$RWT
REDWOOD TRUST INC Stock $rwt

$rwt Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-Q Financial Statement

#000093023620000038 Filed on November 06, 2020

Income Statement

Concept	2020 Q4	2020 Q3	2019 Q4
Revenue	$121.9M	$122.0M	$192.6M
YoY Change	-36.7%	-18.74%	60.85%
Cost Of Revenue	$98.30M	$100.4M	$147.7M
YoY Change	-33.45%	-13.89%	73.76%
Gross Profit	$23.70M	$21.60M	$44.90M
YoY Change	-47.22%	-35.52%	29.02%
Gross Profit Margin	19.44%	17.71%	23.31%
Selling, General & Admin	$26.80M	$24.20M	$36.40M
YoY Change	-26.37%	4.31%	130.38%
% of Gross Profit	113.08%	112.04%	81.07%
Research & Development		$2.145M
YoY Change		-33.59%
% of Gross Profit		9.93%
Depreciation & Amortization	$4.200M	$4.200M	$4.400M
YoY Change	-4.55%	-16.0%	1000.0%
% of Gross Profit	17.72%	19.44%	9.8%
Operating Expenses	-$20.60M	$37.58M	$49.44M
YoY Change	-141.66%	28.04%	155.16%
Operating Profit	$44.30M	-$15.98M	-$4.544M
YoY Change	-1074.91%	-484.59%	-129.46%
Interest Expense	$23.10M	$100.4M	$147.7M
YoY Change	-84.36%	-13.89%	73.85%
% of Operating Profit	52.14%
Other Income/Expense, Net		$7.788M
YoY Change		207.7%
Pretax Income	$62.80M	$150.9M	$53.50M
YoY Change	17.38%	341.35%	-2531.82%
Income Tax	$8.500M	$9.113M	$4.300M
% Of Pretax Income	13.54%	6.04%	8.04%
Net Earnings	$54.30M	$141.8M	$49.14M
YoY Change	10.49%	313.33%	-5482.58%
Net Earnings / Revenue	44.54%	116.26%	25.52%
Basic Earnings Per Share		$1.21	$0.42
Diluted Earnings Per Share	$476.7K	$1.02	$0.38
COMMON SHARES
Basic Shares Outstanding	111.9M shares	113.4M shares	112.7M shares
Diluted Shares Outstanding		142.0M shares

Balance Sheet

Concept	2020 Q4	2020 Q3	2019 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$805.1M	$802.3M	$1.297B
YoY Change	-37.92%	-52.25%	-20.36%
Cash & Equivalents	$461.0M	$451.0M	$197.0M
Short-Term Investments	$344.1M	$351.3M	$1.100B
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$548.0M	$528.0M	$430.0M
YoY Change	27.44%	-16.98%	51.41%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.203M	$4.408M	$4.901M
YoY Change	-14.24%	-8.05%	-4.01%
Goodwill	$0.00		$88.68M
YoY Change	-100.0%
Intangibles			$72.79M
YoY Change
Long-Term Investments	$692.0M	$736.0M	$1.458B
YoY Change	-52.54%	-54.93%	-22.9%
Other Assets	$83.00M	$74.00M	$94.00M
YoY Change	-11.7%	-33.93%	224.14%
Total Long-Term Assets	$9.807B	$9.874B	$17.57B
YoY Change	-44.17%	-33.46%	50.73%
TOTAL ASSETS
Total Short-Term Assets	$548.0M	$528.0M	$430.0M
Total Long-Term Assets	$9.807B	$9.874B	$17.57B
Total Assets	$10.36B	$10.40B	$18.00B
YoY Change	-42.46%	-32.78%	50.75%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$14.58M	$8.717M	$5.468M
YoY Change	166.62%		1192.67%
Accrued Expenses	$122.0M	$111.0M	$121.0M
YoY Change	0.83%	9.9%	57.14%
Deferred Revenue
YoY Change
Short-Term Debt	$522.6M	$482.8M	$2.329B
YoY Change	-77.56%	-75.63%	-2.96%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$645.0M	$594.0M	$2.455B
YoY Change	-73.73%	-71.47%	-0.89%
LONG-TERM LIABILITIES
Long-Term Debt	$8.526B	$8.709B	$13.47B
YoY Change	-36.7%	-22.93%	68.74%
Other Long-Term Liabilities	$59.00M	$41.00M	$239.0M
YoY Change	-75.31%	-86.2%	99.17%
Total Long-Term Liabilities	$8.585B	$8.750B	$13.71B
YoY Change	-37.37%	-24.55%	69.19%
TOTAL LIABILITIES
Total Short-Term Liabilities	$645.0M	$594.0M	$2.455B
Total Long-Term Liabilities	$8.585B	$8.750B	$13.71B
Total Liabilities	$9.244B	$9.349B	$16.17B
YoY Change	-42.83%	-31.72%	52.69%
SHAREHOLDERS EQUITY
Retained Earnings	$997.3M	$943.0M	$1.579B
YoY Change	-36.85%	-38.37%	12.0%
Common Stock	$2.266B	$2.263B	$2.271B
YoY Change	-0.21%	0.76%	25.3%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.111B	$1.053B	$1.827B
YoY Change
Total Liabilities & Shareholders Equity	$10.36B	$10.40B	$18.00B
YoY Change	-42.46%	-32.78%	50.75%

Cashflow Statement

Concept	2020 Q4	2020 Q3	2019 Q4
OPERATING ACTIVITIES
Net Income	$54.30M	$141.8M	$49.14M
YoY Change	10.49%	313.33%	-5482.58%
Depreciation, Depletion And Amortization	$4.200M	$4.200M	$4.400M
YoY Change	-4.55%	-16.0%	1000.0%
Cash From Operating Activities	-$329.6M	-$231.5M	$35.70M
YoY Change	-1023.25%	-63.99%	-114.35%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	$555.9M	$454.1M	$110.4M
YoY Change	403.53%	8.58%	-132.29%
Cash From Investing Activities	$555.9M	$454.1M	$110.4M
YoY Change	403.53%	8.58%	-130.05%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-206.1M	-271.5M	-361.4M
YoY Change	-42.97%	-156.72%	-158.25%
NET CHANGE
Cash From Operating Activities	-329.6M	-231.5M	35.70M
Cash From Investing Activities	555.9M	454.1M	110.4M
Cash From Financing Activities	-206.1M	-271.5M	-361.4M
Net Change In Cash	20.20M	-48.90M	-215.3M
YoY Change	-109.38%	-119.24%	-5106.98%
FREE CASH FLOW
Cash From Operating Activities	-$329.6M	-$231.5M	$35.70M
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	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0000930236
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	us-gaap:OtherAssets
CY2020Q3	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	1-13759
	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, 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
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	111928020	shares
CY2020Q3	us-gaap	Marketable Securities MarketableSecurities	351335000	USD
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	1099874000	USD
CY2020Q3	us-gaap	Other Investments OtherInvestments	384628000	USD
CY2019Q4	us-gaap	Other Investments OtherInvestments	358130000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	450684000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	196966000	USD
CY2020Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	73594000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	93867000	USD
CY2020Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	60737000	USD
CY2019Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	161464000	USD
CY2020Q3	us-gaap	Derivative Assets DerivativeAssets	14709000	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	35701000	USD
CY2020Q3	us-gaap	Other Assets OtherAssets	124273000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	419321000	USD
CY2020Q3	us-gaap	Assets Assets	10402412000	USD
CY2019Q4	us-gaap	Assets Assets	17995440000	USD
CY2020Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	482761000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	2329145000	USD
CY2020Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	1612000	USD
CY2019Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	163424000	USD
CY2020Q3	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	155989000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	206893000	USD
CY2020Q3	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	6969376000	USD
CY2019Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	10515475000	USD
CY2020Q3	us-gaap	Secured Debt SecuredDebt	7172398000	USD
CY2019Q4	us-gaap	Secured Debt SecuredDebt	10515475000	USD
CY2020Q3	us-gaap	Other Long Term Debt OtherLongTermDebt	1536188000	USD
CY2019Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	2953272000	USD
CY2020Q3	us-gaap	Liabilities Liabilities	9348948000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	16168209000	USD
CY2020Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	395000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	270000000	shares
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	111904322	shares
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	111904322	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	114353036	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	114353036	shares
CY2020Q3	us-gaap	Common Stock Value CommonStockValue	1119000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	1144000	USD
CY2020Q3	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	55637000	USD
CY2020Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2261911000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	2269617000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-20560000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	41513000	USD
CY2020Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	942982000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1579124000	USD
CY2020Q3	us-gaap	Cumulative Dividends CumulativeDividends	2131988000	USD
CY2019Q4	us-gaap	Cumulative Dividends CumulativeDividends	2064167000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1053464000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1827231000	USD
CY2020Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10402412000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	17995440000	USD
CY2020Q3	us-gaap	Interest And Fee Income Loans Consumer Real Estate InterestAndFeeIncomeLoansConsumerRealEstate	44921000	USD
CY2019Q3	us-gaap	Interest And Fee Income Loans Consumer Real Estate InterestAndFeeIncomeLoansConsumerRealEstate	77070000	USD
	us-gaap	Interest And Fee Income Loans Consumer Real Estate InterestAndFeeIncomeLoansConsumerRealEstate	179331000	USD
	us-gaap	Interest And Fee Income Loans Consumer Real Estate InterestAndFeeIncomeLoansConsumerRealEstate	230308000	USD
CY2019Q3	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	5446000	USD
	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	161710000	USD
	us-gaap	Interest And Fee Income Loans Commercial And Residential Real Estate InterestAndFeeIncomeLoansCommercialAndResidentialRealEstate	12231000	USD
CY2020Q3	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	4918000	USD
CY2019Q3	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	36829000	USD
	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	49960000	USD
	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	94134000	USD
CY2020Q3	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	10135000	USD
CY2019Q3	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	23047000	USD
	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	38471000	USD
	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	72514000	USD
CY2020Q3	us-gaap	Interest Income Other InterestIncomeOther	6371000	USD
CY2019Q3	us-gaap	Interest Income Other InterestIncomeOther	7725000	USD
	us-gaap	Interest Income Other InterestIncomeOther	20537000	USD
	us-gaap	Interest Income Other InterestIncomeOther	20513000	USD
CY2020Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	121982000	USD
CY2019Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	150117000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	450009000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	429700000	USD
CY2020Q3	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	5145000	USD
CY2019Q3	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	24239000	USD
	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	45119000	USD
	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	70732000	USD
CY2020Q3	us-gaap	Interest Expense Beneficial Interests Issued By Consolidated Variable Interest Entities InterestExpenseBeneficialInterestsIssuedByConsolidatedVariableInterestEntities	66514000	USD
CY2019Q3	us-gaap	Interest Expense Beneficial Interests Issued By Consolidated Variable Interest Entities InterestExpenseBeneficialInterestsIssuedByConsolidatedVariableInterestEntities	71065000	USD
	us-gaap	Interest Expense Beneficial Interests Issued By Consolidated Variable Interest Entities InterestExpenseBeneficialInterestsIssuedByConsolidatedVariableInterestEntities	232316000	USD
	us-gaap	Interest Expense Beneficial Interests Issued By Consolidated Variable Interest Entities InterestExpenseBeneficialInterestsIssuedByConsolidatedVariableInterestEntities	196473000	USD
CY2020Q3	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	28752000	USD
CY2019Q3	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	21300000	USD
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	72313000	USD
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	64895000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	100411000	USD
	us-gaap	Variable Interest Entity Ownership Percentage VariableInterestEntityOwnershipPercentage	0.80
CY2019Q3	us-gaap	Interest Expense InterestExpense	116604000	USD
	us-gaap	Interest Expense InterestExpense	349748000	USD
	us-gaap	Interest Expense InterestExpense	332100000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	21571000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	33513000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	100261000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	97600000	USD
CY2020Q3	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	59395000	USD
CY2019Q3	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	9515000	USD
	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	24511000	USD
	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	40984000	USD
CY2020Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	107047000	USD
CY2019Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	11444000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-611557000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	34741000	USD
CY2020Q3	us-gaap	Other Income OtherIncome	-114000	USD
CY2020Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	100000	USD
CY2019Q3	us-gaap	Other Income OtherIncome	4356000	USD
	us-gaap	Other Income OtherIncome	3979000	USD
	us-gaap	Other Income OtherIncome	13840000	USD
CY2020Q3	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	602000	USD
CY2019Q3	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	4714000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	30419000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	18227000	USD
CY2020Q3	us-gaap	Noninterest Income NoninterestIncome	166930000	USD
CY2019Q3	us-gaap	Noninterest Income NoninterestIncome	30029000	USD
	us-gaap	Noninterest Income NoninterestIncome	-552648000	USD
	us-gaap	Noninterest Income NoninterestIncome	107792000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27630000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	24899000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	84832000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	70722000	USD
CY2020Q3	rwt	Loan Acquisition Costs LoanAcquisitionCosts	2158000	USD
CY2019Q3	rwt	Loan Acquisition Costs LoanAcquisitionCosts	1916000	USD
	rwt	Loan Acquisition Costs LoanAcquisitionCosts	7716000	USD
	rwt	Loan Acquisition Costs LoanAcquisitionCosts	5507000	USD
CY2020Q3	us-gaap	Other Expenses OtherExpenses	7788000	USD
CY2019Q3	us-gaap	Other Expenses OtherExpenses	2531000	USD
	us-gaap	Other Expenses OtherExpenses	104286000	USD
	us-gaap	Other Expenses OtherExpenses	6021000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	150925000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	34196000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-649221000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	123142000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9113000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-114000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-13079000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3102000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	141812000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	34310000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
	us-gaap	Net Income Loss NetIncomeLoss	120040000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.21
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.33
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-5.60
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.20
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.02
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-5.60
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.09
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	113403102	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	101872126	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	113952308	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97214064	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	141969977	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	136522709	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	113952308	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	131202689	shares
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	141812000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	34310000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
	us-gaap	Net Income Loss NetIncomeLoss	120040000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	8236000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	4484000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-19890000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	19764000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	445000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	3492000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	11525000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	15807000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	0	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-11791000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-32806000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-27130000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-1040000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	0	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	-2148000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax	0	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	8831000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-10799000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-62073000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-23173000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	150643000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	23511000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-698215000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	96867000	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
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	1564032000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	34310000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-10799000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	228483000	USD
CY2019Q3	rwt	Stock Issued During Period Value Employee Stock Purchase Plans And Other Incentive Plans StockIssuedDuringPeriodValueEmployeeStockPurchasePlansAndOtherIncentivePlans	154000	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3297000	USD
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2019Q3	us-gaap	Dividends Common Stock DividendsCommonStock	34418000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	1785059000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1348794000	USD
	us-gaap	Net Income Loss NetIncomeLoss	120040000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-23173000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	418591000	USD
	rwt	Stock Issued During Period Value Dividend Reinvestment And Stock Purchase Plan StockIssuedDuringPeriodValueDividendReinvestmentAndStockPurchasePlan	6307000	USD
	rwt	Stock Issued During Period Value Employee Stock Purchase Plans And Other Incentive Plans StockIssuedDuringPeriodValueEmployeeStockPurchasePlansAndOtherIncentivePlans	-1766000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10552000	USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.90
	us-gaap	Dividends Common Stock DividendsCommonStock	94286000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	1785059000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
	us-gaap	Net Income Loss NetIncomeLoss	120040000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-6213000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	3486000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	13166000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	5673000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	654820000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	124392000	USD
	us-gaap	Payments To Purchase Loans Held For Sale PaymentsToPurchaseLoansHeldForSale	2893246000	USD
	us-gaap	Payments To Purchase Loans Held For Sale PaymentsToPurchaseLoansHeldForSale	4002509000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	3224526000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	2971811000	USD
	us-gaap	Proceeds From Collection Of Loans Held For Sale ProceedsFromCollectionOfLoansHeldForSale	53677000	USD
	us-gaap	Proceeds From Collection Of Loans Held For Sale ProceedsFromCollectionOfLoansHeldForSale	77100000	USD
	rwt	Payments For Proceeds From Derivative Instrument Operating Activities PaymentsForProceedsFromDerivativeInstrumentOperatingActivities	-187130000	USD
	rwt	Payments For Proceeds From Derivative Instrument Operating Activities PaymentsForProceedsFromDerivativeInstrumentOperatingActivities	-32902000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	11146000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	10552000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	88675000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	-606764000	USD
	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	62720000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	30419000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	18227000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-304147000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	141197000	USD
	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	-82489000	USD
	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	-1049000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-175932000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-1201306000	USD
	rwt	Payments For Origination Of Loans Held For Investment PaymentsForOriginationOfLoansHeldForInvestment	327494000	USD
	rwt	Payments For Origination Of Loans Held For Investment PaymentsForOriginationOfLoansHeldForInvestment	171915000	USD
	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	0	USD
	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	49489000	USD
	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	1574160000	USD
	us-gaap	Proceeds From Sale Of Finance Receivables ProceedsFromSaleOfFinanceReceivables	9422000	USD
	us-gaap	Proceeds From Collection Of Finance Receivables ProceedsFromCollectionOfFinanceReceivables	1652418000	USD
	us-gaap	Proceeds From Collection Of Finance Receivables ProceedsFromCollectionOfFinanceReceivables	1091652000	USD
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	106422000	USD
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	309839000	USD
	us-gaap	Proceeds From Collection Of Retained Interest In Securitized Receivables ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables	142990000	USD
	us-gaap	Proceeds From Collection Of Retained Interest In Securitized Receivables ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables	0	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	634709000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	487469000	USD
	rwt	Proceeds From Principal Repayments On Securities ProceedsFromPrincipalRepaymentsOnSecurities	19446000	USD
	rwt	Proceeds From Principal Repayments On Securities ProceedsFromPrincipalRepaymentsOnSecurities	62711000	USD
	rwt	Payments For Servicing Advance Investments PaymentsForServicingAdvanceInvestments	179419000	USD
	rwt	Payments For Servicing Advance Investments PaymentsForServicingAdvanceInvestments	69610000	USD
	rwt	Repayments Of Servicing Advance Investments RepaymentsOfServicingAdvanceInvestments	83124000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	600000	USD
	rwt	Repayments Of Servicing Advance Investments RepaymentsOfServicingAdvanceInvestments	150512000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	3714000	USD
	rwt	Paymentsfor Proceedsfrom Investment In Participation Inloan Warehouse Facility PaymentsforProceedsfromInvestmentInParticipationInloanWarehouseFacility	0	USD
	rwt	Paymentsfor Proceedsfrom Investment In Participation Inloan Warehouse Facility PaymentsforProceedsfromInvestmentInParticipationInloanWarehouseFacility	-38209000	USD
	rwt	Payments For Proceeds From Investment In Multifamily Loan Fund PaymentsForProceedsFromInvestmentInMultifamilyLoanFund	-40898000	USD
	rwt	Payments For Proceeds From Investment In Multifamily Loan Fund PaymentsForProceedsFromInvestmentInMultifamilyLoanFund	33090000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	19865000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	24989000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	3514545000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	915516000	USD
	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	3981572000	USD
	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	4009083000	USD
	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	5828972000	USD
	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	4435823000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	1343845000	USD
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	1020136000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	1037546000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	720651000	USD
	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	1251850000	USD
	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	387053000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	9526000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	7023000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	2640007000	USD
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	0	USD
	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	84336000	USD
	us-gaap	Payments For Proceeds From Derivative Instrument Financing Activities PaymentsForProceedsFromDerivativeInstrumentFinancingActivities	0	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	5791000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	426970000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	21659000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3009000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	67821000	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	0	USD
	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	868000	USD
	rwt	Consolidation Of Residential Loans Held In Securitization Trusts ConsolidationOfResidentialLoansHeldInSecuritizationTrusts	0	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	197000000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	94286000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	4650000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	1400000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-3105168000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	586859000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	233445000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	301069000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	290833000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	205077000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	524278000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	506146000	USD
	us-gaap	Interest Paid Net InterestPaidNet	364875000	USD
	us-gaap	Interest Paid Net InterestPaidNet	319036000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	218000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	6977000	USD
CY2020Q3	us-gaap	Transfers Of Financial Assets Accounted For As Sale Initial Fair Value Of Assets Obtained As Proceeds TransfersOfFinancialAssetsAccountedForAsSaleInitialFairValueOfAssetsObtainedAsProceeds	46560000	USD
CY2019Q3	us-gaap	Transfers Of Financial Assets Accounted For As Sale Initial Fair Value Of Assets Obtained As Proceeds TransfersOfFinancialAssetsAccountedForAsSaleInitialFairValueOfAssetsObtainedAsProceeds	7759000	USD
	rwt	Consolidation Of Residential Loans Held In Securitization Trusts ConsolidationOfResidentialLoansHeldInSecuritizationTrusts	1190995000	USD
	rwt	Consolidation Of Residential Asset Backed Securities ConsolidationOfResidentialAssetBackedSecurities	0	USD
	rwt	Consolidation Of Residential Asset Backed Securities ConsolidationOfResidentialAssetBackedSecurities	997783000	USD
	rwt	Consolidation Deconsolidation Of Multifamily Loans Held In Securitizations Trusts ConsolidationDeconsolidationOfMultifamilyLoansHeldInSecuritizationsTrusts	-3849779000	USD
	rwt	Consolidation Deconsolidation Of Multifamily Loans Held In Securitizations Trusts ConsolidationDeconsolidationOfMultifamilyLoansHeldInSecuritizationsTrusts	1481554000	USD
	rwt	Consolidation Deconsolidation Of Multifamily Asset Backed Securities ConsolidationDeconsolidationOfMultifamilyAssetBackedSecurities	-3706789000	USD
	rwt	Consolidation Deconsolidation Of Multifamily Asset Backed Securities ConsolidationDeconsolidationOfMultifamilyAssetBackedSecurities	1408002000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	770754000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	1361015000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	12547000	USD
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	5280000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5362000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	13016000	USD
	rwt	Operating Lease Liability Reduction From Lease Modification OperatingLeaseLiabilityReductionFromLeaseModification	1466000	USD
	rwt	Operating Lease Liability Reduction From Lease Modification OperatingLeaseLiabilityReductionFromLeaseModification	0	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	451000000	USD
CY2020Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	74000000	USD
CY2018	rwt	Number Of Partnerships Consolidated NumberOfPartnershipsConsolidated	2	partnership
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	94000000	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 making credit-sensitive investments in single-family residential and multifamily mortgages and related assets and engaging in mortgage banking activities. Our goal is to provide attractive returns to shareholders through a stable and growing stream of earnings and dividends, as well as through capital appreciation. 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 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 “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 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. On March 1, 2019, Redwood completed the acquisition of 5 Arches, LLC ("5 Arches"), at which time 5 Arches became a wholly-owned subsidiary of Redwood. On October 15, 2019, Redwood acquired CoreVest American Finance Lender, LLC and certain affiliated entities ("CoreVest"), at which time CoreVest became wholly owned by Redwood. 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
CY2020Q1	us-gaap	Deconsolidation Gain Or Loss Amount DeconsolidationGainOrLossAmount	-72000000	USD
	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>
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	3873000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	15304000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	12800000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	10091000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	7073000	USD
CY2020Q3	rwt	Finite Lived Intangible Asset Expected Amortization After Year Four FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour	11596000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	60737000	USD
CY2020Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	89000000	USD
CY2020Q1	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
CY2020Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	157230000	USD
CY2020Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	0	USD
CY2020Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	157230000	USD
CY2020Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	156967000	USD
CY2020Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	263000	USD
CY2020Q3	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	0	USD
CY2019Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	1690828000	USD
CY2019Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	0	USD
CY2019Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	1690828000	USD
CY2019Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	1548637000	USD
CY2019Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	141260000	USD
CY2019Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	931000	USD
CY2020Q1	us-gaap	Deconsolidation Gain Or Loss Amount DeconsolidationGainOrLossAmount	-72000000	USD
CY2018	rwt	Number Of Partnerships Consolidated NumberOfPartnershipsConsolidated	2	partnership
	us-gaap	Variable Interest Entity Ownership Percentage VariableInterestEntityOwnershipPercentage	0.80
CY2020Q3	rwt	Number Of Variable Interest Entities Acquired And Consolidated NumberOfVariableInterestEntitiesAcquiredAndConsolidated	49	investment
CY2019Q4	rwt	Number Of Variable Interest Entities Acquired And Consolidated NumberOfVariableInterestEntitiesAcquiredAndConsolidated	49	investment
CY2020Q3	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	158883000	USD
CY2019Q3	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	14549000	USD
	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	-606764000	USD
	rwt	Market Valuation Adjustments Net MarketValuationAdjustmentsNet	62720000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-225000000	USD
	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	397000000	USD
CY2020Q3	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	-4000000	USD
	rwt	Real Estate Owned Transferto Real Estate Owned Number Of Loans RealEstateOwnedTransfertoRealEstateOwnedNumberOfLoans	4	loan
CY2020Q1	rwt	Deconsolidation Of Multifamily Loans DeconsolidationOfMultifamilyLoans	3850000000	USD
CY2020Q3	us-gaap	Trading Securities TradingSecurities	144162000	USD
CY2019Q4	us-gaap	Trading Securities TradingSecurities	860540000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	207173000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	239334000	USD
CY2020Q3	us-gaap	Marketable Securities MarketableSecurities	351335000	USD
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	1099874000	USD
CY2020Q3	us-gaap	Trading Securities TradingSecurities	144162000	USD
CY2019Q4	us-gaap	Trading Securities TradingSecurities	860540000	USD
CY2020Q3	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	11000000	USD
	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	78000000	USD
CY2020Q3	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	16000000	USD
	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	721000000	USD
CY2019Q3	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	66000000	USD
	us-gaap	Payments To Acquire Trading Securities Heldforinvestment PaymentsToAcquireTradingSecuritiesHeldforinvestment	335000000	USD
CY2019Q3	us-gaap	Proceeds From Sale Of Trading Securities Heldforinvestment ProceedsFromSaleOfTradingSecuritiesHeldforinvestment	236000000	USD
CY2019Q3	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	15000000	USD
	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	56000000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	207173000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	239334000	USD
CY2020Q3	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	25000000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	57000000	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	55000000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	5000000	USD
CY2019Q3	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	12000000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	21000000	USD
CY2019Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	15000000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	82000000	USD
CY2019Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	4000000	USD
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	13000000	USD
CY2020Q3	rwt	Debt Securities Available For Sale Principal Balance DebtSecuritiesAvailableForSalePrincipalBalance	289659000	USD
CY2020Q3	rwt	Debt Securities Available For Sale Credit Reserve DebtSecuritiesAvailableForSaleCreditReserve	43186000	USD
CY2020Q3	rwt	Debt Securities Available For Sale Unamortized Discounts Premiums DebtSecuritiesAvailableForSaleUnamortizedDiscountsPremiums	99221000	USD
CY2020Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	147252000	USD
CY2020Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	63455000	USD
CY2020Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	2507000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	1027000	USD
CY2020Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	207173000	USD
CY2019Q4	rwt	Debt Securities Available For Sale Principal Balance DebtSecuritiesAvailableForSalePrincipalBalance	304077000	USD
CY2019Q4	rwt	Debt Securities Available For Sale Credit Reserve DebtSecuritiesAvailableForSaleCreditReserve	32940000	USD
CY2019Q4	rwt	Debt Securities Available For Sale Unamortized Discounts Premiums DebtSecuritiesAvailableForSaleUnamortizedDiscountsPremiums	124255000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	146882000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	92481000	USD
CY2020Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	8000000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	29000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	239334000	USD
CY2020Q3	rwt	Number Of Available For Sale Securities NumberOfAvailableForSaleSecurities	96	investment
CY2020Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	7	investment
CY2020Q3	rwt	Number Of Securities Continuous Unrealized Loss Position More Than Twelve Months NumberOfSecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonths	0	investment
CY2019Q4	rwt	Number Of Available For Sale Securities NumberOfAvailableForSaleSecurities	107	investment
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	1	investment
CY2019Q4	rwt	Number Of Securities Continuous Unrealized Loss Position More Than Twelve Months NumberOfSecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonths	1	investment
CY2020Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	3000000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	1000000	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	1471000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	339000	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	1864000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	-783000	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	-837000	USD
CY2020Q3	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
CY2020Q3	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
CY2020Q3	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
CY2020Q3	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
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossRecovery	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossRecovery	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	1027000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	1027000	USD
CY2020Q3	rwt	Availableforsale Securities Gross Realized Gain Loss On Sales And Calls AvailableforsaleSecuritiesGrossRealizedGainLossOnSalesAndCalls	0	USD
CY2019Q3	rwt	Availableforsale Securities Gross Realized Gain Loss On Sales And Calls AvailableforsaleSecuritiesGrossRealizedGainLossOnSalesAndCalls	4714000	USD
	rwt	Availableforsale Securities Gross Realized Gain Loss On Sales And Calls AvailableforsaleSecuritiesGrossRealizedGainLossOnSalesAndCalls	4635000	USD
	rwt	Availableforsale Securities Gross Realized Gain Loss On Sales And Calls AvailableforsaleSecuritiesGrossRealizedGainLossOnSalesAndCalls	18227000	USD
CY2020Q3	us-gaap	Other Investments OtherInvestments	384628000	USD
CY2019Q4	us-gaap	Other Investments OtherInvestments	358130000	USD
CY2018	rwt	Number Of Partnerships Consolidated NumberOfPartnershipsConsolidated	2	partnership
CY2020Q3	rwt	Commitment To Fund Partnership CommitmentToFundPartnership	94000000	USD
CY2020Q3	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	242059000	USD
CY2019Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	151582000	USD
CY2020Q3	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	13097000	USD
CY2020Q3	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	2575858000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Net DerivativeFairValueOfDerivativeNet	-127723000	USD
CY2019Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	13589356000	USD
CY2020Q3	us-gaap	Interest Receivable InterestReceivable	39330000	USD
CY2019Q4	us-gaap	Interest Receivable InterestReceivable	71058000	USD
CY2020Q3	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	25767000	USD
CY2019Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	23330000	USD
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	13487000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	11866000	USD
CY2020Q3	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	8535000	USD
CY2019Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	9462000	USD
CY2020Q3	us-gaap	Pledged Assets Separately Reported Other Assets Pledged As Collateral At Fair Value PledgedAssetsSeparatelyReportedOtherAssetsPledgedAsCollateralAtFairValue	8172000	USD
CY2019Q4	us-gaap	Pledged Assets Separately Reported Other Assets Pledged As Collateral At Fair Value PledgedAssetsSeparatelyReportedOtherAssetsPledgedAsCollateralAtFairValue	32945000	USD
CY2020Q3	us-gaap	Income Tax Receivable IncomeTaxReceivable	8148000	USD
CY2019Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	36000	USD
CY2020Q3	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	5000000	USD
CY2019Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	43393000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4408000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4901000	USD
CY2020Q3	us-gaap	Margin Deposit Assets MarginDepositAssets	3809000	USD
CY2019Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	209776000	USD
CY2020Q3	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	7617000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	12554000	USD
CY2020Q3	us-gaap	Other Assets OtherAssets	124273000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	419321000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	12000000	USD
CY2020Q3	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	34225000	USD
CY2019Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	60655000	USD
CY2020Q3	us-gaap	Minority Interest In Limited Partnerships MinorityInterestInLimitedPartnerships	17492000	USD
CY2019Q4	us-gaap	Minority Interest In Limited Partnerships MinorityInterestInLimitedPartnerships	13189000	USD
CY2020Q3	us-gaap	Employee Related Liabilities Current And Noncurrent EmployeeRelatedLiabilitiesCurrentAndNoncurrent	17127000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current And Noncurrent EmployeeRelatedLiabilitiesCurrentAndNoncurrent	33888000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	15123000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	13443000	USD
CY2020Q3	rwt	Business Combination Deferred Consideration BusinessCombinationDeferredConsideration	14442000	USD
CY2019Q4	rwt	Business Combination Deferred Consideration BusinessCombinationDeferredConsideration	0	USD
CY2020Q3	us-gaap	Guaranty Liabilities GuarantyLiabilities	11264000	USD
CY2019Q4	us-gaap	Guaranty Liabilities GuarantyLiabilities	14009000	USD
CY2020Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	8717000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	5468000	USD
CY2020Q3	rwt	Mortgage Loan On Real Estate Repurchase Reserve MortgageLoanOnRealEstateRepurchaseReserve	8565000	USD
CY2019Q4	rwt	Mortgage Loan On Real Estate Repurchase Reserve MortgageLoanOnRealEstateRepurchaseReserve	4268000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	18000000	USD
CY2020Q3	rwt	Bridge Loan Holdback BridgeLoanHoldback	6350000	USD
CY2019Q4	rwt	Bridge Loan Holdback BridgeLoanHoldback	10682000	USD
CY2020Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	5152000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	5152000	USD
CY2020Q3	rwt	Accrued Operating Expenses AccruedOperatingExpenses	3922000	USD
CY2019Q4	rwt	Accrued Operating Expenses AccruedOperatingExpenses	4358000	USD
CY2020Q3	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	0	USD
CY2019Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	28484000	USD
CY2020Q3	rwt	Other Liabilities Miscellaneous OtherLiabilitiesMiscellaneous	13610000	USD
CY2019Q4	rwt	Other Liabilities Miscellaneous OtherLiabilitiesMiscellaneous	13297000	USD
CY2020Q3	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	155989000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	206893000	USD
CY2020Q3	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	9000000	USD
CY2020Q3	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	13000000	USD
	us-gaap	Principal Investment Gains Losses PrincipalInvestmentGainsLosses	-300000	USD
CY2020Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	482761000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	2329145000	USD
CY2020Q3	us-gaap	Pledged Assets Separately Reported Securities Pledged As Collateral At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedAsCollateralAtFairValue	114308000	USD
CY2019Q4	us-gaap	Pledged Assets Separately Reported Securities Pledged As Collateral At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedAsCollateralAtFairValue	1491986000	USD
CY2020Q3	rwt	Other Assets Pledged As Collateral OtherAssetsPledgedAsCollateral	0	USD
CY2019Q4	rwt	Other Assets Pledged As Collateral OtherAssetsPledgedAsCollateral	16252000	USD
CY2020Q3	rwt	Shortterm Debt Pledgedas Collateral ShorttermDebtPledgedasCollateral	319836000	USD
CY2019Q4	rwt	Shortterm Debt Pledgedas Collateral ShorttermDebtPledgedasCollateral	2698366000	USD
CY2020Q3	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	313000000	USD
	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	1420000000	USD
CY2020Q3	us-gaap	Interest Payable Current InterestPayableCurrent	1000000	USD
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	6000000	USD
CY2020Q3	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	10000000	USD
CY2020Q3	us-gaap	Financial Instruments Owned And Pledged As Collateral At Fair Value FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue	3000000	USD
CY2019Q4	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2020Q3	us-gaap	Line Of Credit LineOfCredit	0	USD
CY2020Q3	rwt	Lessee Number Of Leases LesseeNumberOfLeases	7	lease
CY2020Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	482761000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	22025000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	33686000	USD
CY2020Q3	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	0	USD
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	2000000000.00	USD
CY2020Q3	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	5000000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	3000000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	2000000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	930000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2949000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2427000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1913000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1917000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	8039000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	18175000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	3052000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	15123000	USD
	rwt	Lessee Operating Lease Numberof New Leases LesseeOperatingLeaseNumberofNewLeases	3	lease
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	15000000	USD
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	13000000	USD
CY2020Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y
CY2020Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.050
CY2018Q4	rwt	Commitment To Fund Partnership Number Of Partnerships CommitmentToFundPartnershipNumberOfPartnerships	2	partnership
CY2020Q3	us-gaap	Guaranty Liabilities GuarantyLiabilities	11000000	USD
CY2020Q3	rwt	Guarantee Obligation Credit Reserve GuaranteeObligationCreditReserve	5000000	USD
CY2020Q3	rwt	Special Purpose Entities Assets SpecialPurposeEntitiesAssets	47000000	USD
CY2019Q4	rwt	Special Purpose Entities Assets SpecialPurposeEntitiesAssets	48000000	USD
CY2020Q3	rwt	Special Purpose Entities Liabilities SpecialPurposeEntitiesLiabilities	11000000	USD
CY2019Q4	rwt	Special Purpose Entities Liabilities SpecialPurposeEntitiesLiabilities	14000000	USD
CY2020Q3	rwt	Mortgage Loan On Real Estate Repurchase Reserve MortgageLoanOnRealEstateRepurchaseReserve	9000000	USD
CY2019Q4	rwt	Mortgage Loan On Real Estate Repurchase Reserve MortgageLoanOnRealEstateRepurchaseReserve	4000000	USD
	rwt	Mortgage Loans On Real Estate Repurchase Requests MortgageLoansOnRealEstateRepurchaseRequests	8	repurchase_request
	rwt	Mortgage Loans On Real Estate Repurchase Requests MortgageLoansOnRealEstateRepurchaseRequests	10	repurchase_request
	rwt	Mortgage Loans On Real Estate Number Of Loans Repurchased MortgageLoansOnRealEstateNumberOfLoansRepurchased	0	loan
	rwt	Mortgage Loans On Real Estate Number Of Loans Repurchased MortgageLoansOnRealEstateNumberOfLoansRepurchased	0	loan
	rwt	Mortgage Loans On Real Estate Repurchase Provision MortgageLoansOnRealEstateRepurchaseProvision	4000000	USD
	rwt	Mortgage Loans On Real Estate Repurchase Provision MortgageLoansOnRealEstateRepurchaseProvision	-200000	USD
CY2020Q3	us-gaap	Litigation Reserve LitigationReserve	2000000	USD
CY2020Q2	us-gaap	Loss Contingency Damages Sought Value LossContingencyDamagesSoughtValue	2000000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Unrealized Gain Loss DebtSecuritiesAvailableForSaleUnrealizedGainLoss	8000000	USD
	us-gaap	Debt Securities Available For Sale Unrealized Gain Loss DebtSecuritiesAvailableForSaleUnrealizedGainLoss	-16000000	USD
	rwt	Stock Issued During Period Value Dividend Reinvestment And Stock Purchase Plan StockIssuedDuringPeriodValueDividendReinvestmentAndStockPurchasePlan	6000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	141812000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	34310000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
	us-gaap	Net Income Loss NetIncomeLoss	120040000	USD
CY2020Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	4067000	USD
CY2019Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	856000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	1427000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	3260000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	137745000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	33454000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-637569000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	116780000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	113403102	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	101872126	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	113952308	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97214064	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.21
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.33
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-5.60
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.20
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	141812000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	34310000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-636142000	USD
	us-gaap	Net Income Loss NetIncomeLoss	120040000	USD
CY2020Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	3512000	USD
CY2019Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	1036000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	1427000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	3625000	USD
CY2020Q3	rwt	Interest And Gain Loss On Extinguishment Of Convertible Debt Net Of Tax InterestAndGainLossOnExtinguishmentOfConvertibleDebtNetOfTax	6990000	USD
CY2019Q3	rwt	Interest And Gain Loss On Extinguishment Of Convertible Debt Net Of Tax InterestAndGainLossOnExtinguishmentOfConvertibleDebtNetOfTax	8887000	USD
	rwt	Interest And Gain Loss On Extinguishment Of Convertible Debt Net Of Tax InterestAndGainLossOnExtinguishmentOfConvertibleDebtNetOfTax	0	USD
	rwt	Interest And Gain Loss On Extinguishment Of Convertible Debt Net Of Tax InterestAndGainLossOnExtinguishmentOfConvertibleDebtNetOfTax	26271000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	145290000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	42161000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-637569000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	142686000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	113403102	shares
CY2019Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	101872126	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	113952308	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	97214064	shares
CY2020Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2019Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	362743	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	261155	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	28566875	shares
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	34287840	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	33727470	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	141969977	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	136522709	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	113952308	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	131202689	shares
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.02
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-5.60
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.09
CY2020Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	20000000	USD
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	32328000	USD
	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	10629000	USD
	rwt	Sharebased Compensation Arrangementby Sharebased Payment Award Equity Instruments Otherthan Options Valuation Adjustment SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsValuationAdjustment	-7352000	USD
	rwt	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost Forfeitures SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCostForfeitures	8071000	USD
	rwt	Allocated Sharebased Compensation Expense Including Restructuring AllocatedSharebasedCompensationExpenseIncludingRestructuring	7896000	USD
CY2020Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	19638000	USD
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y
CY2020Q1	rwt	Sharebased Payment Arrangement Reversalof Expense SharebasedPaymentArrangementReversalofExpense	1000000	USD
CY2020Q3	rwt	Employee Stock Purchase Plan Number Of Shares Authorized EmployeeStockPurchasePlanNumberOfSharesAuthorized	600000	shares
	rwt	Employee Stock Purchase Plan Number Of Shares Purchased By Employee EmployeeStockPurchasePlanNumberOfSharesPurchasedByEmployee	477142	shares
CY2019	rwt	Employee Stock Purchase Plan Number Of Shares Purchased By Employee EmployeeStockPurchasePlanNumberOfSharesPurchasedByEmployee	430772	shares
CY2020Q3	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	59395000	USD
CY2019Q3	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	9515000	USD
	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	24511000	USD
	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	40984000	USD
CY2020Q3	rwt	Fhlbc Capital Stock Dividend FHLBCCapitalStockDividend	116000	USD
CY2020Q3	rwt	Mortgage Servicing Rights Income Loss Net MortgageServicingRightsIncomeLossNet	-2362000	USD
CY2019Q3	rwt	Mortgage Servicing Rights Income Loss Net MortgageServicingRightsIncomeLossNet	431000	USD
	rwt	Mortgage Servicing Rights Income Loss Net MortgageServicingRightsIncomeLossNet	-5595000	USD
	rwt	Mortgage Servicing Rights Income Loss Net MortgageServicingRightsIncomeLossNet	2342000	USD
CY2020Q3	rwt	Fee Income Risk Sharing Agreement FeeIncomeRiskSharingAgreement	1200000	USD
CY2019Q3	rwt	Fee Income Risk Sharing Agreement FeeIncomeRiskSharingAgreement	905000	USD
	rwt	Fee Income Risk Sharing Agreement FeeIncomeRiskSharingAgreement	3146000	USD
	rwt	Fee Income Risk Sharing Agreement FeeIncomeRiskSharingAgreement	2351000	USD
CY2019Q3	rwt	Fhlbc Capital Stock Dividend FHLBCCapitalStockDividend	541000	USD
	rwt	Fhlbc Capital Stock Dividend FHLBCCapitalStockDividend	1201000	USD
	rwt	Fhlbc Capital Stock Dividend FHLBCCapitalStockDividend	1623000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	341000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	560000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	615000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	732000	USD
CY2020Q3	us-gaap	Property Management Fee Revenue PropertyManagementFeeRevenue	688000	USD
CY2019Q3	us-gaap	Property Management Fee Revenue PropertyManagementFeeRevenue	1344000	USD
	us-gaap	Property Management Fee Revenue PropertyManagementFeeRevenue	2206000	USD
	us-gaap	Property Management Fee Revenue PropertyManagementFeeRevenue	3298000	USD
CY2020Q3	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain	0	USD
CY2019Q3	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain	0	USD
	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain	0	USD
	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain	2441000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-97000	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	575000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2406000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1053000	USD
CY2020Q3	us-gaap	Other Income OtherIncome	-114000	USD
CY2019Q3	us-gaap	Other Income OtherIncome	4356000	USD
	us-gaap	Other Income OtherIncome	3979000	USD
	us-gaap	Other Income OtherIncome	13840000	USD
CY2020Q3	rwt	Fixed Compensation Expense FixedCompensationExpense	10103000	USD
CY2019Q3	rwt	Fixed Compensation Expense FixedCompensationExpense	9391000	USD
	rwt	Fixed Compensation Expense FixedCompensationExpense	36605000	USD
	rwt	Fixed Compensation Expense FixedCompensationExpense	26740000	USD
CY2020Q3	rwt	Variable Compensation Expense VariableCompensationExpense	5882000	USD
CY2019Q3	rwt	Variable Compensation Expense VariableCompensationExpense	3489000	USD
	rwt	Variable Compensation Expense VariableCompensationExpense	9171000	USD
	rwt	Variable Compensation Expense VariableCompensationExpense	11356000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2639000	USD
CY2019Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3155000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7896000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	10132000	USD
CY2020Q3	rwt	Acquisition Related Sharebased Payment Arrangement Expense AcquisitionRelatedSharebasedPaymentArrangementExpense	1212000	USD
CY2019Q3	rwt	Acquisition Related Sharebased Payment Arrangement Expense AcquisitionRelatedSharebasedPaymentArrangementExpense	0	USD
	rwt	Acquisition Related Sharebased Payment Arrangement Expense AcquisitionRelatedSharebasedPaymentArrangementExpense	3636000	USD
	rwt	Acquisition Related Sharebased Payment Arrangement Expense AcquisitionRelatedSharebasedPaymentArrangementExpense	0	USD
CY2020Q3	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	2145000	USD
CY2019Q3	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	3230000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	7752000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	7594000	USD
CY2020Q3	rwt	Office Costs OfficeCosts	1859000	USD
CY2019Q3	rwt	Office Costs OfficeCosts	1517000	USD
	rwt	Office Costs OfficeCosts	5854000	USD
	rwt	Office Costs OfficeCosts	4406000	USD
CY2020Q3	us-gaap	Professional Fees ProfessionalFees	1601000	USD
CY2019Q3	us-gaap	Professional Fees ProfessionalFees	1767000	USD
	us-gaap	Professional Fees ProfessionalFees	6605000	USD
	us-gaap	Professional Fees ProfessionalFees	3852000	USD
CY2020Q3	us-gaap	Other General Expense OtherGeneralExpense	831000	USD
CY2019Q3	us-gaap	Other General Expense OtherGeneralExpense	482000	USD
	us-gaap	Other General Expense OtherGeneralExpense	2128000	USD
	us-gaap	Other General Expense OtherGeneralExpense	1701000	USD
CY2020Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	1358000	USD
CY2019Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	1868000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	5185000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	4941000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27630000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	24899000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	84832000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	70722000	USD
CY2020Q3	rwt	Commissions On Loan Acquisitions CommissionsOnLoanAcquisitions	879000	USD
CY2019Q3	rwt	Commissions On Loan Acquisitions CommissionsOnLoanAcquisitions	659000	USD
	rwt	Commissions On Loan Acquisitions CommissionsOnLoanAcquisitions	3027000	USD
	rwt	Commissions On Loan Acquisitions CommissionsOnLoanAcquisitions	1432000	USD
CY2020Q3	rwt	Underwriting Costs Associated With Loan Acquisitions UnderwritingCostsAssociatedWithLoanAcquisitions	771000	USD
CY2019Q3	rwt	Underwriting Costs Associated With Loan Acquisitions UnderwritingCostsAssociatedWithLoanAcquisitions	1074000	USD
	rwt	Underwriting Costs Associated With Loan Acquisitions UnderwritingCostsAssociatedWithLoanAcquisitions	3289000	USD
	rwt	Underwriting Costs Associated With Loan Acquisitions UnderwritingCostsAssociatedWithLoanAcquisitions	3184000	USD
CY2020Q3	rwt	Transfer And Hold Costs Associated With Loan Acquisitions TransferAndHoldCostsAssociatedWithLoanAcquisitions	508000	USD
CY2019Q3	rwt	Transfer And Hold Costs Associated With Loan Acquisitions TransferAndHoldCostsAssociatedWithLoanAcquisitions	183000	USD
	rwt	Transfer And Hold Costs Associated With Loan Acquisitions TransferAndHoldCostsAssociatedWithLoanAcquisitions	1400000	USD
	rwt	Transfer And Hold Costs Associated With Loan Acquisitions TransferAndHoldCostsAssociatedWithLoanAcquisitions	891000	USD
CY2020Q3	rwt	Loan Acquisition Costs LoanAcquisitionCosts	2158000	USD
CY2019Q3	rwt	Loan Acquisition Costs LoanAcquisitionCosts	1916000	USD
	rwt	Loan Acquisition Costs LoanAcquisitionCosts	7716000	USD
	rwt	Loan Acquisition Costs LoanAcquisitionCosts	5507000	USD
CY2020Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	88675000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020Q3	rwt	Amortizationof Purchase Related Intangible Assets AmortizationofPurchaseRelatedIntangibleAssets	3873000	USD
CY2019Q3	rwt	Amortizationof Purchase Related Intangible Assets AmortizationofPurchaseRelatedIntangibleAssets	1897000	USD
	rwt	Amortizationof Purchase Related Intangible Assets AmortizationofPurchaseRelatedIntangibleAssets	12052000	USD
	rwt	Amortizationof Purchase Related Intangible Assets AmortizationofPurchaseRelatedIntangibleAssets	4608000	USD
CY2020Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	135000	USD
CY2019Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	236000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	581000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	547000	USD
CY2020Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	3780000	USD
CY2019Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	398000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	2978000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	866000	USD
CY2020Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	7788000	USD
CY2019Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	2531000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	104286000	USD
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	6021000	USD
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	37576000	USD
CY2019Q3	us-gaap	Operating Expenses OperatingExpenses	29346000	USD
	us-gaap	Operating Expenses OperatingExpenses	196834000	USD
	us-gaap	Operating Expenses OperatingExpenses	82250000	USD
CY2020Q3	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	3000000	USD
	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	3000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-13000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3000000	USD
	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	0.236
	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0.025
	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.040
	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.025
	us-gaap	Effective Income Tax Rate Reconciliation Deductions Dividends EffectiveIncomeTaxRateReconciliationDeductionsDividends	0
	us-gaap	Effective Income Tax Rate Reconciliation Deductions Dividends EffectiveIncomeTaxRateReconciliationDeductionsDividends	0.221
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.020
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.025
	us-gaap	Effective Income Tax Rate Reconciliation Deductions Dividends EffectiveIncomeTaxRateReconciliationDeductionsDividends	0
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
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	-19378000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	88675000	USD
CY2019Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	150117000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	116604000	USD
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	33513000	USD
CY2019Q3	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	9515000	USD
CY2019Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	11444000	USD
CY2019Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	4356000	USD
CY2019Q3	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	4714000	USD
CY2019Q3	us-gaap	Noninterest Income NoninterestIncome	30029000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	24899000	USD
CY2019Q3	rwt	Loan Acquisition Costs LoanAcquisitionCosts	1916000	USD
CY2019Q3	us-gaap	Other Expenses OtherExpenses	2531000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-114000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	34310000	USD
CY2019Q3	us-gaap	Adjustment For Amortization AdjustmentForAmortization	-718000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	429700000	USD
	us-gaap	Interest Expense InterestExpense	332100000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	97600000	USD
	rwt	Mortgage Banking Activities Net MortgageBankingActivitiesNet	40984000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	34741000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	13840000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	18227000	USD
	us-gaap	Noninterest Income NoninterestIncome	107792000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	70722000	USD
	rwt	Loan Acquisition Costs LoanAcquisitionCosts	5507000	USD
	us-gaap	Other Expenses OtherExpenses	6021000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3102000	USD
	us-gaap	Net Income Loss NetIncomeLoss	120040000	USD
	us-gaap	Adjustment For Amortization AdjustmentForAmortization	-890000	USD
CY2020Q3	us-gaap	Marketable Securities MarketableSecurities	351335000	USD
CY2020Q3	us-gaap	Other Investments OtherInvestments	384628000	USD
CY2020Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	60737000	USD
CY2020Q3	us-gaap	Assets Assets	10402412000	USD
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	1099874000	USD
CY2019Q4	us-gaap	Other Investments OtherInvestments	358130000	USD
CY2019Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	161464000	USD
CY2019Q4	us-gaap	Assets Assets	17995440000	USD

Files In Submission

Name	View Source	Status
0000930236-20-000038-index-headers.html	Edgar Link	pending
0000930236-20-000038-index.html	Edgar Link	pending
0000930236-20-000038.txt	Edgar Link	pending
0000930236-20-000038-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R101.htm	Edgar Link	pending
R102.htm	Edgar Link	pending
R103.htm	Edgar Link	pending
R104.htm	Edgar Link	pending
R105.htm	Edgar Link	pending
R106.htm	Edgar Link	pending
R107.htm	Edgar Link	pending
R108.htm	Edgar Link	pending
R109.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R110.htm	Edgar Link	pending
R111.htm	Edgar Link	pending
R112.htm	Edgar Link	pending
R113.htm	Edgar Link	pending
R114.htm	Edgar Link	pending
R115.htm	Edgar Link	pending
R116.htm	Edgar Link	pending
R117.htm	Edgar Link	pending
R118.htm	Edgar Link	pending
R119.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R120.htm	Edgar Link	pending
R121.htm	Edgar Link	pending
R122.htm	Edgar Link	pending
R123.htm	Edgar Link	pending
R124.htm	Edgar Link	pending
R125.htm	Edgar Link	pending
R126.htm	Edgar Link	pending
R127.htm	Edgar Link	pending
R128.htm	Edgar Link	pending
R129.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
rwt-20200930.htm	Edgar Link	pending
rwt-20200930.xsd	Edgar Link	pending
rwt-20200930_cal.xml	Edgar Link	unprocessable
rwt-20200930_def.xml	Edgar Link	unprocessable
rwt-20200930_htm.xml	Edgar Link	completed
rwt-20200930_lab.xml	Edgar Link	unprocessable
rwt-20200930_pre.xml	Edgar Link	unprocessable
rwtex1013q20.htm	Edgar Link	pending
rwtex1023q20.htm	Edgar Link	pending
rwtex1033q20.htm	Edgar Link	pending
rwtex3113q20.htm	Edgar Link	pending
rwtex3123q20.htm	Edgar Link	pending
rwtex3213q20.htm	Edgar Link	pending
rwtex3223q20.htm	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$RWT
REDWOOD TRUST INC Stock $rwt

2020 Q4 Form 10-Q Financial Statement

#000093023620000038 Filed on November 06, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$RWT REDWOOD TRUST INC Stock $rwt

2020 Q4 Form 10-Q Financial Statement

#000093023620000038 Filed on November 06, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$RWT
REDWOOD TRUST INC Stock $rwt