And Discounts Of Investments DepreciationDepletionAndAmortizationExcludingAmortizationOfDebtPremiumsAndDiscountsDeferredFinancingCostsAndDiscountsOfInvestments	21084000	USD
	nly	Depreciation Depletion And Amortization Excluding Amortization Of Debt Premiums And Discounts Deferred Financing Costs And Discounts Of Investments DepreciationDepletionAndAmortizationExcludingAmortizationOfDebtPremiumsAndDiscountsDeferredFinancingCostsAndDiscountsOfInvestments	28181000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-37561000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	652150000	USD
	nly	Gain Loss On Investments Debt And Derivatives GainLossOnInvestmentsDebtAndDerivatives	1088608000	USD
	nly	Gain Loss On Investments Debt And Derivatives GainLossOnInvestmentsDebtAndDerivatives	-2889963000	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	-262045000	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-5889000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2596000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-145260000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	146084000	USD
	nly	Payments For Purchase Of Loans Operating Activities PaymentsForPurchaseOfLoansOperatingActivities	51403000	USD
	nly	Payments For Purchase Of Loans Operating Activities PaymentsForPurchaseOfLoansOperatingActivities	120855000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	88050000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	139672000	USD
	nly	Payments For Proceeds From Derivative Instrument Operating Activities PaymentsForProceedsFromDerivativeInstrumentOperatingActivities	608184000	USD
	nly	Payments For Proceeds From Derivative Instrument Operating Activities PaymentsForProceedsFromDerivativeInstrumentOperatingActivities	-2210881000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-22441000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-291745000	USD
	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-34881000	USD
	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-148165000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-81183000	USD
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-320997000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-27750000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-30769000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2215281000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-339823000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	18334872000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	24970238000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	11146996000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	50295038000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	14638456000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	14392160000	USD
	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	4710425000	USD
	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables	1658578000	USD
	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	879147000	USD
	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	583040000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	2016373000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	1558859000	USD
	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	416149000	USD
	us-gaap	Payments To Acquire Mortgage Servicing Rights Msr PaymentsToAcquireMortgageServicingRightsMSR	0	USD
	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	376000	USD
	us-gaap	Proceeds From Sale Of Mortgage Servicing Rights Msr ProceedsFromSaleOfMortgageServicingRightsMSR	0	USD
	nly	Payments To Acquire Interest In Mortgage Servicing Rights PaymentsToAcquireInterestInMortgageServicingRights	53034000	USD
	nly	Payments To Acquire Interest In Mortgage Servicing Rights PaymentsToAcquireInterestInMortgageServicingRights	0	USD
	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	1815000	USD
	us-gaap	Payments To Acquire Commercial Real Estate PaymentsToAcquireCommercialRealEstate	6123000	USD
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	53910000	USD
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	0	USD
	us-gaap	Proceeds From Securities Purchased Under Agreements To Resell ProceedsFromSecuritiesPurchasedUnderAgreementsToResell	15184313000	USD
	us-gaap	Proceeds From Securities Purchased Under Agreements To Resell ProceedsFromSecuritiesPurchasedUnderAgreementsToResell	46100000000	USD
	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	15184313000	USD
	us-gaap	Payments For Securities Purchased Under Agreements To Resell PaymentsForSecuritiesPurchasedUnderAgreementsToResell	46100000000	USD
	nly	Proceeds From Unconsolidated Joint Venture Excess Of Cumulative Earnings ProceedsFromUnconsolidatedJointVentureExcessOfCumulativeEarnings	290000	USD
	nly	Proceeds From Unconsolidated Joint Venture Excess Of Cumulative Earnings ProceedsFromUnconsolidatedJointVentureExcessOfCumulativeEarnings	6641000	USD
	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	6957000	USD
	us-gaap	Proceeds From Sale Of Equity Securities Fv Ni ProceedsFromSaleOfEquitySecuritiesFvNi	0	USD
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	0	USD
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	1047000	USD
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	1118100000	USD
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	6344310000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	40201846000	USD
	nly	Proceeds From Repurchase Agreements ProceedsFromRepurchaseAgreements	1702497310000	USD
	nly	Proceeds From Repurchase Agreements ProceedsFromRepurchaseAgreements	2353694509000	USD
	nly	Principal Payments On Repurchase Agreements PrincipalPaymentsOnRepurchaseAgreements	1712035449000	USD
	nly	Principal Payments On Repurchase Agreements PrincipalPaymentsOnRepurchaseAgreements	2394417060000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	2005080000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	2385374000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	1270367000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	860306000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	553000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	469334000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1075000	USD
	nly	Proceeds From Participating Mortgage Loans ProceedsFromParticipatingMortgageLoans	1036800000	USD
	nly	Proceeds From Participating Mortgage Loans ProceedsFromParticipatingMortgageLoans	0	USD
	nly	Payments On Repurchase Of Participating Mortgage Loans PaymentsOnRepurchaseOfParticipatingMortgageLoans	434873000	USD
	nly	Payments On Repurchase Of Participating Mortgage Loans PaymentsOnRepurchaseOfParticipatingMortgageLoans	0	USD
	nly	Principal Payments On Participation Mortgage Loans Issued PrincipalPaymentsOnParticipationMortgageLoansIssued	10420000	USD
	nly	Principal Payments On Participation Mortgage Loans Issued PrincipalPaymentsOnParticipationMortgageLoansIssued	0	USD
	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	-1019000	USD
	us-gaap	Proceeds From Repayments Of Other Long Term Debt ProceedsFromRepaymentsOfOtherLongTermDebt	22550000	USD
	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	3180000	USD
	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	8167000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	175076000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2773000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	1013797000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	1131450000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-8756994000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-40472770000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-197403000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-610747000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1243703000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1850729000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1046300000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1239982000	USD
	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	2107854000	USD
	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	2926598000	USD
	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	51000	USD
	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	4485000	USD
	nly	Interest Paid Excluding Interest Paid On Interest Rate Swaps InterestPaidExcludingInterestPaidOnInterestRateSwaps	228875000	USD
	nly	Interest Paid Excluding Interest Paid On Interest Rate Swaps InterestPaidExcludingInterestPaidOnInterestRateSwaps	1050203000	USD
	nly	Interest Paid Net Interest Rate Derivative InterestPaidNetInterestRateDerivative	258061000	USD
	nly	Interest Paid Net Interest Rate Derivative InterestPaidNetInterestRateDerivative	290277000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	780000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1551000	USD
CY2021Q3	nly	Receivable For Investment Securities Sold ReceivableForInvestmentSecuritiesSold	42482000	USD
CY2020Q3	nly	Receivable For Investment Securities Sold ReceivableForInvestmentSecuritiesSold	54200000	USD
CY2021Q3	nly	Payable For Investment Securities Purchased PayableForInvestmentSecuritiesPurchased	571540000	USD
CY2020Q3	nly	Payable For Investment Securities Purchased PayableForInvestmentSecuritiesPurchased	1176001000	USD
	nly	Net Change In Unrealized Gain Loss On Availableforsale Securities And Interest Rate Swaps Net Of Reclassification Adjustment NetChangeInUnrealizedGainLossOnAvailableforsaleSecuritiesAndInterestRateSwapsNetOfReclassificationAdjustment	-1735697000	USD
	nly	Net Change In Unrealized Gain Loss On Availableforsale Securities And Interest Rate Swaps Net Of Reclassification Adjustment NetChangeInUnrealizedGainLossOnAvailableforsaleSecuritiesAndInterestRateSwapsNetOfReclassificationAdjustment	1450865000	USD
CY2021Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	318986000	USD
CY2020Q3	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	308644000	USD
	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Assets NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfAssets	3052280000	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 Securitized Debt NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfSecuritizedDebt	2496118000	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 Mortgage Payable NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfMortgagePayable	314485000	USD
	nly	Noncash Or Part Noncash Acquisition Variable Interest Entity Derecognition Of Mortgage Payable NoncashOrPartNoncashAcquisitionVariableInterestEntityDerecognitionOfMortgagePayable	0	USD
	us-gaap	Basis Of Accounting BasisOfAccounting	<div style="margin-bottom:6pt;text-align:justify"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.415%"><tr><td style="width:1.0%"/><td style="width:98.900%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="text-align:justify"><span style="color:#00316c;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:100%">2. BASIS OF PRESENTATION</span></div></td></tr><tr style="height:5pt"><td colspan="3" style="border-top:1pt solid #00316c;padding:0 1pt"/></tr></table></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The accompanying consolidated financial statements and related notes of the Company have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). </span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The 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, 2020 (the “2020 Form 10-K”). The consolidated financial information as of December 31, 2020 has been derived from audited consolidated financial statements included in the Company’s 2020 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%">Beginning with the quarter ended June 30, 2021, the Company began classifying certain portfolio activity- or volume-related expenses (including but not limited to brokerage and commission fees, due diligence costs and securitization expenses) as Other income (loss) rather than Other general and administrative expenses in the Consolidated Statements of Comprehensive Income (Loss) to better reflect the nature of the items. As such, prior periods have been conformed to the current presentation. Other general and administrative expenses for the three months ended March 31, 2021 decreased by $1.8 million and for the three and nine months ended September 30, 2020 decreased by $4.2 million and $14.9 million, respectively, and Other income (loss) decreased by the same amounts for the three months ended March 31, 2021 and the three and nine months ended September 30, 2020, respectively. </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 (as defined in the “Securities” Note), residential mortgage loans, commercial investments and reverse repurchase agreements. Interest accrued but not paid is recognized as Interest receivable on the Consolidated Statements of Financial Condition. Interest income is presented as a separate line item on the Consolidated Statements of Comprehensive Income. 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. Refer to the “Interest Income and Interest Expense” Note for further discussion on interest.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company has made an accounting policy election not to measure an allowance for loans losses for accrued interest receivable. If interest receivable is deemed to be uncollectible or not collected within 90 days of its contractual due date for commercial loans or 120 days for corporate debt carried at amortized cost, it is written off through a reversal of interest income. Any interest written off that is recovered is recognized as interest income.</span></div><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>
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	75652396000	USD
	nly	Paymentsto Acquire Debt Securities Availableforsale Excluding Variable Interest Entity PaymentstoAcquireDebtSecuritiesAvailableforsaleExcludingVariableInterestEntity	18000493000	USD
	nly	Proceedsfrom Saleof Debt Securities Availableforsale Excluding Variable Interest Entity ProceedsfromSaleofDebtSecuritiesAvailableforsaleExcludingVariableInterestEntity	11142414000	USD
	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	14639013000	USD
	nly	Accretion Amortization Of Debt Securities Available For Sale AccretionAmortizationOfDebtSecuritiesAvailableForSale	-541013000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-1708097000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	65622352000	USD
CY2021Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	65710241000	USD
CY2021Q3	nly	Debt Securities Availableforsale Remaining Premium DebtSecuritiesAvailableforsaleRemainingPremium	3864993000	USD
CY2021Q3	nly	Debt Securities Availableforsale Remaining Discount DebtSecuritiesAvailableforsaleRemainingDiscount	82277000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	64164022000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1915388000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	457058000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	65622352000	USD
CY2020Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	72253465000	USD
CY2020Q4	nly	Debt Securities Availableforsale Remaining Premium DebtSecuritiesAvailableforsaleRemainingPremium	3971492000	USD
CY2020Q4	nly	Debt Securities Availableforsale Remaining Discount DebtSecuritiesAvailableforsaleRemainingDiscount	95734000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	72487080000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	3332263000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	166947000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	75652396000	USD
CY2021Q3	nly	Mortgage Backed Securities Sold Carrying Value MortgageBackedSecuritiesSoldCarryingValue	4800000000	USD
	nly	Mortgage Backed Securities Sold Carrying Value MortgageBackedSecuritiesSoldCarryingValue	11100000000	USD
CY2020Q3	nly	Mortgage Backed Securities Sold Carrying Value MortgageBackedSecuritiesSoldCarryingValue	2800000000	USD
	nly	Mortgage Backed Securities Sold Carrying Value MortgageBackedSecuritiesSoldCarryingValue	50200000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	30368000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	3636000	USD
CY2021Q3	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	26732000	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
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	87499000	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	86657000	USD
	us-gaap	Gain Loss On Sales Of Mortgage Backed Securities Mbs GainLossOnSalesOfMortgageBackedSecuritiesMBS	842000	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	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 </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%">of the total expected credit loss over the expected life of the loan. In estimating the lifetime expected credit losses, management utilizes a probability of default and loss given default methodology (“Loss Given Default methodology”), which considers projected economic conditions over the reasonable and supportable forecast period. The forecast incorporates primarily market-based assumptions including, but not limited to, forward interest rate curves, unemployment rate estimates and certain indexes sourced from third party vendors. For any remaining period of the expected life of the loan after the reasonable and supportable period, the Company reverts to historical losses on a straight-line basis. Management uses third party vendors’ loan pool data for loans with similar risk characteristics to estimate historical losses given the limited loss history of the Company’s loan portfolio. Changes in the lifetime expected credit loss are reflected in Loan loss (provision) reversal in the Consolidated Statements of Comprehensive Income (Loss).</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">For loans experiencing credit deterioration, the Company may use a different methodology to determine the expected credit losses such as a discounted cash flow analysis. For collateral-dependent loans, if foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for any selling costs, if applicable. Additionally, the Company may elect the practical expedient for a financial asset for which the repayment is expected to be provided substantially through the operation or sale of the collateral when the borrower is experiencing financial difficulty by measuring the allowance as the difference between the fair value of the collateral, less costs to sell, if applicable, and the amortized cost basis of the financial asset at the reporting date. The Company’s commercial loans 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 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>
CY2021Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-6100000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-145300000	USD
CY2020Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-22000000	USD
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	146100000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	27700000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	169500000	USD
CY2021Q3	nly	Noncash Or Part Noncash Financial Instruments Owned And Pledged As Collateral NoncashOrPartNoncashFinancialInstrumentsOwnedAndPledgedAsCollateral	2000000000	USD
CY2021Q3	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	1890709000	USD
CY2020Q4	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	2239930000	USD
CY2021Q3	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	1890709000	USD
CY2020Q4	nly	Held To Maturity Securities Corporate Debt HeldToMaturitySecuritiesCorporateDebt	2239930000	USD
CY2021Q3	nly	Mortgage Servicing Rights Held For Sale MortgageServicingRightsHeldForSale	86200000	USD
CY2021Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	202616000	USD
CY2020Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	227400000	USD
CY2020Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	100895000	USD
CY2019Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	378078000	USD
CY2021Q3	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	312327000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	0	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	411309000	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	0	USD
CY2021Q3	us-gaap	Servicing Asset At Fair Value Disposals ServicingAssetAtFairValueDisposals	0	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Disposals ServicingAssetAtFairValueDisposals	0	USD
	us-gaap	Servicing Asset At Fair Value Disposals ServicingAssetAtFairValueDisposals	376000	USD
	us-gaap	Servicing Asset At Fair Value Disposals ServicingAssetAtFairValueDisposals	0	USD
CY2021Q3	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	76107000	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
	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	108403000	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
CY2021Q3	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	-18791000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	-27048000	USD
	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	-47972000	USD
	us-gaap	Servicing Asset At Fair Value Other Changes That Affect Balance ServicingAssetAtFairValueOtherChangesThatAffectBalance	-70873000	USD
CY2021Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	572259000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	207985000	USD
CY2021Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	572259000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	207985000	USD
CY2021Q3	us-gaap	Derivative Assets DerivativeAssets	331395000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	171134000	USD
CY2021Q3	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	754248000	USD
CY2020Q4	us-gaap	Interest Rate Derivative Liabilities At Fair Value InterestRateDerivativeLiabilitiesAtFairValue	1006492000	USD
CY2021Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	912134000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	1033345000	USD
CY2021Q3	nly	Gain Loss On Realized Interest Rate Swaps GainLossOnRealizedInterestRateSwaps	-54411000	USD
CY2021Q3	nly	Gain Loss On Termination Of Interest Rate Swaps GainLossOnTerminationOfInterestRateSwaps	-1196417000	USD
CY2021Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	1380946000	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
	nly	Gain Loss On Realized Interest Rate Swaps GainLossOnRealizedInterestRateSwaps	-217245000	USD
	nly	Gain Loss On Termination Of Interest Rate Swaps GainLossOnTerminationOfInterestRateSwaps	-1196417000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	2012141000	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
CY2021Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-45168000	USD
CY2020Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	169316000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	72731000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	546658000	USD
CY2021Q3	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	612700000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	0	USD
CY2020Q4	us-gaap	Goodwill Goodwill	71800000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	55526000	USD
	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	9549000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6078000	USD
CY2021Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	25371000	USD
CY2021Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	55500000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	64800000000	USD
	us-gaap	Repurchase Agreement Counterparty Weighted Average Maturity Of Agreements1 RepurchaseAgreementCounterpartyWeightedAverageMaturityOfAgreements1	P75D
CY2020	us-gaap	Repurchase Agreement Counterparty Weighted Average Maturity Of Agreements1 RepurchaseAgreementCounterpartyWeightedAverageMaturityOfAgreements1	P64D
CY2021Q3	nly	Securities Soldunder Agreementsto Repurchase Maximum Available Under Counterparty Arrangements SecuritiesSoldunderAgreementstoRepurchaseMaximumAvailableUnderCounterpartyArrangements	1600000000	USD
CY2021Q3	nly	Securities Soldunder Agreementsto Repurchase Commitments Available SecuritiesSoldunderAgreementstoRepurchaseCommitmentsAvailable	1300000000	USD
CY2021Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	55475420000	USD
CY2021Q3	nly	Repurchase Agreements Weighted Average Rates RepurchaseAgreementsWeightedAverageRates	0.0015
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	64825239000	USD
CY2020Q4	nly	Repurchase Agreements Weighted Average Rates RepurchaseAgreementsWeightedAverageRates	0.0032
CY2021Q3	nly	Repurchase Agreements Maturity Greater Than One Year Percentage RepurchaseAgreementsMaturityGreaterThanOneYearPercentage	0
CY2020	nly	Percent Of Total Repurchase Agreements With Remaining Maturity Over1 Year PercentOfTotalRepurchaseAgreementsWithRemainingMaturityOver1Year	0.01
	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table summarizes the gross amounts of reverse repurchase agreements and repurchase agreements, amounts offset in accordance with netting arrangements and net amounts of repurchase agreements and reverse repurchase agreements as presented in the Consolidated Statements of Financial Condition at September 30, 2021 and December 31, 2020. Refer to the “Derivative Instruments” Note for information related to the effect of netting arrangements on the Company’s derivative instruments.</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:89.473%"><tr><td style="width:1.0%"/><td style="width:25.860%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.547%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.616%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.547%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.616%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.547%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.616%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.551%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="background-color:#00316c;border-left:0.5pt solid #000000;border-top:0.5pt 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:0.5pt 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, 2021</span></td><td colspan="3" style="background-color:#00316c;border-top:0.5pt solid #000000;padding:0 1pt"/><td colspan="9" style="background-color:#00316c;border-right:0.5pt solid #000000;border-top:0.5pt 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, 2020</span></td></tr><tr><td colspan="3" style="background-color:#00316c;border-left:0.5pt 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:0.5pt solid #ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Reverse Repurchase Agreements</span></td><td colspan="3" style="background-color:#00316c;border-top:0.5pt solid #ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#00316c;border-top:0.5pt solid #ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Repurchase Agreements</span></td><td colspan="3" style="background-color:#00316c;padding:0 1pt"/><td colspan="3" style="background-color:#00316c;border-top:0.5pt solid #ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Reverse Repurchase Agreements</span></td><td colspan="3" style="background-color:#00316c;border-top:0.5pt solid #ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#00316c;border-right:0.5pt solid #000000;border-top:0.5pt solid #ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#ffffff;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Repurchase Agreements</span></td></tr><tr><td colspan="3" style="background-color:#7d91a6;border-left:0.5pt solid #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:0.5pt 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:0.5pt solid #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Gross amounts</span></td><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">55,475,420</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">250,000 </span></td><td style="padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="padding:0 1pt"/><td style="padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">65,075,239 </span></td><td style="border-right:0.5pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#e5e5e5;border-left:0.5pt solid #000000;padding:2px 1pt 2px 7.75pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Amounts offset</span></td><td colspan="2" style="background-color:#e5e5e5;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#e5e5e5;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#e5e5e5;padding:0 1pt"/><td colspan="2" style="background-color:#e5e5e5;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#e5e5e5;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#e5e5e5;padding:0 1pt"/><td colspan="2" style="background-color:#e5e5e5;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(250,000)</span></td><td style="background-color:#e5e5e5;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#e5e5e5;padding:0 1pt"/><td colspan="2" style="background-color:#e5e5e5;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(250,000)</span></td><td style="background-color:#e5e5e5;border-right:0.5pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;border-left:0.5pt solid #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:0.5pt 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:0.5pt 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:0.5pt 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:0.5pt 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%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:0.5pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">55,475,420</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:0.5pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:0.5pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:0.5pt 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:0.5pt 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:0.5pt 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:0.5pt 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%">64,825,239 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-right:0.5pt solid #000000;border-top:0.5pt 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:0.5pt solid #000000;border-left:0.5pt solid #000000;border-right:0.5pt solid #000000;padding:0 1pt"/></tr></table></div>
CY2021Q3	nly	Securities For Reverse Repurchase Agreements Gross Amounts SecuritiesForReverseRepurchaseAgreementsGrossAmounts	0	USD
CY2021Q3	nly	Securities Sold Under Agreements To Repurchase Gross Amounts SecuritiesSoldUnderAgreementsToRepurchaseGrossAmounts	55475420000	USD
CY2020Q4	nly	Securities For Reverse Repurchase Agreements Gross Amounts SecuritiesForReverseRepurchaseAgreementsGrossAmounts	250000000	USD
CY2020Q4	nly	Securities Sold Under Agreements To Repurchase Gross Amounts SecuritiesSoldUnderAgreementsToRepurchaseGrossAmounts	65075239000	USD
CY2021Q3	nly	Securities For Reverse Repurchase Agreements Amounts Offset SecuritiesForReverseRepurchaseAgreementsAmountsOffset	0	USD
CY2021Q3	nly	Securities Sold Under Agreements To Repurchase Amounts Offset SecuritiesSoldUnderAgreementsToRepurchaseAmountsOffset	0	USD
CY2020Q4	nly	Securities For Reverse Repurchase Agreements Amounts Offset SecuritiesForReverseRepurchaseAgreementsAmountsOffset	250000000	USD
CY2020Q4	nly	Securities Sold Under Agreements To Repurchase Amounts Offset SecuritiesSoldUnderAgreementsToRepurchaseAmountsOffset	250000000	USD
CY2021Q3	us-gaap	Securities For Reverse Repurchase Agreements SecuritiesForReverseRepurchaseAgreements	0	USD
CY2021Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
CY2021Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	55475420000	USD
CY2020Q4	us-gaap	Securities For Reverse Repurchase Agreements SecuritiesForReverseRepurchaseAgreements	0	USD
CY2021Q3	nly	Repurchase Agreements Accrued Interest RepurchaseAgreementsAccruedInterest	163200000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	64825239000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell Fair Value Of Collateral SecuritiesPurchasedUnderAgreementsToResellFairValueOfCollateral	250000000	USD
CY2021Q3	nly	Collateral Held On Repurchase Agreements After Effect Of Interest Rate Swaps Fair Value CollateralHeldOnRepurchaseAgreementsAfterEffectOfInterestRateSwapsFairValue	60300000000	USD
CY2020Q4	nly	Collateral Held On Repurchase Agreements After Effect Of Interest Rate Swaps Fair Value CollateralHeldOnRepurchaseAgreementsAfterEffectOfInterestRateSwapsFairValue	70600000000	USD
CY2020Q4	nly	Repurchase Agreements Accrued Interest RepurchaseAgreementsAccruedInterest	196900000	USD
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2936500000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	2914850000	shares
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1449935017	shares
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	1449935017	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	1398240618	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1398240618	shares
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q2	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	1500000000	USD
CY2020Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	1500000000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
CY2020Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	4800000	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	27700000	shares
CY2020Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	31300000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	174700000	USD
CY2021Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	63500000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	85150000	shares
CY2021Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	63500000	shares
CY2021Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	63500000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	63500000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	63500000	shares
CY2021Q3	us-gaap	Preferred Stock Value PreferredStockValue	1536569000	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	1536569000	USD
CY2021Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q3	us-gaap	Preferred Stock Redemption Price Per Share PreferredStockRedemptionPricePerShare	25.00
CY2021Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	319768000	USD
CY2020Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	309175000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	946648000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	976966000	USD
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.22
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.22
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.66
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.69
CY2021Q3	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	318986000	USD
CY2020Q3	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	308644000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	318986000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	308644000	USD
CY2021Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.22
CY2020Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.22
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.22
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.22
CY2021Q3	nly	Interest Income Agency Security Loans InterestIncomeAgencySecurityLoans	299898000	USD
CY2020Q3	nly	Interest Income Agency Security Loans InterestIncomeAgencySecurityLoans	428088000	USD
	nly	Interest Income Agency Security Loans InterestIncomeAgencySecurityLoans	1183353000	USD
	nly	Interest Income Agency Security Loans InterestIncomeAgencySecurityLoans	1264171000	USD
CY2021Q3	nly	Interest Income Securities Mortgage Backed And Agency Debentures InterestIncomeSecuritiesMortgageBackedAndAgencyDebentures	20774000	USD
CY2020Q3	nly	Interest Income Securities Mortgage Backed And Agency Debentures InterestIncomeSecuritiesMortgageBackedAndAgencyDebentures	11414000	USD
	nly	Interest Income Securities Mortgage Backed And Agency Debentures InterestIncomeSecuritiesMortgageBackedAndAgencyDebentures	57231000	USD
	nly	Interest Income Securities Mortgage Backed And Agency Debentures InterestIncomeSecuritiesMortgageBackedAndAgencyDebentures	43395000	USD
CY2021Q3	nly	Interest Income Residential Mortgage Loans InterestIncomeResidentialMortgageLoans	45801000	USD
CY2020Q3	nly	Interest Income Residential Mortgage Loans InterestIncomeResidentialMortgageLoans	42508000	USD
	nly	Interest Income Residential Mortgage Loans InterestIncomeResidentialMortgageLoans	121873000	USD
	nly	Interest Income Residential Mortgage Loans InterestIncomeResidentialMortgageLoans	132936000	USD
CY2021Q3	nly	Interest Income Commercial Real Estate Debt And Preferred Equity InterestIncomeCommercialRealEstateDebtAndPreferredEquity	46494000	USD
CY2020Q3	nly	Interest Income Commercial Real Estate Debt And Preferred Equity InterestIncomeCommercialRealEstateDebtAndPreferredEquity	80324000	USD
	nly	Interest Income Commercial Real Estate Debt And Preferred Equity InterestIncomeCommercialRealEstateDebtAndPreferredEquity	197758000	USD
	nly	Interest Income Commercial Real Estate Debt And Preferred Equity InterestIncomeCommercialRealEstateDebtAndPreferredEquity	260208000	USD
CY2021Q3	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	5000	USD
CY2020Q3	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	109000	USD
	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	41000	USD
	us-gaap	Interest Income Securities Purchased Under Agreements To Resell InterestIncomeSecuritiesPurchasedUnderAgreementsToResell	1571000	USD
CY2021Q3	us-gaap	Interest Income Operating InterestIncomeOperating	412972000	USD
CY2020Q3	us-gaap	Interest Income Operating InterestIncomeOperating	562443000	USD
	us-gaap	Interest Income Operating InterestIncomeOperating	1560256000	USD
	us-gaap	Interest Income Operating InterestIncomeOperating	1702281000	USD
CY2021Q3	nly	Interest Paid On Repurchase Agreements InterestPaidOnRepurchaseAgreements	22397000	USD
CY2020Q3	nly	Interest Paid On Repurchase Agreements InterestPaidOnRepurchaseAgreements	75386000	USD
	nly	Interest Paid On Repurchase Agreements InterestPaidOnRepurchaseAgreements	94122000	USD
	nly	Interest Paid On Repurchase Agreements InterestPaidOnRepurchaseAgreements	646369000	USD
CY2021Q3	nly	Interest Expense Securitized Debt Of Consolidated Vie InterestExpenseSecuritizedDebtOfConsolidatedVie	18740000	USD
CY2020Q3	nly	Interest Expense Securitized Debt Of Consolidated Vie InterestExpenseSecuritizedDebtOfConsolidatedVie	32491000	USD
	nly	Interest Expense Securitized Debt Of Consolidated Vie InterestExpenseSecuritizedDebtOfConsolidatedVie	68232000	USD
	nly	Interest Expense Securitized Debt Of Consolidated Vie InterestExpenseSecuritizedDebtOfConsolidatedVie	113367000	USD
CY2021Q3	nly	Interest Expense Participation Sold InterestExpenseParticipationSold	2578000	USD
CY2020Q3	nly	Interest Expense Participation Sold InterestExpenseParticipationSold	0	USD
	nly	Interest Expense Participation Sold InterestExpenseParticipationSold	4914000	USD
	nly	Interest Expense Participation Sold InterestExpenseParticipationSold	0	USD
CY2021Q3	us-gaap	Interest Expense Other InterestExpenseOther	6723000	USD
CY2020Q3	us-gaap	Interest Expense Other InterestExpenseOther	7249000	USD
	us-gaap	Interest Expense Other InterestExpenseOther	20190000	USD
	us-gaap	Interest Expense Other InterestExpenseOther	44895000	USD
CY2021Q3	us-gaap	Interest Expense InterestExpense	50438000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	115126000	USD
	us-gaap	Interest Expense InterestExpense	187458000	USD
	us-gaap	Interest Expense InterestExpense	804631000	USD
CY2021Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	362534000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	447317000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1372798000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	897650000	USD
CY2021Q3	us-gaap	Profit Loss ProfitLoss	521534000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	1015548000	USD
	us-gaap	Profit Loss ProfitLoss	1977820000	USD
	us-gaap	Profit Loss ProfitLoss	-1768407000	USD
CY2021Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	2290000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-126000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3405000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-28000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	519244000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	1015674000	USD
	us-gaap	Net Income Loss NetIncomeLoss	1974415000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1768379000	USD
CY2021Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	26883000	USD
CY2020Q3	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	35509000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	80649000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	106527000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	492361000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	980165000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1893766000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-1874906000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1445315914	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1404202695	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1418424208	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	1419645475	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1041953	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	165605	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1077997	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1446357867	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1404368300	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1419502205	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	1419645475	shares
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.70
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.34
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.32
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.32
CY2020Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	500000	shares
	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
CY2020Q1	nly	Stockholders Equity Amount Used In Determining Monthly Management Fee StockholdersEquityAmountUsedInDeterminingMonthlyManagementFee	17280000000	USD
CY2020Q1	nly	Monthly Management Fee Percentage Of Stockholders Equity Over A Predetermined Amount Used In Calculating Total Management Fee MonthlyManagementFeePercentageOfStockholdersEquityOverAPredeterminedAmountUsedInCalculatingTotalManagementFee	0.0075
CY2020Q1	nly	Stockholders Equity Amount Used In Determining Monthly Management Fee StockholdersEquityAmountUsedInDeterminingMonthlyManagementFee	17280000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	77900000	USD
	nly	Operating Lease Remaining Lease Term OperatingLeaseRemainingLeaseTerm	P4Y
CY2021Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P5Y
CY2021Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	800000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	2500000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	11194000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	14576000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.029
	us-gaap	Operating Lease Payments OperatingLeasePayments	2953000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	965000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	3862000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	3862000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3862000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2895000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	15446000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	870000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	14576000	USD
CY2021Q3	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	USD
CY2020Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	USD
CY2021Q3	us-gaap	Other Secured Financings OtherSecuredFinancings	729555000	USD
CY2021Q3	us-gaap	Participating Mortgage Loans Participation Liabilities Amount ParticipatingMortgageLoansParticipationLiabilitiesAmount	641006000	USD

Files In Submission

Name	View Source	Status
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$NLY
ANNALY CAPITAL MANAGEMENT INC Stock $nly

2021 Q4 Form 10-Q Financial Statement

#000162828021021871 Filed on November 05, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NLY ANNALY CAPITAL MANAGEMENT INC Stock $nly

2021 Q4 Form 10-Q Financial Statement

#000162828021021871 Filed on November 05, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NLY
ANNALY CAPITAL MANAGEMENT INC Stock $nly