$RWT
REDWOOD TRUST INC Stock $rwt

$rwt Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000093023621000032 Filed on November 04, 2021

Income Statement

Concept	2021 Q4	2021 Q3	2020 Q3
Revenue	$162.2M	$145.7M	$122.0M
YoY Change	33.06%	19.46%	-18.74%
Cost Of Revenue	$112.4M	$103.8M	$100.4M
YoY Change	14.32%	3.34%	-13.89%
Gross Profit	$49.83M	$41.97M	$21.60M
YoY Change	110.24%	94.3%	-35.52%
Gross Profit Margin	30.72%	28.8%	17.71%
Selling, General & Admin	$84.58M	$22.57M	$24.20M
YoY Change	215.6%	-6.74%	4.31%
% of Gross Profit	169.75%	53.78%	112.04%
Research & Development		$2.975M	$2.145M
YoY Change		38.69%	-33.59%
% of Gross Profit		7.09%	9.93%
Depreciation & Amortization	$4.110M	$4.269M	$4.200M
YoY Change	-2.14%	1.64%	-16.0%
% of Gross Profit	8.25%	10.17%	19.44%
Operating Expenses	$4.197M	$56.34M	$37.58M
YoY Change	-120.37%	49.93%	28.04%
Operating Profit	$45.63M	-$14.37M	-$15.98M
YoY Change	3.0%	-10.07%	-484.59%
Interest Expense	$7.595M	$103.8M	$100.4M
YoY Change	-67.12%	3.33%	-13.89%
% of Operating Profit	16.65%
Other Income/Expense, Net		$4.023M	$7.788M
YoY Change		-48.34%	207.7%
Pretax Income	$48.62M	$83.96M	$150.9M
YoY Change	-22.59%	-44.37%	341.35%
Income Tax	$4.571M	-$4.323M	$9.113M
% Of Pretax Income	9.4%	-5.15%	6.04%
Net Earnings	$44.05M	$88.29M	$141.8M
YoY Change	-18.89%	-37.74%	313.33%
Net Earnings / Revenue	27.15%	60.59%	116.26%
Basic Earnings Per Share		$0.75	$1.21
Diluted Earnings Per Share	$306.8K	$0.65	$1.02
COMMON SHARES
Basic Shares Outstanding	114.7M shares	113.0M shares	113.4M shares
Diluted Shares Outstanding		141.9M shares	142.0M shares

Balance Sheet

Concept	2021 Q4	2021 Q3	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$827.4M	$910.3M	$802.3M
YoY Change	2.77%	13.45%	-52.25%
Cash & Equivalents	$450.0M	$557.0M	$451.0M
Short-Term Investments	$377.4M	$353.3M	$351.3M
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$588.1M	$647.9M	$528.0M
YoY Change	7.31%	22.71%	-16.98%
LONG-TERM ASSETS
Property, Plant & Equipment	$9.019M	$9.344M	$4.408M
YoY Change	114.58%	111.98%	-8.05%
Goodwill	$0.00
YoY Change
Intangibles	$41.56M
YoY Change
Long-Term Investments	$1.019B	$775.7M	$736.0M
YoY Change	47.31%	5.39%	-54.93%
Other Assets	$101.9M	$108.9M	$74.00M
YoY Change	22.73%	47.12%	-33.93%
Total Long-Term Assets	$14.12B	$12.42B	$9.874B
YoY Change	43.97%	25.83%	-33.46%
TOTAL ASSETS
Total Short-Term Assets	$588.1M	$647.9M	$528.0M
Total Long-Term Assets	$14.12B	$12.42B	$9.874B
Total Assets	$14.71B	$13.07B	$10.40B
YoY Change	42.03%	25.67%	-32.78%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$8.273M		$8.717M
YoY Change	-43.25%
Accrued Expenses	$181.9M	$150.5M	$111.0M
YoY Change	49.13%	35.6%	9.9%
Deferred Revenue
YoY Change
Short-Term Debt	$2.177B	$1.751B	$482.8M
YoY Change	316.63%	262.69%	-75.63%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$2.360B	$1.913B	$594.0M
YoY Change	265.9%	222.02%	-71.47%
LONG-TERM LIABILITIES
Long-Term Debt	$10.89B	$9.683B	$8.709B
YoY Change	27.78%	11.19%	-22.93%
Other Long-Term Liabilities	$66.44M	$100.7M	$41.00M
YoY Change	12.61%	145.59%	-86.2%
Total Long-Term Liabilities	$10.96B	$9.784B	$8.750B
YoY Change	27.67%	11.82%	-24.55%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.360B	$1.913B	$594.0M
Total Long-Term Liabilities	$10.96B	$9.784B	$8.750B
Total Liabilities	$13.32B	$11.70B	$9.349B
YoY Change	44.1%	25.11%	-31.72%
SHAREHOLDERS EQUITY
Retained Earnings	$1.317B	$1.273B	$943.0M
YoY Change	32.05%	34.98%	-38.37%
Common Stock	$2.318B	$2.313B	$2.263B
YoY Change	2.29%	2.23%	0.76%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.386B	$1.376B	$1.053B
YoY Change
Total Liabilities & Shareholders Equity	$14.71B	$13.07B	$10.40B
YoY Change	42.03%	25.67%	-32.78%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2020 Q3
OPERATING ACTIVITIES
Net Income	$44.05M	$88.29M	$141.8M
YoY Change	-18.89%	-37.74%	313.33%
Depreciation, Depletion And Amortization	$4.110M	$4.269M	$4.200M
YoY Change	-2.14%	1.64%	-16.0%
Cash From Operating Activities	-$1.914B	-$1.128B	-$231.5M
YoY Change	480.79%	387.33%	-63.99%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	$41.08M	$293.2M	$454.1M
YoY Change	-92.61%	-35.44%	8.58%
Cash From Investing Activities	$41.08M	$293.2M	$454.1M
YoY Change	-92.61%	-35.44%	8.58%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	1.759B	1.004B	-271.5M
YoY Change	-953.46%	-469.96%	-156.72%
NET CHANGE
Cash From Operating Activities	-1.914B	-1.128B	-231.5M
Cash From Investing Activities	41.08M	293.2M	454.1M
Cash From Financing Activities	1.759B	1.004B	-271.5M
Net Change In Cash	-114.2M	169.4M	-48.90M
YoY Change	-665.46%	-446.49%	-119.24%
FREE CASH FLOW
Cash From Operating Activities	-$1.914B	-$1.128B	-$231.5M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0000930236
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021Q3	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
	us-gaap	Income Taxes Paid IncomeTaxesPaid	28092000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	218000	USD
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
	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	1-13759
	dei	Entity Registrant Name EntityRegistrantName	REDWOOD TRUST, INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	68-0329422
	dei	Entity Address Address Line1 EntityAddressAddressLine1	One Belvedere Place,
	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 300
	dei	Entity Address City Or Town EntityAddressCityOrTown	Mill Valley,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	94941
	dei	City Area Code CityAreaCode	415
	dei	Local Phone Number LocalPhoneNumber	389-7373
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
	dei	Security12b Title Security12bTitle	Common stock, par value $0.01 per share
	dei	Trading Symbol TradingSymbol	RWT
	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2021Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	114674962	shares
CY2021Q3	us-gaap	Marketable Securities MarketableSecurities	353286000	USD
CY2020Q4	us-gaap	Marketable Securities MarketableSecurities	344125000	USD
CY2021Q3	us-gaap	Other Investments OtherInvestments	422366000	USD
CY2020Q4	us-gaap	Other Investments OtherInvestments	348175000	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	556989000	USD
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CY2021Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	88717000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	83190000	USD
CY2021Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	45246000	USD
CY2020Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	56865000	USD
CY2021Q3	us-gaap	Derivative Assets DerivativeAssets	51103000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	53238000	USD
CY2021Q3	us-gaap	Other Assets OtherAssets	162193000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	130588000	USD
CY2021Q3	us-gaap	Assets Assets	13072714000	USD
CY2020Q4	us-gaap	Assets Assets	10355066000	USD
CY2021Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	1750941000	USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	522609000	USD
CY2021Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	10972000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	16072000	USD
CY2021Q3	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	251576000	USD
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CY2021Q3	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	7756101000	USD
CY2020Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	6900362000	USD
CY2021Q3	us-gaap	Secured Debt SecuredDebt	8183825000	USD
CY2020Q4	us-gaap	Secured Debt SecuredDebt	7100661000	USD
CY2021Q3	us-gaap	Other Long Term Debt OtherLongTermDebt	1499577000	USD
CY2020Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	1425485000	USD
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CY2020Q4	us-gaap	Liabilities Liabilities	9244167000	USD
CY2021Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	395000000	shares
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CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	114661762	shares
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	114661762	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	112090006	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	112090006	shares
CY2021Q3	us-gaap	Common Stock Value CommonStockValue	1147000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	1121000	USD
CY2021Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2312272000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2264874000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1923000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-4221000	USD
CY2021Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1272845000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	997277000	USD
CY2021Q3	us-gaap	Cumulative Dividends CumulativeDividends	2212364000	USD
CY2020Q4	us-gaap	Cumulative Dividends CumulativeDividends	2148152000	USD
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1375823000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1110899000	USD
CY2021Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13072714000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10355066000	USD
CY2021Q3	us-gaap	Interest And Fee Income Loans Consumer Real Estate InterestAndFeeIncomeLoansConsumerRealEstate	53993000	USD
CY2020Q3	us-gaap	Interest And Fee Income Loans Consumer Real Estate InterestAndFeeIncomeLoansConsumerRealEstate	44921000	USD
	us-gaap	Interest And Fee Income Loans Consumer Real Estate InterestAndFeeIncomeLoansConsumerRealEstate	146081000	USD
	us-gaap	Interest And Fee Income Loans Consumer Real Estate InterestAndFeeIncomeLoansConsumerRealEstate	179331000	USD
CY2021Q3	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	67129000	USD
CY2020Q3	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	55637000	USD
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CY2021Q3	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	4846000	USD
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	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	33184000	USD
	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	38471000	USD
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CY2020Q3	us-gaap	Interest Income Other InterestIncomeOther	6371000	USD
	us-gaap	Interest Income Other InterestIncomeOther	17325000	USD
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	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	45119000	USD
	us-gaap	Interest Income Other InterestIncomeOther	20537000	USD
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CY2020Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	121982000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	412722000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	450009000	USD
CY2021Q3	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	11826000	USD
CY2021Q3	us-gaap	Interest Expense Beneficial Interests Issued By Consolidated Variable Interest Entities InterestExpenseBeneficialInterestsIssuedByConsolidatedVariableInterestEntities	73732000	USD
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	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	72313000	USD
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	us-gaap	Interest Expense InterestExpense	314371000	USD
	us-gaap	Interest Expense InterestExpense	349748000	USD
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CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	21571000	USD
CY2021Q3	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	63163000	USD
CY2020Q3	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	59395000	USD
	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	200189000	USD
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	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	120644000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-611557000	USD
CY2021Q3	us-gaap	Other Income OtherIncome	2388000	USD
CY2020Q3	us-gaap	Other Income OtherIncome	-114000	USD
	us-gaap	Other Income OtherIncome	8357000	USD
	us-gaap	Other Income OtherIncome	3979000	USD
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	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	17803000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	30419000	USD
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	us-gaap	Noninterest Income NoninterestIncome	346993000	USD
	us-gaap	Noninterest Income NoninterestIncome	-552648000	USD
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	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	131837000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	84832000	USD
CY2021Q3	rwt	Loan Acquisition Costs LoanAcquisitionCosts	4621000	USD
CY2020Q3	rwt	Loan Acquisition Costs LoanAcquisitionCosts	2158000	USD
	rwt	Loan Acquisition Costs LoanAcquisitionCosts	11928000	USD
	rwt	Loan Acquisition Costs LoanAcquisitionCosts	7716000	USD
CY2021Q3	us-gaap	Other Expenses OtherExpenses	4023000	USD
CY2020Q3	us-gaap	Other Expenses OtherExpenses	7788000	USD
	us-gaap	Other Expenses OtherExpenses	12104000	USD
	us-gaap	Other Expenses OtherExpenses	104286000	USD
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CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	150925000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	289475000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-649221000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-4323000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9113000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13907000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-13079000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	88286000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	141812000	USD
	us-gaap	Net Income Loss NetIncomeLoss	275568000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.21
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.36
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-5.60
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.02
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.03
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-5.60
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	112995847	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	113403102	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	112754691	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	113952308	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	141855471	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	141969977	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	141575385	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	113952308	shares
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	88286000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	141812000	USD
	us-gaap	Net Income Loss NetIncomeLoss	275568000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2658000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	8236000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	19552000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-19890000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	6200000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	445000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	16495000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	11525000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	0	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	0	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-32806000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1041000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1040000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-3087000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-2148000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7817000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8831000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	6144000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-62073000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	80469000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	150643000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	281712000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-698215000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	1295142000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	88286000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-7817000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	19826000	USD
CY2021Q3	rwt	Stock Issued During Period Value Employee Stock Purchase Plans And Other Incentive Plans StockIssuedDuringPeriodValueEmployeeStockPurchasePlansAndOtherIncentivePlans	153000	USD
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4897000	USD
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.21
CY2021Q3	us-gaap	Dividends Common Stock DividendsCommonStock	24664000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1375823000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1110899000	USD
	us-gaap	Net Income Loss NetIncomeLoss	275568000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	6144000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	33200000	USD
	rwt	Stock Issued During Period Value Employee Stock Purchase Plans And Other Incentive Plans StockIssuedDuringPeriodValueEmployeeStockPurchasePlansAndOtherIncentivePlans	-534000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14758000	USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.55
	us-gaap	Dividends Common Stock DividendsCommonStock	64212000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1375823000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	936576000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	141812000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8831000	USD
CY2020Q3	rwt	Stock Issued During Period Value Employee Stock Purchase Plans And Other Incentive Plans StockIssuedDuringPeriodValueEmployeeStockPurchasePlansAndOtherIncentivePlans	9000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3906000	USD
CY2020Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	21659000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.14
CY2020Q3	us-gaap	Dividends Common Stock DividendsCommonStock	16011000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1053464000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1827231000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-62073000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	5547000	USD
	rwt	Stock Issued During Period Value Employee Stock Purchase Plans And Other Incentive Plans StockIssuedDuringPeriodValueEmployeeStockPurchasePlansAndOtherIncentivePlans	-2765000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11146000	USD
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	21659000	USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.585
	us-gaap	Dividends Common Stock DividendsCommonStock	67821000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1053464000	USD
	us-gaap	Net Income Loss NetIncomeLoss	275568000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-300000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-6213000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	12674000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	13166000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	960419000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	654820000	USD
	us-gaap	Payments To Purchase Loans Held For Sale PaymentsToPurchaseLoansHeldForSale	9902028000	USD
	us-gaap	Payments To Purchase Loans Held For Sale PaymentsToPurchaseLoansHeldForSale	2893246000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	6948264000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	3224526000	USD
	us-gaap	Proceeds From Collection Of Loans Held For Sale ProceedsFromCollectionOfLoansHeldForSale	49619000	USD
	us-gaap	Proceeds From Collection Of Loans Held For Sale ProceedsFromCollectionOfLoansHeldForSale	53677000	USD
	rwt	Payments For Proceeds From Derivative Instrument Operating Activities PaymentsForProceedsFromDerivativeInstrumentOperatingActivities	27412000	USD
	rwt	Payments For Proceeds From Derivative Instrument Operating Activities PaymentsForProceedsFromDerivativeInstrumentOperatingActivities	-187130000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	14758000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	11146000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	88675000	USD
	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	292056000	USD
	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	-606764000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	17803000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	30419000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	9680000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-304147000	USD
	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	73120000	USD
	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	-82489000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-3780271000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-175932000	USD
	rwt	Payments For Origination Of Loans Held For Investment PaymentsForOriginationOfLoansHeldForInvestment	557327000	USD
	rwt	Payments For Origination Of Loans Held For Investment PaymentsForOriginationOfLoansHeldForInvestment	327494000	USD
	rwt	Repayments Of Servicing Advance Investments RepaymentsOfServicingAdvanceInvestments	58248000	USD
	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	35713000	USD
	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	0	USD
	us-gaap	Proceeds From Collection Of Retained Interest In Securitized Receivables ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables	142990000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	37500000	USD
	rwt	Repayments Of Servicing Advance Investments RepaymentsOfServicingAdvanceInvestments	83124000	USD
	rwt	Payments To Acquire Home Equity Investment Contracts PaymentsToAcquireHomeEquityInvestmentContracts	109174000	USD
	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	9484000	USD
	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	1574160000	USD
	us-gaap	Proceeds From Collection Of Finance Receivables ProceedsFromCollectionOfFinanceReceivables	1950151000	USD
	us-gaap	Proceeds From Collection Of Finance Receivables ProceedsFromCollectionOfFinanceReceivables	1652418000	USD
	rwt	Payments To Acquire Real Estate Securities PaymentsToAcquireRealEstateSecurities	29342000	USD
	rwt	Payments To Acquire Real Estate Securities PaymentsToAcquireRealEstateSecurities	106422000	USD
	us-gaap	Proceeds From Collection Of Retained Interest In Securitized Receivables ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables	8197000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	634709000	USD
	rwt	Proceeds From Principal Repayments On Securities ProceedsFromPrincipalRepaymentsOnSecurities	46904000	USD
	rwt	Proceeds From Principal Repayments On Securities ProceedsFromPrincipalRepaymentsOnSecurities	19446000	USD
	rwt	Payments For Servicing Advance Investments PaymentsForServicingAdvanceInvestments	0	USD
	rwt	Payments For Servicing Advance Investments PaymentsForServicingAdvanceInvestments	179419000	USD
	rwt	Payments To Acquire Home Equity Investment Contracts PaymentsToAcquireHomeEquityInvestmentContracts	986000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	15915000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-22019000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	1363013000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	3514545000	USD
	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	9847178000	USD
	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	3981572000	USD
	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	8443664000	USD
	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	5828972000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	2822785000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	1343845000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	1549766000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	1037546000	USD
	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	948674000	USD
	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	1251850000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	1055475000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	2640007000	USD
	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	0	USD
	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	84336000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	290833000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	645706000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	20248000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	5791000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2518514000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-3105168000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	21659000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	957000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3009000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	64212000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	67821000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-6297000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4876000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	101256000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	233445000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	544450000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	524278000	USD
	us-gaap	Interest Paid Net InterestPaidNet	298507000	USD
	us-gaap	Interest Paid Net InterestPaidNet	364875000	USD
CY2021Q3	us-gaap	Transfers Of Financial Assets Accounted For As Sale Initial Fair Value Of Assets Obtained As Proceeds TransfersOfFinancialAssetsAccountedForAsSaleInitialFairValueOfAssetsObtainedAsProceeds	9375000	USD
CY2020Q3	us-gaap	Transfers Of Financial Assets Accounted For As Sale Initial Fair Value Of Assets Obtained As Proceeds TransfersOfFinancialAssetsAccountedForAsSaleInitialFairValueOfAssetsObtainedAsProceeds	46560000	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	7065000	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	0	USD
	rwt	Consolidation Deconsolidation Of Multifamily Loans Held In Securitizations Trusts ConsolidationDeconsolidationOfMultifamilyLoansHeldInSecuritizationsTrusts	0	USD
	rwt	Consolidation Deconsolidation Of Multifamily Loans Held In Securitizations Trusts ConsolidationDeconsolidationOfMultifamilyLoansHeldInSecuritizationsTrusts	-3849779000	USD
	rwt	Consolidation Deconsolidation Of Multifamily Asset Backed Securities ConsolidationDeconsolidationOfMultifamilyAssetBackedSecurities	0	USD
	rwt	Consolidation Deconsolidation Of Multifamily Asset Backed Securities ConsolidationDeconsolidationOfMultifamilyAssetBackedSecurities	-3706789000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	3005041000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	461000000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	770754000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	44922000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	0	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	21655000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	12547000	USD
	rwt	Long Term Debt Transferred To Short Term Debt LongTermDebtTransferredToShortTermDebt	93150000	USD
	rwt	Long Term Debt Transferred To Short Term Debt LongTermDebtTransferredToShortTermDebt	0	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1135000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5362000	USD
	rwt	Operating Lease Liability Reduction From Lease Modification OperatingLeaseLiabilityReductionFromLeaseModification	0	USD
	rwt	Operating Lease Liability Reduction From Lease Modification OperatingLeaseLiabilityReductionFromLeaseModification	1466000	USD
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	13375000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	83000000	USD
	us-gaap	Nature Of Operations NatureOfOperations	Organization<div style="margin-top:9pt;text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Redwood Trust, Inc., together with its subsidiaries, is a specialty finance company focused on several distinct areas of housing credit. Our operating platforms occupy a unique position in the housing finance value chain, providing liquidity to growing segments of the U.S. housing market not served by government programs. We deliver customized housing credit investments to a diverse mix of investors, through our best-in-class securitization platforms; whole-loan distribution activities; and our publicly-traded shares. Our consolidated investment portfolio has evolved to incorporate a diverse mix of residential, business purpose and multifamily investments. Our goal is to provide attractive returns to shareholders through a stable and growing stream of earnings and dividends, capital appreciation, and a commitment to technological innovation that facilitates risk-minded scale. We operate our business in three segments: Residential Lending, Business Purpose Lending, and Third-Party Investments.</span></div><div style="margin-top:9pt;text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our primary sources of income are net interest income from our investments and non-interest income from our mortgage banking activities. Net interest income primarily consists of the interest income we earn on investments less the interest expense we incur on borrowed funds and other liabilities. Income from mortgage banking activities is generated through the origination and acquisition of loans, and their subsequent sale, securitization, or transfer to our investment portfolios. </span></div><div style="margin-top:12pt;text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Redwood Trust, Inc. has elected to be taxed as a real estate investment trust (“REIT”) under the Internal Revenue Code of 1986, as amended (the “Internal Revenue Code”), beginning with its taxable year ended December 31, 1994. We generally refer, collectively, to Redwood Trust, Inc. and those of its subsidiaries that are generally not subject to subsidiary-level corporate income tax as “the REIT” or “our REIT.” We generally refer to subsidiaries of Redwood Trust, Inc. that are subject to subsidiary-level corporate income tax as “our taxable REIT subsidiaries” or “TRS.” </span></div>Redwood was incorporated in the State of Maryland on April 11, 1994, and commenced operations on August 19, 1994. References herein to “Redwood,” the “company,” “we,” “us,” and “our” include Redwood Trust, Inc. and its consolidated subsidiaries, unless the context otherwise requires.
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2021Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	4070000	USD
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	3375000	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	557000000	USD
CY2021Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	89000000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	3685000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	12800000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	10091000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	45246000	USD
CY2021Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	0	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	7073000	USD
CY2021Q3	rwt	Finite Lived Intangible Asset Expected Amortization Year Four And Thereafter FiniteLivedIntangibleAssetExpectedAmortizationYearFourAndThereafter	11597000	USD
	us-gaap	Variable Interest Entity Ownership Percentage VariableInterestEntityOwnershipPercentage	0.80
	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates </span></div><div style="margin-top:8pt;text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements requires us to make a number of significant estimates. These include estimates of fair value of certain assets and liabilities, amounts and timing of credit losses, prepayment rates, and other estimates that affect the reported amounts of certain assets and liabilities as of the date of the consolidated financial statements and the reported amounts of certain revenues and expenses during the reported periods. It is likely that changes in these estimates (e.g., valuation changes due to supply and demand, credit performance, prepayments, interest rates, or other reasons) will occur in the near term. Our estimates are inherently subjective in nature and actual results could differ from our estimates and the differences could be material.</span></div>
	rwt	Amortizationof Purchase Related Intangible Assets AmortizationofPurchaseRelatedIntangibleAssets	12000000	USD
	rwt	Amortizationof Purchase Related Intangible Assets AmortizationofPurchaseRelatedIntangibleAssets	12000000	USD
CY2021Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	1423652000	USD
CY2021Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	0	USD
CY2021Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	1423652000	USD
CY2021Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	1419582000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	230539000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	0	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	230539000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	228467000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	1061000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	1011000	USD
	us-gaap	Variable Interest Entity Ownership Percentage VariableInterestEntityOwnershipPercentage	0.80
CY2021Q3	rwt	Loans Held For Sale Fair Value Acquired LoansHeldForSaleFairValueAcquired	151000000	USD
CY2021Q3	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	78415000	USD
CY2020Q3	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	158883000	USD
	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	292056000	USD
	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	-606764000	USD
	rwt	Real Estate Owned Held For Investment Adjustable Rate Percent RealEstateOwnedHeldForInvestmentAdjustableRatePercent	0.69
	rwt	Real Estate Owned Held For Investment Fixed Rate Percentage RealEstateOwnedHeldForInvestmentFixedRatePercentage	0.31
CY2021Q3	us-gaap	Trading Securities TradingSecurities	153010000	USD
CY2020Q4	us-gaap	Trading Securities TradingSecurities	125667000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	200276000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	218458000	USD
CY2021Q3	us-gaap	Marketable Securities MarketableSecurities	353286000	USD
CY2020Q4	us-gaap	Marketable Securities MarketableSecurities	344125000	USD
CY2021Q3	us-gaap	Trading Securities TradingSecurities	153010000	USD
CY2020Q4	us-gaap	Trading Securities TradingSecurities	125667000	USD
CY2021Q3	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	216771000	USD
CY2020Q4	us-gaap	Investment Owned Balance Principal Amount InvestmentOwnedBalancePrincipalAmount	245855000	USD
CY2021Q3	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	10750000	USD
CY2020Q3	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	11000000	USD
	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	28380000	USD
	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	77721000	USD
CY2021Q3	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	750000	USD
CY2020Q3	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	15903000	USD
	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	53561000	USD
	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	720517000	USD
CY2021Q3	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	1578000	USD
CY2020Q3	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-3600000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	24725000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-224679000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	200276000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	218458000	USD
CY2021Q3	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	USD
CY2020Q3	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	25483000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1600000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	56664000	USD
CY2021Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
CY2020Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	4785000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	55193000	USD
CY2021Q3	rwt	Debt Securities Available For Sale Principal Balance DebtSecuritiesAvailableForSalePrincipalBalance	238459000	USD
CY2021Q3	rwt	Debt Securities Available For Sale Credit Reserve DebtSecuritiesAvailableForSaleCreditReserve	29448000	USD
CY2021Q3	rwt	Debt Securities Available For Sale Unamortized Discounts Premiums DebtSecuritiesAvailableForSaleUnamortizedDiscountsPremiums	88108000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	120903000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	79406000	USD
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	33000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	200276000	USD
CY2020Q4	rwt	Debt Securities Available For Sale Principal Balance DebtSecuritiesAvailableForSalePrincipalBalance	283284000	USD
CY2020Q4	rwt	Debt Securities Available For Sale Credit Reserve DebtSecuritiesAvailableForSaleCreditReserve	44967000	USD
CY2020Q4	rwt	Debt Securities Available For Sale Unamortized Discounts Premiums DebtSecuritiesAvailableForSaleUnamortizedDiscountsPremiums	95718000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	142599000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	77294000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1047000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	388000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	218458000	USD
CY2021Q3	rwt	Number Of Available For Sale Securities NumberOfAvailableForSaleSecurities	84	investment
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	1	investment
CY2020Q4	rwt	Number Of Available For Sale Securities NumberOfAvailableForSaleSecurities	96	investment
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	5	investment
CY2020Q4	rwt	Number Of Securities Continuous Unrealized Loss Position More Than Twelve Months NumberOfSecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonths	0	investment
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	33000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossRecovery	0	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	388000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	-388000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Purchased With Credit Deterioration Increase DebtSecuritiesAvailableForSaleAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Purchased With Credit Deterioration Increase DebtSecuritiesAvailableForSaleAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Securities Sold DebtSecuritiesAvailableForSaleAllowanceForCreditLossSecuritiesSold	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Securities Sold DebtSecuritiesAvailableForSaleAllowanceForCreditLossSecuritiesSold	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Sell Before Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossSellBeforeRecovery	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Sell Before Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossSellBeforeRecovery	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossRecovery	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2021Q3	rwt	Availableforsale Securities Gross Realized Gain Loss On Sales And Calls AvailableforsaleSecuritiesGrossRealizedGainLossOnSalesAndCalls	6389000	USD
CY2020Q3	rwt	Availableforsale Securities Gross Realized Gain Loss On Sales And Calls AvailableforsaleSecuritiesGrossRealizedGainLossOnSalesAndCalls	0	USD
	rwt	Availableforsale Securities Gross Realized Gain Loss On Sales And Calls AvailableforsaleSecuritiesGrossRealizedGainLossOnSalesAndCalls	16991000	USD
	rwt	Availableforsale Securities Gross Realized Gain Loss On Sales And Calls AvailableforsaleSecuritiesGrossRealizedGainLossOnSalesAndCalls	4635000	USD
CY2021Q3	us-gaap	Other Investments OtherInvestments	422366000	USD
CY2020Q4	us-gaap	Other Investments OtherInvestments	348175000	USD
	rwt	Number Of Partnerships Consolidated NumberOfPartnershipsConsolidated	2	partnership
	rwt	Commitment To Fund Partnership CommitmentToFundPartnership	94000000	USD
CY2021Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	159408000	USD
CY2020Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	217656000	USD
CY2021Q3	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	40131000	USD
CY2021Q3	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	8968793000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	37166000	USD
CY2020Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	11346407000	USD
CY2021Q3	us-gaap	Interest Receivable InterestReceivable	41997000	USD
CY2020Q4	us-gaap	Interest Receivable InterestReceivable	39445000	USD
CY2021Q3	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	32420000	USD
CY2020Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	43176000	USD
CY2021Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	20153000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	871000	USD
CY2021Q3	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	18863000	USD
CY2020Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	8413000	USD
CY2021Q3	us-gaap	Margin Deposit Assets MarginDepositAssets	16503000	USD
CY2020Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	4758000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	13659000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	15012000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9344000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4203000	USD
CY2021Q3	us-gaap	Pledged Assets Separately Reported Other Assets Pledged As Collateral At Fair Value PledgedAssetsSeparatelyReportedOtherAssetsPledgedAsCollateralAtFairValue	0	USD
CY2020Q4	us-gaap	Pledged Assets Separately Reported Other Assets Pledged As Collateral At Fair Value PledgedAssetsSeparatelyReportedOtherAssetsPledgedAsCollateralAtFairValue	1177000	USD
CY2021Q3	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	9254000	USD
CY2020Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	13533000	USD
CY2021Q3	us-gaap	Other Assets OtherAssets	162193000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	130588000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	17000000	USD
CY2021Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	7000000	USD
CY2021Q3	us-gaap	Employee Related Liabilities Current And Noncurrent EmployeeRelatedLiabilitiesCurrentAndNoncurrent	64354000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current And Noncurrent EmployeeRelatedLiabilitiesCurrentAndNoncurrent	24393000	USD
CY2021Q3	rwt	Margin Payable MarginPayable	48298000	USD
CY2020Q4	rwt	Margin Payable MarginPayable	14728000	USD
CY2021Q3	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	34545000	USD
CY2020Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	34858000	USD
CY2021Q3	us-gaap	Minority Interest In Limited Partnerships MinorityInterestInLimitedPartnerships	31781000	USD
CY2020Q4	us-gaap	Minority Interest In Limited Partnerships MinorityInterestInLimitedPartnerships	16941000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	15771000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	16687000	USD
CY2021Q3	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	11336000	USD
CY2020Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	5614000	USD
CY2021Q3	rwt	Mortgage Loan On Real Estate Repurchase Reserve MortgageLoanOnRealEstateRepurchaseReserve	9003000	USD
CY2020Q4	rwt	Mortgage Loan On Real Estate Repurchase Reserve MortgageLoanOnRealEstateRepurchaseReserve	8631000	USD
CY2021Q3	us-gaap	Guaranty Liabilities GuarantyLiabilities	7902000	USD
CY2020Q4	us-gaap	Guaranty Liabilities GuarantyLiabilities	10039000	USD
CY2021Q3	rwt	Accrued Operating Expenses AccruedOperatingExpenses	4068000	USD
CY2020Q4	rwt	Accrued Operating Expenses AccruedOperatingExpenses	5509000	USD
CY2021Q3	rwt	Bridge Loan Holdback BridgeLoanHoldback	3784000	USD
CY2020Q4	rwt	Bridge Loan Holdback BridgeLoanHoldback	5708000	USD
CY2021Q3	rwt	Business Combination Deferred Consideration BusinessCombinationDeferredConsideration	0	USD
CY2020Q4	rwt	Business Combination Deferred Consideration BusinessCombinationDeferredConsideration	14579000	USD
CY2021Q3	rwt	Other Liabilities Miscellaneous OtherLiabilitiesMiscellaneous	20734000	USD
CY2020Q4	rwt	Other Liabilities Miscellaneous OtherLiabilitiesMiscellaneous	21653000	USD
CY2021Q3	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	251576000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	179340000	USD
CY2020Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	8413000	USD
	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	21654000	USD
	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	11539000	USD
	us-gaap	Principal Investment Gains Losses PrincipalInvestmentGainsLosses	335000	USD
CY2021Q3	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	18863000	USD
	rwt	Realized Gain Loss From Liquidation RealizedGainLossFromLiquidation	-300000	USD
CY2021Q3	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	29	asset
CY2020Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	17	asset
CY2021Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	1750941000	USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	522609000	USD
CY2021Q3	rwt	Shortterm Debt Pledgedas Collateral ShorttermDebtPledgedasCollateral	2034873000	USD
CY2020Q4	rwt	Shortterm Debt Pledgedas Collateral ShorttermDebtPledgedasCollateral	649106000	USD
CY2021Q3	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	1980000000	USD
	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	1610000000	USD
CY2021Q3	us-gaap	Interest Payable Current InterestPayableCurrent	2000000	USD
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	1000000	USD
CY2021Q3	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	10000000	USD
CY2021Q3	us-gaap	Financial Instruments Owned And Pledged As Collateral At Fair Value FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue	2000000	USD
CY2020Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2021Q3	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2021Q3	us-gaap	Debt Instrument Collateral Amount DebtInstrumentCollateralAmount	1175479000	USD
CY2020Q4	us-gaap	Debt Instrument Collateral Amount DebtInstrumentCollateralAmount	1084929000	USD
CY2021Q3	rwt	Interest Payable Noncurrent InterestPayableNoncurrent	9410000	USD
CY2020Q4	rwt	Interest Payable Noncurrent InterestPayableNoncurrent	12402000	USD
CY2021Q3	rwt	Lessee Number Of Leases LesseeNumberOfLeases	7	lease
CY2021Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	1750941000	USD
CY2021Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	1510056000	USD
CY2021Q3	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	10479000	USD
CY2021Q3	us-gaap	Long Term Debt LongTermDebt	1499577000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	18000000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	3000000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	3000000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	928000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	3714000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	3235000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2411000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1983000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6128000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	18399000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2628000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	15771000	USD
	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	1000000	USD
	rwt	Increase Decrease In Operating Lease Right Of Use Asset IncreaseDecreaseInOperatingLeaseRightOfUseAsset	1000000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	16000000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	14000000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.049
CY2021Q3	rwt	Other Commitments Net Market Valuation Gains Loss OtherCommitmentsNetMarketValuationGainsLoss	-300000	USD
	rwt	Other Commitments Net Market Valuation Gains Loss OtherCommitmentsNetMarketValuationGainsLoss	1000000	USD
CY2020Q3	rwt	Other Commitments Net Market Valuation Gains Loss OtherCommitmentsNetMarketValuationGainsLoss	1000000	USD
	rwt	Other Commitments Net Market Valuation Gains Loss OtherCommitmentsNetMarketValuationGainsLoss	-1000000	USD
CY2019Q1	rwt	Commitment To Fund Partnership Number Of Partnerships CommitmentToFundPartnershipNumberOfPartnerships	2	partnership
	rwt	Market Valuation Changes In Fair Value Of Guarantee Asset MarketValuationChangesInFairValueOfGuaranteeAsset	-100000	USD
CY2021Q3	us-gaap	Guaranty Liabilities GuarantyLiabilities	8000000	USD
CY2021Q3	rwt	Guarantee Obligation Credit Reserve GuaranteeObligationCreditReserve	5000000	USD
CY2021Q3	rwt	Special Purpose Entities Assets SpecialPurposeEntitiesAssets	34000000	USD
CY2020Q4	rwt	Special Purpose Entities Assets SpecialPurposeEntitiesAssets	46000000	USD
CY2021Q3	rwt	Special Purpose Entities Liabilities SpecialPurposeEntitiesLiabilities	8000000	USD
CY2020Q4	rwt	Special Purpose Entities Liabilities SpecialPurposeEntitiesLiabilities	10000000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	88286000	USD
CY2020Q4	rwt	Mortgage Loan On Real Estate Repurchase Reserve MortgageLoanOnRealEstateRepurchaseReserve	9000000	USD
CY2021Q3	rwt	Mortgage Loan On Real Estate Repurchase Reserve MortgageLoanOnRealEstateRepurchaseReserve	9000000	USD
	rwt	Mortgage Loans On Real Estate Repurchase Requests MortgageLoansOnRealEstateRepurchaseRequests	3	repurchase_request
	rwt	Mortgage Loans On Real Estate Repurchase Requests MortgageLoansOnRealEstateRepurchaseRequests	8	repurchase_request
	rwt	Mortgage Loans On Real Estate Number Of Loans Repurchased MortgageLoansOnRealEstateNumberOfLoansRepurchased	1	loan
	rwt	Mortgage Loans On Real Estate Number Of Loans Repurchased MortgageLoansOnRealEstateNumberOfLoansRepurchased	0	loan
	rwt	Mortgage Loans On Real Estate Repurchase Provision MortgageLoansOnRealEstateRepurchaseProvision	600000	USD
	rwt	Mortgage Loans On Real Estate Repurchase Provision MortgageLoansOnRealEstateRepurchaseProvision	-4000000	USD
CY2021Q3	us-gaap	Litigation Reserve LitigationReserve	2000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	141812000	USD
	us-gaap	Net Income Loss NetIncomeLoss	275568000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
CY2021Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	2984000	USD
CY2020Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	4067000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	8979000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1427000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	85302000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	137745000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	266589000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-637569000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	112995847	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	113403102	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	112754691	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	113952308	shares
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.21
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.36
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-5.60
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	88286000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	141812000	USD
	us-gaap	Net Income Loss NetIncomeLoss	275568000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	288002000	USD
CY2021Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	2747000	USD
CY2020Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	3512000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	8151000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	1427000	USD
CY2021Q3	rwt	Interest And Gain Loss On Extinguishment Of Convertible Debt Net Of Tax InterestAndGainLossOnExtinguishmentOfConvertibleDebtNetOfTax	6870000	USD
CY2020Q3	rwt	Interest And Gain Loss On Extinguishment Of Convertible Debt Net Of Tax InterestAndGainLossOnExtinguishmentOfConvertibleDebtNetOfTax	6990000	USD
	rwt	Interest And Gain Loss On Extinguishment Of Convertible Debt Net Of Tax InterestAndGainLossOnExtinguishmentOfConvertibleDebtNetOfTax	20585000	USD
	rwt	Interest And Gain Loss On Extinguishment Of Convertible Debt Net Of Tax InterestAndGainLossOnExtinguishmentOfConvertibleDebtNetOfTax	0	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	92409000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	145290000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-637569000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	112995847	shares
CY2020Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	113403102	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	112754691	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	113952308	shares
CY2021Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	292749	shares
CY2020Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	253819	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	28566875	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	28566875	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	28566875	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	141855471	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	141969977	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	141575385	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	113952308	shares
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.02
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.03
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-5.60
CY2021Q3	rwt	Employee Stock Purchase Plan Number Of Shares Authorized EmployeeStockPurchasePlanNumberOfSharesAuthorized	850000	shares
CY2021Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	26000000	USD
CY2020Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	27664000	USD
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	8471000	USD
	rwt	Sharebased Compensation Arrangementby Sharebased Payment Award Equity Instruments Otherthan Options Valuation Adjustment SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsValuationAdjustment	1072000	USD
	rwt	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost Forfeitures SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCostForfeitures	1222000	USD
	rwt	Allocated Sharebased Compensation Expense Including Restructuring AllocatedSharebasedCompensationExpenseIncludingRestructuring	9497000	USD
CY2021Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	26488000	USD
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y
	rwt	Employee Stock Purchase Plan Number Of Shares Purchased By Employee EmployeeStockPurchasePlanNumberOfSharesPurchasedByEmployee	546093	shares
CY2020	rwt	Employee Stock Purchase Plan Number Of Shares Purchased By Employee EmployeeStockPurchasePlanNumberOfSharesPurchasedByEmployee	489886	shares
CY2021Q3	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	63163000	USD
CY2020Q3	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	59395000	USD
	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	200189000	USD
	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	24511000	USD
CY2021Q3	rwt	Mortgage Servicing Rights Income Loss Net MortgageServicingRightsIncomeLossNet	295000	USD
CY2020Q3	rwt	Mortgage Servicing Rights Income Loss Net MortgageServicingRightsIncomeLossNet	-2362000	USD
	rwt	Mortgage Servicing Rights Income Loss Net MortgageServicingRightsIncomeLossNet	949000	USD
	rwt	Mortgage Servicing Rights Income Loss Net MortgageServicingRightsIncomeLossNet	-5595000	USD
CY2021Q3	rwt	Fee Income Risk Sharing Agreement FeeIncomeRiskSharingAgreement	575000	USD
CY2020Q3	rwt	Fee Income Risk Sharing Agreement FeeIncomeRiskSharingAgreement	1200000	USD
	rwt	Fee Income Risk Sharing Agreement FeeIncomeRiskSharingAgreement	2318000	USD
	rwt	Fee Income Risk Sharing Agreement FeeIncomeRiskSharingAgreement	3146000	USD
CY2021Q3	rwt	Fhlbc Capital Stock Dividend FHLBCCapitalStockDividend	3000	USD
CY2020Q3	rwt	Fhlbc Capital Stock Dividend FHLBCCapitalStockDividend	116000	USD
	rwt	Fhlbc Capital Stock Dividend FHLBCCapitalStockDividend	53000	USD
	rwt	Fhlbc Capital Stock Dividend FHLBCCapitalStockDividend	1201000	USD
CY2021Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	1131000	USD
CY2020Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	716000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	2735000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	2520000	USD
CY2021Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	384000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	216000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2302000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2707000	USD
CY2021Q3	us-gaap	Other Income OtherIncome	2388000	USD
CY2020Q3	us-gaap	Other Income OtherIncome	-114000	USD
	us-gaap	Other Income OtherIncome	8357000	USD
	us-gaap	Other Income OtherIncome	3979000	USD
CY2021Q3	rwt	Fixed Compensation Expense FixedCompensationExpense	11285000	USD
CY2020Q3	rwt	Fixed Compensation Expense FixedCompensationExpense	10103000	USD
	rwt	Fixed Compensation Expense FixedCompensationExpense	34359000	USD
	rwt	Fixed Compensation Expense FixedCompensationExpense	36605000	USD
CY2021Q3	rwt	Variable Compensation Expense VariableCompensationExpense	19844000	USD
CY2020Q3	rwt	Variable Compensation Expense VariableCompensationExpense	5882000	USD
	rwt	Variable Compensation Expense VariableCompensationExpense	51021000	USD
	rwt	Variable Compensation Expense VariableCompensationExpense	9171000	USD
CY2021Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4915000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2639000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14766000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7896000	USD
CY2021Q3	rwt	Acquisition Related Sharebased Payment Arrangement Expense AcquisitionRelatedSharebasedPaymentArrangementExpense	1189000	USD
CY2020Q3	rwt	Acquisition Related Sharebased Payment Arrangement Expense AcquisitionRelatedSharebasedPaymentArrangementExpense	1212000	USD
	rwt	Acquisition Related Sharebased Payment Arrangement Expense AcquisitionRelatedSharebasedPaymentArrangementExpense	3613000	USD
	rwt	Acquisition Related Sharebased Payment Arrangement Expense AcquisitionRelatedSharebasedPaymentArrangementExpense	3636000	USD
CY2021Q3	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	2975000	USD
CY2020Q3	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	2145000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	9224000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	7752000	USD
CY2021Q3	rwt	Office Costs OfficeCosts	2197000	USD
CY2020Q3	rwt	Office Costs OfficeCosts	1859000	USD
	rwt	Office Costs OfficeCosts	6029000	USD
	rwt	Office Costs OfficeCosts	5854000	USD
CY2021Q3	us-gaap	Professional Fees ProfessionalFees	1197000	USD
CY2020Q3	us-gaap	Professional Fees ProfessionalFees	1601000	USD
	us-gaap	Professional Fees ProfessionalFees	3132000	USD
	us-gaap	Professional Fees ProfessionalFees	6605000	USD
CY2021Q3	us-gaap	Other General Expense OtherGeneralExpense	964000	USD
CY2020Q3	us-gaap	Other General Expense OtherGeneralExpense	831000	USD
	us-gaap	Other General Expense OtherGeneralExpense	2528000	USD
	us-gaap	Other General Expense OtherGeneralExpense	2128000	USD
CY2021Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	3126000	USD
CY2020Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	1358000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	7165000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	5185000	USD
CY2021Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	47692000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27630000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	131837000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	84832000	USD
CY2021Q3	rwt	Commissions On Loan Acquisitions CommissionsOnLoanAcquisitions	1906000	USD
CY2020Q3	rwt	Commissions On Loan Acquisitions CommissionsOnLoanAcquisitions	879000	USD
	rwt	Commissions On Loan Acquisitions CommissionsOnLoanAcquisitions	4830000	USD
	rwt	Commissions On Loan Acquisitions CommissionsOnLoanAcquisitions	3027000	USD
CY2021Q3	rwt	Underwriting Costs Associated With Loan Acquisitions UnderwritingCostsAssociatedWithLoanAcquisitions	2351000	USD
CY2020Q3	rwt	Underwriting Costs Associated With Loan Acquisitions UnderwritingCostsAssociatedWithLoanAcquisitions	771000	USD
	rwt	Underwriting Costs Associated With Loan Acquisitions UnderwritingCostsAssociatedWithLoanAcquisitions	5872000	USD
	rwt	Underwriting Costs Associated With Loan Acquisitions UnderwritingCostsAssociatedWithLoanAcquisitions	3289000	USD
CY2021Q3	rwt	Transfer And Hold Costs Associated With Loan Acquisitions TransferAndHoldCostsAssociatedWithLoanAcquisitions	364000	USD
CY2020Q3	rwt	Transfer And Hold Costs Associated With Loan Acquisitions TransferAndHoldCostsAssociatedWithLoanAcquisitions	508000	USD
	rwt	Transfer And Hold Costs Associated With Loan Acquisitions TransferAndHoldCostsAssociatedWithLoanAcquisitions	1226000	USD
	rwt	Transfer And Hold Costs Associated With Loan Acquisitions TransferAndHoldCostsAssociatedWithLoanAcquisitions	1400000	USD
CY2021Q3	rwt	Loan Acquisition Costs LoanAcquisitionCosts	4621000	USD
CY2020Q3	rwt	Loan Acquisition Costs LoanAcquisitionCosts	2158000	USD
	rwt	Loan Acquisition Costs LoanAcquisitionCosts	11928000	USD
	rwt	Loan Acquisition Costs LoanAcquisitionCosts	7716000	USD
CY2021Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	88675000	USD
CY2021Q3	rwt	Amortizationof Purchase Related Intangible Assets AmortizationofPurchaseRelatedIntangibleAssets	3873000	USD
CY2020Q3	rwt	Amortizationof Purchase Related Intangible Assets AmortizationofPurchaseRelatedIntangibleAssets	3873000	USD
	rwt	Amortizationof Purchase Related Intangible Assets AmortizationofPurchaseRelatedIntangibleAssets	11619000	USD
	rwt	Amortizationof Purchase Related Intangible Assets AmortizationofPurchaseRelatedIntangibleAssets	12052000	USD
CY2021Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	150000	USD
CY2020Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	3915000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	485000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	3559000	USD
CY2021Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	4023000	USD
CY2020Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	7788000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	12104000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	104286000	USD
CY2021Q3	us-gaap	Operating Expenses OperatingExpenses	56336000	USD
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	37576000	USD
	us-gaap	Operating Expenses OperatingExpenses	155869000	USD
	us-gaap	Operating Expenses OperatingExpenses	196834000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-13000000	USD
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.086
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.086
	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0.131
	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0.236
	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.068
	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.040
	us-gaap	Effective Income Tax Rate Reconciliation Deductions Dividends EffectiveIncomeTaxRateReconciliationDeductionsDividends	0.049
	us-gaap	Effective Income Tax Rate Reconciliation Deductions Dividends EffectiveIncomeTaxRateReconciliationDeductionsDividends	0
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.048
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.020
CY2021Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	145722000	USD
CY2021Q3	us-gaap	Interest Expense InterestExpense	103754000	USD
CY2021Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	41968000	USD
CY2021Q3	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	63163000	USD
CY2021Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	26077000	USD
CY2021Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	2388000	USD
CY2021Q3	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	6703000	USD
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	98331000	USD
CY2021Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	47692000	USD
CY2021Q3	rwt	Loan Acquisition Costs LoanAcquisitionCosts	4621000	USD
CY2021Q3	us-gaap	Other Expenses OtherExpenses	4023000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-4323000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	88286000	USD
CY2021Q3	us-gaap	Adjustment For Amortization AdjustmentForAmortization	-570000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	412722000	USD
	us-gaap	Interest Expense InterestExpense	314371000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	98351000	USD
	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	200189000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	120644000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	8357000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	17803000	USD
	us-gaap	Noninterest Income NoninterestIncome	346993000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	131837000	USD
	rwt	Loan Acquisition Costs LoanAcquisitionCosts	11928000	USD
	us-gaap	Other Expenses OtherExpenses	12104000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	13907000	USD
	us-gaap	Net Income Loss NetIncomeLoss	275568000	USD
	us-gaap	Adjustment For Amortization AdjustmentForAmortization	-12815000	USD
CY2020Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	121982000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	100411000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	21571000	USD
CY2020Q3	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	59395000	USD
CY2020Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	107047000	USD
CY2020Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-114000	USD
CY2020Q3	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	602000	USD
CY2020Q3	us-gaap	Noninterest Income NoninterestIncome	166930000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27630000	USD
CY2020Q3	rwt	Loan Acquisition Costs LoanAcquisitionCosts	2158000	USD
CY2020Q3	us-gaap	Other Expenses OtherExpenses	7788000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9113000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	141812000	USD
CY2020Q3	us-gaap	Adjustment For Amortization AdjustmentForAmortization	-6333000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	450009000	USD
	us-gaap	Interest Expense InterestExpense	349748000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	100261000	USD
	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	24511000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-611557000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	3979000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	30419000	USD
	us-gaap	Noninterest Income NoninterestIncome	-552648000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	84832000	USD
	rwt	Loan Acquisition Costs LoanAcquisitionCosts	7716000	USD
	us-gaap	Other Expenses OtherExpenses	104286000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-13079000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
	us-gaap	Adjustment For Amortization AdjustmentForAmortization	-19377000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	88675000	USD
CY2021Q3	us-gaap	Marketable Securities MarketableSecurities	353286000	USD
CY2021Q3	us-gaap	Other Investments OtherInvestments	422366000	USD
CY2021Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	45246000	USD
CY2021Q3	us-gaap	Assets Assets	13072714000	USD
CY2020Q4	us-gaap	Marketable Securities MarketableSecurities	344125000	USD
CY2020Q4	us-gaap	Other Investments OtherInvestments	348175000	USD
CY2020Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	56865000	USD
CY2020Q4	us-gaap	Assets Assets	10355066000	USD

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$RWT
REDWOOD TRUST INC Stock $rwt

2021 Q4 Form 10-Q Financial Statement

#000093023621000032 Filed on November 04, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$RWT REDWOOD TRUST INC Stock $rwt

2021 Q4 Form 10-Q Financial Statement

#000093023621000032 Filed on November 04, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$RWT
REDWOOD TRUST INC Stock $rwt