$STWD
STARWOOD PROPERTY TRUST, INC. Stock $stwd

$stwd Overview Financials Valuation SEC Filings Company Website

2021 Q3 Form 10-Q Financial Statement

#000162828021015669 Filed on August 05, 2021

Income Statement

Concept	2021 Q3	2021 Q2	2020 Q2
Revenue	$302.3M	$290.9M	$265.6M
YoY Change	13.03%	9.51%	-14.65%
Cost Of Revenue	$139.3M	$138.9M	$124.6M
YoY Change	16.93%	11.48%	-18.35%
Gross Profit	$163.0M	$152.0M	$141.0M
YoY Change	9.93%	7.78%	-11.04%
Gross Profit Margin	53.93%	52.25%	53.09%
Selling, General & Admin	$70.38M	$76.00M	$62.30M
YoY Change	2.0%	21.98%	-8.65%
% of Gross Profit	43.17%	50.01%	44.18%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$22.52M	$22.63M	$23.20M
YoY Change	-4.17%	-2.44%	-18.6%
% of Gross Profit	13.81%	14.89%	16.45%
Operating Expenses	$91.88M	$86.63M	$96.00M
YoY Change	3.01%	-9.76%	-3.81%
Operating Profit	$71.15M	$65.33M	$45.00M
YoY Change	20.38%	45.19%	-23.34%
Interest Expense	$115.5M	$109.7M	$101.5M
YoY Change	20.37%	8.04%	-22.0%
% of Operating Profit	162.38%	167.83%	225.54%
Other Income/Expense, Net	$77.06M	$58.10M	$108.3M
YoY Change	-36.48%	-46.34%	38.36%
Pretax Income	$148.0M	$123.0M	$151.7M
YoY Change	-17.59%	-18.88%	11.53%
Income Tax	$7.501M	-$3.353M	-$1.298M
% Of Pretax Income	5.07%	-2.73%	-0.86%
Net Earnings	$128.6M	$116.3M	$139.7M
YoY Change	-15.3%	-16.72%	9.95%
Net Earnings / Revenue	42.54%	39.99%	52.58%
Basic Earnings Per Share	$0.44	$0.40	$0.49
Diluted Earnings Per Share	$0.44	$0.40	$0.49
COMMON SHARES
Basic Shares Outstanding	288.3M shares	287.0M	282.3M
Diluted Shares Outstanding	295.4M shares	294.6M shares	291.3M shares

Balance Sheet

Concept	2021 Q3	2021 Q2	2020 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$273.3M	$254.6M	$1.100B
YoY Change	-75.7%	-76.85%	-7.1%
Cash & Equivalents	$273.3M	$254.6M	$347.7M
Short-Term Investments			$752.0M
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$381.4M	$368.4M	$420.0M
YoY Change	-16.72%	-12.29%	6.33%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.229B	$2.244B	$2.224B
YoY Change	0.94%	0.88%	-19.77%
Goodwill	$259.8M	$259.8M	$259.8M
YoY Change	0.0%	0.0%	0.0%
Intangibles	$65.12M	$65.19M	$76.29M
YoY Change	-12.16%	-14.55%	-41.08%
Long-Term Investments	$61.83M	$64.62M	$57.49M
YoY Change	5.65%	12.41%	-42.63%
Other Assets	$110.5M	$106.0M	$176.0M
YoY Change	-15.67%	-39.77%	-3.3%
Total Long-Term Assets	$81.60B	$80.94B	$79.14B
YoY Change	1.8%	2.28%	9.07%
TOTAL ASSETS
Total Short-Term Assets	$381.4M	$368.4M	$420.0M
Total Long-Term Assets	$81.60B	$80.94B	$79.14B
Total Assets	$81.98B	$81.31B	$79.56B
YoY Change	1.69%	2.2%	9.06%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$210.1M	$182.2M	$212.0M
YoY Change	4.52%	-14.04%	-4.07%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$273.6M	$407.7M	$0.00
YoY Change	241.98%		-100.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$646.8M	$755.8M	$372.0M
YoY Change	46.66%	103.18%	-22.01%
LONG-TERM LIABILITIES
Long-Term Debt	$15.58B	$13.67B	$11.70B
YoY Change	25.62%	16.83%	5.27%
Other Long-Term Liabilities	$60.91B	$62.03B	$62.62B
YoY Change	-3.15%	-0.94%	10.92%
Total Long-Term Liabilities	$76.49B	$75.70B	$74.32B
YoY Change	1.59%	1.86%	9.99%
TOTAL LIABILITIES
Total Short-Term Liabilities	$646.8M	$755.8M	$372.0M
Total Long-Term Liabilities	$76.49B	$75.70B	$74.32B
Total Liabilities	$77.13B	$76.46B	$74.69B
YoY Change	1.85%	2.36%	9.77%
SHAREHOLDERS EQUITY
Retained Earnings	-$688.0M	-$677.4M	-$614.1M
YoY Change	14.85%	10.3%	45.57%
Common Stock	$5.273B	$5.251B	$5.196B
YoY Change	1.34%	1.06%	1.76%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$4.488B	$4.477B	$4.492B
YoY Change
Total Liabilities & Shareholders Equity	$81.98B	$81.31B	$79.56B
YoY Change	1.69%	2.2%	9.06%

Cashflow Statement

Concept	2021 Q3	2021 Q2	2020 Q2
OPERATING ACTIVITIES
Net Income	$128.6M	$116.3M	$139.7M
YoY Change	-15.3%	-16.72%	9.95%
Depreciation, Depletion And Amortization	$22.52M	$22.63M	$23.20M
YoY Change	-4.17%	-2.44%	-18.6%
Cash From Operating Activities	-$749.7M	$17.19M	$579.0M
YoY Change	207.78%	-97.03%	-248.39%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	-$651.7M	-$246.5M	$213.4M
YoY Change	97.96%	-215.53%	-50.42%
Cash From Investing Activities	-$651.7M	-$246.5M	$213.4M
YoY Change	97.96%	-215.53%	-50.42%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	1.425B	120.6M	-1.200B
YoY Change	154.65%	-110.06%	1620.95%
NET CHANGE
Cash From Operating Activities	-749.7M	17.19M	579.0M
Cash From Investing Activities	-651.7M	-246.5M	213.4M
Cash From Financing Activities	1.425B	120.6M	-1.200B
Net Change In Cash	23.31M	-108.7M	-407.1M
YoY Change	-275.3%	-73.3%	1280.0%
FREE CASH FLOW
Cash From Operating Activities	-$749.7M	$17.19M	$579.0M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0001465128
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Amendment Flag AmendmentFlag	false
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201613Member
CY2020	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	stwd:AccountingStandardsUpdate202006Member
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-06-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-34436
	dei	Entity Registrant Name EntityRegistrantName	Starwood Property Trust, Inc.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	27-0247747
	dei	Entity Address Address Line1 EntityAddressAddressLine1	591 West Putnam Avenue
	dei	Entity Address City Or Town EntityAddressCityOrTown	Greenwich
	dei	Entity Address State Or Province EntityAddressStateOrProvince	CT
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	06830
	dei	City Area Code CityAreaCode	203
	dei	Local Phone Number LocalPhoneNumber	422-7700
	dei	Security12b Title Security12bTitle	Common stock, $0.01 par value per share
	dei	Trading Symbol TradingSymbol	STWD
	dei	Security Exchange Name SecurityExchangeName	NYSE
	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
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	288278083	shares
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	254567000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	563217000	USD
CY2021Q2	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	106009000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	158945000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	59825000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	77444000	USD
CY2021Q2	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	142706000	USD
CY2020Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	90684000	USD
CY2021Q2	us-gaap	Notes Receivable Net NotesReceivableNet	12763372000	USD
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CY2021Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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	us-gaap	Revenues Revenues	578097000	USD
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	stwd	Acquisition And Investment Pursuit Costs AcquisitionAndInvestmentPursuitCosts	592000	USD
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	us-gaap	Depreciation And Amortization DepreciationAndAmortization	44951000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	47401000	USD
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	stwd	Provision For Loan Losses Net ProvisionForLoanLossesNet	-11800000	USD
	stwd	Provision For Loan Losses Net ProvisionForLoanLossesNet	58871000	USD
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CY2020Q2	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-102000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-685000	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-490000	USD
CY2021Q2	stwd	Reo Assets As Percent Of Consolidated Vie Assets ReoAssetsAsPercentOfConsolidatedVieAssets	0.02
CY2021Q2	us-gaap	Costs And Expenses CostsAndExpenses	225939000	USD
CY2020Q2	us-gaap	Costs And Expenses CostsAndExpenses	222232000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	458818000	USD
	us-gaap	Costs And Expenses CostsAndExpenses	523847000	USD
CY2021Q2	us-gaap	Variable Interest Entity Activity Between Vie And Entity Income Or Loss Before Tax VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax	12509000	USD
CY2020Q2	us-gaap	Variable Interest Entity Activity Between Vie And Entity Income Or Loss Before Tax VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax	51261000	USD
	us-gaap	Variable Interest Entity Activity Between Vie And Entity Income Or Loss Before Tax VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax	52254000	USD
	us-gaap	Variable Interest Entity Activity Between Vie And Entity Income Or Loss Before Tax VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax	5768000	USD
CY2021Q2	stwd	Fair Value Of Service Rights Gain Loss FairValueOfServiceRightsGainLoss	1299000	USD
CY2020Q2	stwd	Fair Value Of Service Rights Gain Loss FairValueOfServiceRightsGainLoss	-2569000	USD
	stwd	Fair Value Of Service Rights Gain Loss FairValueOfServiceRightsGainLoss	503000	USD
	stwd	Fair Value Of Service Rights Gain Loss FairValueOfServiceRightsGainLoss	-2962000	USD
CY2021Q2	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	1508000	USD
CY2020Q2	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	827000	USD
	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	1202000	USD
	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	3331000	USD
CY2021Q2	stwd	Loans As Percent Of Consolidated Vie Assets LoansAsPercentOfConsolidatedVieAssets	0.98
CY2021Q2	stwd	Gain Loss On Mortgage Loans Held For Sale GainLossOnMortgageLoansHeldForSale	45867000	USD
CY2020Q2	stwd	Gain Loss On Mortgage Loans Held For Sale GainLossOnMortgageLoansHeldForSale	34450000	USD
	stwd	Gain Loss On Mortgage Loans Held For Sale GainLossOnMortgageLoansHeldForSale	36389000	USD
	stwd	Gain Loss On Mortgage Loans Held For Sale GainLossOnMortgageLoansHeldForSale	18316000	USD
CY2021Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2226000	USD
CY2020Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	28776000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	3960000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	28873000	USD
CY2021Q2	stwd	Gain Loss On Sale Of Investments Net GainLossOnSaleOfInvestmentsNet	8731000	USD
CY2020Q2	stwd	Gain Loss On Sale Of Investments Net GainLossOnSaleOfInvestmentsNet	6472000	USD
	stwd	Gain Loss On Sale Of Investments Net GainLossOnSaleOfInvestmentsNet	26424000	USD
	stwd	Gain Loss On Sale Of Investments Net GainLossOnSaleOfInvestmentsNet	6768000	USD
CY2021Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-10009000	USD
CY2020Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-16098000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	23980000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-6388000	USD
CY2021Q2	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2627000	USD
CY2020Q2	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	7173000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-9054000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-27313000	USD
CY2021Q2	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1182000	USD
CY2020Q2	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2207000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1698000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2377000	USD
CY2021Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-5473000	USD
CY2020Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	204000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-5452000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	330000	USD
CY2021Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	58103000	USD
CY2020Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	108289000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	128508000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	24346000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	123031000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	151663000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	247787000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	78665000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3353000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1298000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1123000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-8027000	USD
CY2021Q2	us-gaap	Profit Loss ProfitLoss	126384000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	152961000	USD
	us-gaap	Profit Loss ProfitLoss	248910000	USD
	us-gaap	Profit Loss ProfitLoss	86692000	USD
CY2021Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	10074000	USD
CY2020Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	13305000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	21222000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	13805000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	116310000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	139656000	USD
	us-gaap	Net Income Loss NetIncomeLoss	227688000	USD
	us-gaap	Net Income Loss NetIncomeLoss	72887000	USD
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.49
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.49
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.25
CY2021Q2	us-gaap	Profit Loss ProfitLoss	126384000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	152961000	USD
	us-gaap	Profit Loss ProfitLoss	248910000	USD
	us-gaap	Profit Loss ProfitLoss	86692000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-344000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	6982000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-2747000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-8066000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	64000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	0	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-344000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	6982000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2683000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-8066000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	126040000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	159943000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	246227000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	78626000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	10074000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	13305000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	21222000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	13805000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	115966000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	146638000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	225005000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	64821000	USD
CY2021Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4854785000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	226000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	9597000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	6562000	USD
CY2021Q2	us-gaap	Profit Loss ProfitLoss	126384000	USD
CY2021Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.48
CY2021Q2	us-gaap	Dividends Common Stock DividendsCommonStock	138935000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-344000	USD
CY2021Q2	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	2569000	USD
CY2021Q2	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	9144000	USD
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4851700000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4817351000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	216000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	1000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	7344000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	26966000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	152961000	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.48
CY2020Q2	us-gaap	Dividends Common Stock DividendsCommonStock	136984000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	6982000	USD
CY2020Q2	stwd	Noncontrolling Interests Increase Decrease From Variable Interest Entity NoncontrollingInterestsIncreaseDecreaseFromVariableInterestEntity	-1000	USD
CY2020Q2	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	10038000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4864796000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4862576000	USD
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	488000	USD
	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	22000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	19907000	USD
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	14048000	USD
	us-gaap	Profit Loss ProfitLoss	248910000	USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.96
	us-gaap	Dividends Common Stock DividendsCommonStock	277549000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2683000	USD
	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	5538000	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	17977000	USD
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4851700000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5137014000	USD
	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	369000	USD
	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	15000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	28830000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	16144000	USD
	us-gaap	Stock Issued During Period Value Issued For Services StockIssuedDuringPeriodValueIssuedForServices	36046000	USD
	us-gaap	Profit Loss ProfitLoss	86692000	USD
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.96
	us-gaap	Dividends Common Stock DividendsCommonStock	272975000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-8066000	USD
	stwd	Noncontrolling Interests Increase Decrease From Variable Interest Entity NoncontrollingInterestsIncreaseDecreaseFromVariableInterestEntity	-2189000	USD
	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	9406000	USD
	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	76514000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4864796000	USD
	us-gaap	Profit Loss ProfitLoss	248910000	USD
	us-gaap	Profit Loss ProfitLoss	86692000	USD
	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	21265000	USD
	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	19552000	USD
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	3451000	USD
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	3938000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	6773000	USD
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	6123000	USD
	stwd	Accretion Of Net Deferred Loan Fees And Discounts AccretionOfNetDeferredLoanFeesAndDiscounts	29739000	USD
	stwd	Accretion Of Net Deferred Loan Fees And Discounts AccretionOfNetDeferredLoanFeesAndDiscounts	20840000	USD
	stwd	Share Based Compensation And Nonemployee Services Transaction Expense ShareBasedCompensationAndNonemployeeServicesTransactionExpense	19907000	USD
	stwd	Share Based Compensation And Nonemployee Services Transaction Expense ShareBasedCompensationAndNonemployeeServicesTransactionExpense	16144000	USD
	stwd	Incentive Fee Compensation IncentiveFeeCompensation	14048000	USD
	stwd	Incentive Fee Compensation IncentiveFeeCompensation	36046000	USD
	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	1202000	USD
	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	3331000	USD
	stwd	Change In Fair Value Of Consolidated Variable Interest Entity ChangeInFairValueOfConsolidatedVariableInterestEntity	-19024000	USD
	stwd	Change In Fair Value Of Consolidated Variable Interest Entity ChangeInFairValueOfConsolidatedVariableInterestEntity	-62175000	USD
	stwd	Change In Fair Value Of Servicing Rights ChangeInFairValueOfServicingRights	503000	USD
	stwd	Change In Fair Value Of Servicing Rights ChangeInFairValueOfServicingRights	-2962000	USD
	stwd	Gain Loss On Mortgage Loans Held For Sale GainLossOnMortgageLoansHeldForSale	36389000	USD
	stwd	Gain Loss On Mortgage Loans Held For Sale GainLossOnMortgageLoansHeldForSale	18316000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	26289000	USD
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-10531000	USD
	stwd	Foreign Currency Transaction Gain Loss Before Tax Cash Flow Impact ForeignCurrencyTransactionGainLossBeforeTaxCashFlowImpact	-9054000	USD
	stwd	Foreign Currency Transaction Gain Loss Before Tax Cash Flow Impact ForeignCurrencyTransactionGainLossBeforeTaxCashFlowImpact	-27313000	USD
	stwd	Gain On Sale Of Investments Cash Flow GainOnSaleOfInvestmentsCashFlow	26424000	USD
	stwd	Gain On Sale Of Investments Cash Flow GainOnSaleOfInvestmentsCashFlow	6768000	USD
	stwd	Provision For Loan Losses Net ProvisionForLoanLossesNet	-11800000	USD
	stwd	Provision For Loan Losses Net ProvisionForLoanLossesNet	58871000	USD
	stwd	Depreciation And Amortization Excluding Amortization Of Above Below Market Leases DepreciationAndAmortizationExcludingAmortizationOfAboveBelowMarketLeases	45134000	USD
	stwd	Depreciation And Amortization Excluding Amortization Of Above Below Market Leases DepreciationAndAmortizationExcludingAmortizationOfAboveBelowMarketLeases	47137000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	3960000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	28873000	USD
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1082000	USD
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	888000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1698000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2377000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	1284620000	USD
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	740649000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	1477579000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	1340833000	USD
	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	-12739000	USD
	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	-19984000	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	81392000	USD
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	80702000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	32132000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	16372000	USD
	us-gaap	Increase Decrease In Accounts Payable And Other Operating Liabilities IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities	-19203000	USD
	us-gaap	Increase Decrease In Accounts Payable And Other Operating Liabilities IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities	-3763000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	287987000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	769738000	USD
	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	4002046000	USD
	us-gaap	Payments To Acquire Loans Held For Investment PaymentsToAcquireLoansHeldForInvestment	1666903000	USD
	us-gaap	Proceeds From Loan And Lease Originations And Principal Collections1 ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1	2244935000	USD
	us-gaap	Proceeds From Loan And Lease Originations And Principal Collections1 ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1	999254000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	231993000	USD
	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	435097000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	0	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	16120000	USD
	stwd	Proceeds From Sales Of Investment Securities ProceedsFromSalesOfInvestmentSecurities	0	USD
	stwd	Proceeds From Sales Of Investment Securities ProceedsFromSalesOfInvestmentSecurities	7940000	USD
	stwd	Proceeds From Principal Collections On Investment Securities ProceedsFromPrincipalCollectionsOnInvestmentSecurities	68867000	USD
	stwd	Proceeds From Principal Collections On Investment Securities ProceedsFromPrincipalCollectionsOnInvestmentSecurities	50479000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	60969000	USD
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	23805000	USD
	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	12023000	USD
	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	13914000	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	0	USD
	us-gaap	Payments To Acquire Interest In Subsidiaries And Affiliates PaymentsToAcquireInterestInSubsidiariesAndAffiliates	3130000	USD
	stwd	Proceeds From Sale Of Interest In Unconsolidated Entities ProceedsFromSaleOfInterestInUnconsolidatedEntities	0	USD
	stwd	Proceeds From Sale Of Interest In Unconsolidated Entities ProceedsFromSaleOfInterestInUnconsolidatedEntities	10313000	USD
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	21263000	USD
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	206000	USD
	stwd	Payments For Purchase Or Termination Of Derivatives PaymentsForPurchaseOrTerminationOfDerivatives	8111000	USD
	stwd	Payments For Purchase Or Termination Of Derivatives PaymentsForPurchaseOrTerminationOfDerivatives	80911000	USD
	us-gaap	Proceeds From Derivative Instrument Investing Activities ProceedsFromDerivativeInstrumentInvestingActivities	28419000	USD
	us-gaap	Proceeds From Derivative Instrument Investing Activities ProceedsFromDerivativeInstrumentInvestingActivities	13128000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1365734000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-240756000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	6793363000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3686932000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	5538664000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	3716558000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	27172000	USD
	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	7564000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	488000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	369000	USD
	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	22000	USD
	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	15000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	276051000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	271624000	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	5538000	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	9406000	USD
	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	17977000	USD
	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	76514000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	28830000	USD
	stwd	Proceeds From Issuance Of Debt Of Consolidated Variable Interest Entities ProceedsFromIssuanceOfDebtOfConsolidatedVariableInterestEntities	42288000	USD
	stwd	Proceeds From Issuance Of Debt Of Consolidated Variable Interest Entities ProceedsFromIssuanceOfDebtOfConsolidatedVariableInterestEntities	24376000	USD
	stwd	Repayments Of Debt Of Consolidated Variable Interest Entities RepaymentsOfDebtOfConsolidatedVariableInterestEntities	306496000	USD
	stwd	Repayments Of Debt Of Consolidated Variable Interest Entities RepaymentsOfDebtOfConsolidatedVariableInterestEntities	236336000	USD
	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	42546000	USD
	us-gaap	Proceeds From Contributions From Affiliates ProceedsFromContributionsFromAffiliates	36989000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	717841000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-579369000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-359906000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-50387000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	722162000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	574031000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1680000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	487000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	360576000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	524131000	USD
	us-gaap	Interest Paid Net InterestPaidNet	183016000	USD
	us-gaap	Interest Paid Net InterestPaidNet	202648000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	6871000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	657000	USD
	stwd	Dividendspayablecurrentandnoncurrentdividendsdeclaredduringperiod Dividendspayablecurrentandnoncurrentdividendsdeclaredduringperiod	139985000	USD
	stwd	Dividendspayablecurrentandnoncurrentdividendsdeclaredduringperiod Dividendspayablecurrentandnoncurrentdividendsdeclaredduringperiod	137242000	USD
	stwd	Variable Interest Entity Consolidation In Non Cash Investing And Financing Activities VariableInterestEntityConsolidationInNonCashInvestingAndFinancingActivities	2778279000	USD
	stwd	Variable Interest Entity Consolidation In Non Cash Investing And Financing Activities VariableInterestEntityConsolidationInNonCashInvestingAndFinancingActivities	3077357000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	190799000	USD
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	422691000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	124933000	USD
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	0	USD
	stwd	Transfer Of Loans From Variable Interest Entity Assets To Loans Held For Sale Upon Redemption Of Securities TransferOfLoansFromVariableInterestEntityAssetsToLoansHeldForSaleUponRedemptionOfSecurities	172474000	USD
	stwd	Transfer Of Loans From Variable Interest Entity Assets To Loans Held For Sale Upon Redemption Of Securities TransferOfLoansFromVariableInterestEntityAssetsToLoansHeldForSaleUponRedemptionOfSecurities	0	USD
	stwd	Net Assets Acquired Through Foreclosure NetAssetsAcquiredThroughForeclosure	56064000	USD
	stwd	Net Assets Acquired Through Foreclosure NetAssetsAcquiredThroughForeclosure	12274000	USD
	stwd	Loan Principal Collections Temporarily Held At Master Servicer LoanPrincipalCollectionsTemporarilyHeldAtMasterServicer	36308000	USD
	stwd	Loan Principal Collections Temporarily Held At Master Servicer LoanPrincipalCollectionsTemporarilyHeldAtMasterServicer	0	USD
	stwd	Redemption Of Units For Common Stock Value RedemptionOfUnitsForCommonStockValue	8116000	USD
	stwd	Redemption Of Units For Common Stock Value RedemptionOfUnitsForCommonStockValue	8538000	USD
	us-gaap	Nature Of Operations NatureOfOperations	Business and Organization<div style="margin-top:12pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Starwood Property Trust, Inc. (“STWD” and, together with its subsidiaries, “we” or the “Company”) is a Maryland corporation that commenced operations in August 2009, upon the completion of our initial public offering. We are focused primarily on originating, acquiring, financing and managing mortgage loans and other real estate investments in both the United States (“U.S.”) and Europe. As market conditions change over time, we may adjust our strategy to take advantage of changes in interest rates and credit spreads as well as economic and credit conditions.</span></div><div style="margin-top:12pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have four reportable business segments as of June 30, 2021 and we refer to the investments within these segments as our target assets:</span></div><div style="margin-top:12pt;padding-left:54pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Real estate commercial and residential lending (the “Commercial and Residential Lending Segment”)—engages primarily in originating, acquiring, financing and managing commercial first mortgages, non-agency residential mortgages (“residential loans”), subordinated mortgages, mezzanine loans, preferred equity, commercial mortgage-backed securities (“CMBS”), residential mortgage-backed securities (“RMBS”) and other real estate and real estate-related debt investments in both the U.S. and Europe (including distressed or non-performing loans). Our residential loans are secured by a first mortgage lien on residential property and consist of non-agency residential loans that are not guaranteed by any U.S. Government agency or federally chartered corporation.</span></div><div style="margin-top:12pt;padding-left:54pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Infrastructure lending (the “Infrastructure Lending Segment”)—engages primarily in originating, acquiring, financing and managing infrastructure debt investments.</span></div><div style="margin-top:12pt;padding-left:54pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Real estate property (the “Property Segment”)—engages primarily in acquiring and managing equity interests in stabilized commercial real estate properties, including multifamily properties and commercial properties subject to net leases, that are held for investment.</span></div><div style="margin-top:12pt;padding-left:54pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Real estate investing and servicing (the “Investing and Servicing Segment”)—includes (i) a servicing business in the U.S. that manages and works out problem assets, (ii) an investment business that selectively acquires and manages unrated, investment grade and non-investment grade rated CMBS, including subordinated interests of securitization and resecuritization transactions, (iii) a mortgage loan business which originates conduit loans for the primary purpose of selling these loans into securitization transactions and (iv) an investment business that selectively acquires commercial real estate assets, including properties acquired from CMBS trusts.</span></div><div style="margin-top:12pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our segments exclude the consolidation of securitization variable interest entities (“VIEs”).</span></div><div style="margin-top:12pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We are organized and conduct our operations to qualify as a real estate investment trust (“REIT”) under the Internal Revenue Code of 1986, as amended (the “Code”). As such, we will generally not be subject to U.S. federal corporate income tax on that portion of our net income that is distributed to stockholders if we distribute at least 90% of our taxable income to our stockholders by prescribed dates and comply with various other requirements.</span></div><div style="margin-top:12pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We are organized as a holding company and conduct our business primarily through our various wholly-owned subsidiaries. We are externally managed and advised by SPT Management, LLC (our “Manager”) pursuant to the terms of a management agreement. Our Manager is controlled by Barry Sternlicht, our Chairman and Chief Executive Officer. Our Manager is an affiliate of Starwood Capital Group, a privately-held private equity firm founded by Mr. Sternlicht.</span></div>
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	segment
	stwd	Percentage Of Annual Reit Taxable Income Distributable To Stockholders Minimum PercentageOfAnnualREITTaxableIncomeDistributableToStockholdersMinimum	0.90
CY2021Q2	stwd	Permitted Reinvestment Under Static Investment In Variable Interest Entity PermittedReinvestmentUnderStaticInvestmentInVariableInterestEntity	0	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><span style="font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"/></div><div style="margin-top:12pt;text-indent:36pt"><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 in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting periods. The most significant and subjective estimate that we make is the projection of cash flows we expect to receive on our investments, which has a significant impact on the amount of income that we record and/or disclose. In addition, the fair value of financial assets and liabilities that are estimated using a discounted cash flows method is significantly impacted by the rates at which we estimate market participants would discount the expected cash flows.</span></div><div style="margin-top:12pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We believe the estimates and assumptions underlying our consolidated financial statements are reasonable and supportable based on the information available as of June 30, 2021. However, uncertainty over the ultimate impact COVID-19 will have on the global economy generally, and our business in particular, makes any estimates and assumptions as of June 30, 2021 inherently less certain than they would be absent the current and potential impacts of COVID-19. Actual results may ultimately differ from those estimates.</span><span style="font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"/></div>
	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	24100000	USD
CY2020Q2	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	24100000	USD
CY2019Q1	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	20900000	USD
CY2021Q2	stwd	Mortgage Loans On Real Estate Gross Carrying Amount Of Mortgages MortgageLoansOnRealEstateGrossCarryingAmountOfMortgages	13784874000	USD
CY2021Q2	stwd	Mortgage Loans On Real Estate Principal Amount Of Mortgages MortgageLoansOnRealEstatePrincipalAmountOfMortgages	13832918000	USD
CY2021Q2	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	13725049000	USD
CY2020Q4	stwd	Mortgage Loans On Real Estate Gross Carrying Amount Of Mortgages MortgageLoansOnRealEstateGrossCarryingAmountOfMortgages	12217352000	USD
CY2020Q4	stwd	Mortgage Loans On Real Estate Principal Amount Of Mortgages MortgageLoansOnRealEstatePrincipalAmountOfMortgages	12262840000	USD
CY2020Q4	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	12139908000	USD
CY2021Q2	us-gaap	Loans Receivable With Variable Rates Of Interest1 LoansReceivableWithVariableRatesOfInterest1	12242355000	USD
CY2021Q2	us-gaap	Loans Receivable Basis Spread On Variable Rate LoansReceivableBasisSpreadOnVariableRate	0.042
CY2021Q2	stwd	Mortgage Loans On Real Estate Gross Carrying Amount Of Mortgages MortgageLoansOnRealEstateGrossCarryingAmountOfMortgages	13784874000	USD
CY2021Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	59825000	USD
CY2020Q4	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	12139908000	USD
	us-gaap	Mortgage Loans On Real Estate New Mortgage Loans MortgageLoansOnRealEstateNewMortgageLoans	5369620000	USD
	stwd	Mortgage Loans On Real Estate Capitalized Interest MortgageLoansOnRealEstateCapitalizedInterest	63538000	USD
	us-gaap	Mortgage Loans On Real Estate Cost Of Mortgages Sold MortgageLoansOnRealEstateCostOfMortgagesSold	1710563000	USD
	srt	Mortgage Loans On Real Estate Collections Of Principal MortgageLoansOnRealEstateCollectionsOfPrincipal	2351252000	USD
	stwd	Mortgage Loans On Real Estate Discount Accretion And Premium Amortization MortgageLoansOnRealEstateDiscountAccretionAndPremiumAmortization	29739000	USD
	stwd	Gain Loss On Mortgage Loans Held For Sale GainLossOnMortgageLoansHeldForSale	36389000	USD
	stwd	Mortgage Loans On Real Estate Unrealized Foreign Currency Remeasurement Gain Loss MortgageLoansOnRealEstateUnrealizedForeignCurrencyRemeasurementGainLoss	-1642000	USD
	us-gaap	Allowance For Loan And Lease Losses Period Increase Decrease AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease	-9862000	USD
	stwd	Mortgage Loans On Real Estate Loans Converted To Equity Interest During Period MortgageLoansOnRealEstateLoansConvertedToEquityInterestDuringPeriod	36308000	USD
	stwd	Mortgage Loans On Real Estate Transfers MortgageLoansOnRealEstateTransfers	172474000	USD
CY2021Q2	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	13725049000	USD
CY2019Q4	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	11470224000	USD
	us-gaap	Mortgage Loans On Real Estate New Mortgage Loans MortgageLoansOnRealEstateNewMortgageLoans	2453763000	USD
	stwd	Mortgage Loans On Real Estate Capitalized Interest MortgageLoansOnRealEstateCapitalizedInterest	70346000	USD
	us-gaap	Mortgage Loans On Real Estate Cost Of Mortgages Sold MortgageLoansOnRealEstateCostOfMortgagesSold	1776594000	USD
	srt	Mortgage Loans On Real Estate Collections Of Principal MortgageLoansOnRealEstateCollectionsOfPrincipal	1008303000	USD
	stwd	Mortgage Loans On Real Estate Discount Accretion And Premium Amortization MortgageLoansOnRealEstateDiscountAccretionAndPremiumAmortization	20840000	USD
	stwd	Gain Loss On Mortgage Loans Held For Sale GainLossOnMortgageLoansHeldForSale	18316000	USD
	stwd	Mortgage Loans On Real Estate Unrealized Foreign Currency Remeasurement Gain Loss MortgageLoansOnRealEstateUnrealizedForeignCurrencyRemeasurementGainLoss	78174000	USD
	us-gaap	Allowance For Loan And Lease Losses Period Increase Decrease AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease	57417000	USD
	stwd	Mortgage Loans On Real Estate Transfers MortgageLoansOnRealEstateTransfers	0	USD
CY2020Q2	us-gaap	Mortgage Loans On Real Estate MortgageLoansOnRealEstate	11092561000	USD
CY2021Q2	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	4929000	USD
CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	5675000	USD
CY2021Q2	stwd	Investments Excluding Unconsolidated Entities InvestmentsExcludingUnconsolidatedEntities	673566000	USD
CY2020Q4	stwd	Investments Excluding Unconsolidated Entities InvestmentsExcludingUnconsolidatedEntities	736658000	USD
CY2021Q2	stwd	Purchase Of Marketable Securities PurchaseOfMarketableSecurities	0	USD
CY2021Q2	stwd	Sale Of Marketable Securities SaleOfMarketableSecurities	0	USD
CY2021Q2	stwd	Proceeds From Principal Collections On Investment Securities ProceedsFromPrincipalCollectionsOnInvestmentSecurities	9353000	USD
CY2021Q2	stwd	Redemption Of Securities RedemptionOfSecurities	0	USD
CY2020Q2	stwd	Purchase Of Marketable Securities PurchaseOfMarketableSecurities	10391000	USD
CY2020Q2	stwd	Sale Of Marketable Securities SaleOfMarketableSecurities	0	USD
CY2020Q2	stwd	Proceeds From Principal Collections On Investment Securities ProceedsFromPrincipalCollectionsOnInvestmentSecurities	36920000	USD
	stwd	Purchase Of Marketable Securities PurchaseOfMarketableSecurities	0	USD
	stwd	Sale Of Marketable Securities SaleOfMarketableSecurities	0	USD
	stwd	Proceeds From Principal Collections On Investment Securities ProceedsFromPrincipalCollectionsOnInvestmentSecurities	68867000	USD
	stwd	Redemption Of Securities RedemptionOfSecurities	0	USD
	stwd	Purchase Of Marketable Securities PurchaseOfMarketableSecurities	16120000	USD
	stwd	Sale Of Marketable Securities SaleOfMarketableSecurities	7940000	USD
	stwd	Proceeds From Principal Collections On Investment Securities ProceedsFromPrincipalCollectionsOnInvestmentSecurities	50479000	USD
CY2021Q2	stwd	Available For Sale Securities Amortized Cost Before Other Than Temporary Impairment AvailableForSaleSecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	113394000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	113394000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	41312000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	2000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Accumulated Gross Unrealized Gain Loss Before Tax DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax	41310000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	154704000	USD
CY2020Q4	stwd	Available For Sale Securities Amortized Cost Before Other Than Temporary Impairment AvailableForSaleSecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	123292000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	123292000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	44123000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	66000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Accumulated Gross Unrealized Gain Loss Before Tax DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax	44057000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	167349000	USD
CY2021Q2	stwd	Debt Securities Available For Sale Cost Of Third Party Management DebtSecuritiesAvailableForSaleCostOfThirdPartyManagement	300000	USD
CY2020Q2	stwd	Debt Securities Available For Sale Cost Of Third Party Management DebtSecuritiesAvailableForSaleCostOfThirdPartyManagement	300000	USD
	stwd	Debt Securities Available For Sale Cost Of Third Party Management DebtSecuritiesAvailableForSaleCostOfThirdPartyManagement	600000	USD
	stwd	Debt Securities Available For Sale Cost Of Third Party Management DebtSecuritiesAvailableForSaleCostOfThirdPartyManagement	700000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	0	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	929000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	0	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	2000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	438000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	1195000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	25000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	41000	USD
CY2021Q2	stwd	Number Of Securities With Unrealized Losses NumberOfSecuritiesWithUnrealizedLosses	1	security
CY2020Q4	stwd	Number Of Securities With Unrealized Losses NumberOfSecuritiesWithUnrealizedLosses	2	security
CY2021Q2	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	492946000	USD
CY2021Q2	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	4929000	USD
CY2021Q2	stwd	Debt Securities Held To Maturity Net DebtSecuritiesHeldToMaturityNet	488017000	USD
CY2021Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	4084000	USD
CY2021Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	23543000	USD
CY2021Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	468558000	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	544280000	USD
CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	5675000	USD
CY2020Q4	stwd	Debt Securities Held To Maturity Net DebtSecuritiesHeldToMaturityNet	538605000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	847000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	24199000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	515253000	USD
CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	5675000	USD
	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss Purchased With Credit Deterioration Increase DebtSecuritiesHeldToMaturityAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	-746000	USD
CY2021Q2	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	4929000	USD
CY2021Q2	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	70995000	USD
CY2021Q2	stwd	Held To Maturity Securities Debt Maturities After One Through Three Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughThreeYearsNetCarryingAmount	383141000	USD
CY2021Q2	stwd	Debt Securities Held To Maturity Amortized Cost Maturity Allocated And Single Maturity Date After Year Three Through Year Five DebtSecuritiesHeldToMaturityAmortizedCostMaturityAllocatedAndSingleMaturityDateAfterYearThreeThroughYearFive	0	USD
CY2021Q2	stwd	Held To Maturity Securities Debt Maturities After Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveYearsNetCarryingAmount	33881000	USD
CY2021Q2	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Amortized Cost Basis HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	488017000	USD
CY2021Q2	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	2581646000	USD
CY2020Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	2573296000	USD
CY2021Q2	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	338077000	USD
CY2020Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	302143000	USD
CY2021Q2	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	2243569000	USD
CY2020Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	2271153000	USD
CY2021Q2	us-gaap	Equity Method Investments EquityMethodInvestments	64618000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	62718000	USD
CY2021Q2	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	32171000	USD
CY2020Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	45336000	USD
CY2021Q2	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	96789000	USD
CY2020Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	108054000	USD
CY2021Q2	stwd	Number Of Publicly Traded Investments NumberOfPubliclyTradedInvestments	0	Item
CY2021Q2	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	0	USD
CY2021Q2	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	168985000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	103792000	USD
CY2021Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	65193000	USD
CY2020Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	170586000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	100469000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	70117000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	70117000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4998000	USD
	stwd	Intangible Assets Sold IntangibleAssetsSold	-429000	USD
	stwd	Indefinite Lived Intangible Assets Adjustments For Change In Inputs And Assumptions IndefiniteLivedIntangibleAssetsAdjustmentsForChangeInInputsAndAssumptions	503000	USD
CY2021Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	65193000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	4539000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	7783000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	6043000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	4650000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	3775000	USD
CY2021Q2	stwd	Finite Lived Intangible Assets Amortization Expense Year Five And After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndAfterYearFive	24698000	USD
CY2021Q2	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	51488000	USD
CY2021Q1	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	375000000.0	USD
CY2021Q1	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	1000000000.0	USD
CY2021Q2	stwd	Debt Instrument Convertible Principal Amount For Conversion Ratio DebtInstrumentConvertiblePrincipalAmountForConversionRatio	1000	USD
CY2021Q2	us-gaap	Share Price SharePrice	26.17
CY2021Q2	us-gaap	Share Price SharePrice	26.17
CY2021Q2	us-gaap	Derivative Number Of Instruments Held DerivativeNumberOfInstrumentsHeld	393	contract
CY2021Q2	us-gaap	Derivative Assets DerivativeAssets	35615000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	40555000	USD
CY2021Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	33061000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	41324000	USD
CY2021Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-10009000	USD
CY2020Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-16098000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	23980000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-6388000	USD
CY2021Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	35615000	USD
CY2021Q2	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2021Q2	us-gaap	Derivative Assets DerivativeAssets	35615000	USD
CY2021Q2	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	11346000	USD
CY2021Q2	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	22927000	USD
CY2021Q2	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	1342000	USD
CY2021Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	33061000	USD
CY2021Q2	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2021Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	33061000	USD
CY2021Q2	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	11346000	USD
CY2021Q2	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	20547000	USD
CY2021Q2	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	1168000	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	6310121000	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	0	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	6310121000	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	6310121000	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Cash SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash	0	USD
CY2021Q2	us-gaap	Securities Sold Under Agreements To Repurchase Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral	0	USD
CY2021Q2	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	6343182000	USD
CY2021Q2	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	0	USD
CY2021Q2	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	6343182000	USD
CY2021Q2	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	6321467000	USD
CY2021Q2	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	20547000	USD
CY2021Q2	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	1168000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	40555000	USD
CY2020Q4	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	0	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	40555000	USD
CY2020Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	6716000	USD
CY2020Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	33772000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	67000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	41324000	USD
CY2020Q4	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	0	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	41324000	USD
CY2020Q4	us-gaap	Derivative Collateral Right To Reclaim Securities DerivativeCollateralRightToReclaimSecurities	6716000	USD
CY2020Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	27416000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	7192000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	5808807000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	0	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	5808807000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	5808807000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Cash SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimCash	0	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral	0	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Gross DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	5850131000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Asset DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	0	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoaned	5850131000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	5815523000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimCash	27416000	USD
CY2020Q4	us-gaap	Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral DerivativeLiabilitySecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	7192000	USD
	stwd	Number Of Collateralized Loan Obligations NumberOfCollateralizedLoanObligations	3	collateralizedLoanObligation
CY2021Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.48
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.48
	stwd	Stock Issued During Period Shares Atm Equity Offering Sales Agreement StockIssuedDuringPeriodSharesATMEquityOfferingSalesAgreement	0	shares
	stwd	Stock Issued During Period Shares Atm Equity Offering Sales Agreement StockIssuedDuringPeriodSharesATMEquityOfferingSalesAgreement	0	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	3881501	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	17.26
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	1646994	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	22.04
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	1167138	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	17.87
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	17350	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	21.61
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	4344007	shares
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	18.89
CY2021Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	116310000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	139656000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	227688000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	72887000	USD
CY2021Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1791000	USD
CY2020Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1143000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	3716000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	2365000	USD
CY2021Q2	stwd	Income Loss From Continuing Operations Basic IncomeLossFromContinuingOperationsBasic	114519000	USD
CY2020Q2	stwd	Income Loss From Continuing Operations Basic IncomeLossFromContinuingOperationsBasic	138513000	USD
	stwd	Income Loss From Continuing Operations Basic IncomeLossFromContinuingOperationsBasic	223972000	USD
	stwd	Income Loss From Continuing Operations Basic IncomeLossFromContinuingOperationsBasic	70522000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	116310000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	139656000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	227688000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	72887000	USD
CY2021Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1791000	USD
CY2020Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1143000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	3716000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	2365000	USD
CY2021Q2	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2020Q2	us-gaap	Dilutive Securities DilutiveSecurities	120000	USD
	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
	us-gaap	Dilutive Securities DilutiveSecurities	0	USD
CY2021Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	USD
CY2020Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	-116000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	USD
CY2021Q2	stwd	Income Loss From Continuing Operations Diluted IncomeLossFromContinuingOperationsDiluted	117419000	USD
CY2020Q2	stwd	Income Loss From Continuing Operations Diluted IncomeLossFromContinuingOperationsDiluted	141568000	USD
	stwd	Income Loss From Continuing Operations Diluted IncomeLossFromContinuingOperationsDiluted	229788000	USD
	stwd	Income Loss From Continuing Operations Diluted IncomeLossFromContinuingOperationsDiluted	70522000	USD
CY2021Q2	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	284710000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	281461000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	284018000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	281225000	shares
CY2021Q2	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	95000	shares
CY2020Q2	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	183000	shares
	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	95000	shares
	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	215000	shares
CY2021Q2	stwd	Incremental Common Shares Attributable To Non Participating Nonvested Shares IncrementalCommonSharesAttributableToNonParticipatingNonvestedShares	117000	shares
CY2020Q2	stwd	Incremental Common Shares Attributable To Non Participating Nonvested Shares IncrementalCommonSharesAttributableToNonParticipatingNonvestedShares	0	shares
	stwd	Incremental Common Shares Attributable To Non Participating Nonvested Shares IncrementalCommonSharesAttributableToNonParticipatingNonvestedShares	46000	shares
	stwd	Incremental Common Shares Attributable To Non Participating Nonvested Shares IncrementalCommonSharesAttributableToNonParticipatingNonvestedShares	0	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	294571000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	291293000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	293808000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	281440000	shares
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.49
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.79
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.49
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.25
CY2021Q2	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	25836000	USD
CY2021Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020Q2	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	31849000	USD
CY2020Q2	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	52035000	USD
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	16520000	USD
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021Q2	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	24018000	USD
CY2021Q2	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.195
CY2020Q2	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	26923000	USD
CY2020Q2	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.178
	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	48519000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.196
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	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.216
CY2021Q2	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	597000	USD
CY2021Q2	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0.001
CY2020Q2	stwd	Income Tax Reconciliation Federal Benefit Of State Tax Deduction IncomeTaxReconciliationFederalBenefitOfStateTaxDeduction	-340000	USD
CY2020Q2	stwd	Income Tax Reconciliation Net Operating Loss Carryback Rate Differential IncomeTaxReconciliationNetOperatingLossCarrybackRateDifferential	-3717000	USD
CY2021Q2	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.005
CY2020Q2	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1619000	USD
CY2020Q2	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.011
	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1155000	USD
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.005
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CY2021Q2	stwd	Income Tax Reconciliation Federal Benefit Of State Tax Deduction IncomeTaxReconciliationFederalBenefitOfStateTaxDeduction	-126000	USD
CY2020Q2	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0.002
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	us-gaap	Effective Income Tax Rate Reconciliation Deductions EffectiveIncomeTaxRateReconciliationDeductions	0
CY2021Q2	stwd	Income Tax Reconciliation Net Operating Loss Carryback Rate Differential IncomeTaxReconciliationNetOperatingLossCarrybackRateDifferential	0	USD
CY2021Q2	stwd	Effective Income Tax Rate Net Operating Loss Carryback Rate Differential EffectiveIncomeTaxRateNetOperatingLossCarrybackRateDifferential	0
CY2020Q2	stwd	Effective Income Tax Rate Reconciliation Intra Entity Transfer EffectiveIncomeTaxRateReconciliationIntraEntityTransfer	-0.025
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	stwd	Effective Income Tax Rate Net Operating Loss Carryback Rate Differential EffectiveIncomeTaxRateNetOperatingLossCarrybackRateDifferential	-0.047
CY2020Q2	stwd	Effective Income Tax Rate Net Operating Loss Carryback Rate Differential EffectiveIncomeTaxRateNetOperatingLossCarrybackRateDifferential	-0.025
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	stwd	Effective Income Tax Rate Net Operating Loss Carryback Rate Differential EffectiveIncomeTaxRateNetOperatingLossCarrybackRateDifferential	0
CY2021Q2	stwd	Income Tax Reconciliation Intra Entity Transfer IncomeTaxReconciliationIntraEntityTransfer	6037000	USD
CY2021Q2	stwd	Effective Income Tax Rate Reconciliation Intra Entity Transfer EffectiveIncomeTaxRateReconciliationIntraEntityTransfer	-0.049
CY2020Q2	stwd	Income Tax Reconciliation Intra Entity Transfer IncomeTaxReconciliationIntraEntityTransfer	3781000	USD
	stwd	Income Tax Reconciliation Intra Entity Transfer IncomeTaxReconciliationIntraEntityTransfer	6052000	USD
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	stwd	Effective Income Tax Rate Reconciliation Intra Entity Transfer EffectiveIncomeTaxRateReconciliationIntraEntityTransfer	-0.048
CY2021Q2	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	395000	USD
CY2021Q2	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.003
CY2020Q2	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-5000	USD
CY2020Q2	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0
CY2021Q2	us-gaap	Costs And Expenses CostsAndExpenses	225939000	USD
CY2021Q2	us-gaap	Variable Interest Entity Activity Between Vie And Entity Income Or Loss Before Tax VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax	12509000	USD
	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	501000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001
	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	86000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3353000	USD
CY2021Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.027
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1298000	USD
CY2020Q2	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.009
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1123000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.005
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-8027000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.102
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2021Q2	us-gaap	Interest And Fee Income Loans Commercial InterestAndFeeIncomeLoansCommercial	189272000	USD
CY2021Q2	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	10648000	USD
CY2021Q2	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	10864000	USD
CY2021Q2	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	77119000	USD
CY2021Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	2964000	USD
CY2021Q2	us-gaap	Revenues Revenues	290867000	USD
CY2021Q2	stwd	Management Fees ManagementFees	29250000	USD
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CY2021Q2	stwd	Acquisition And Investment Pursuit Costs AcquisitionAndInvestmentPursuitCosts	407000	USD
CY2021Q2	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	30731000	USD
CY2021Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	22477000	USD
CY2021Q2	stwd	Provision For Loan Losses Net ProvisionForLoanLossesNet	-11844000	USD
CY2021Q2	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	0	USD
CY2021Q2	stwd	Fair Value Of Service Rights Gain Loss FairValueOfServiceRightsGainLoss	1299000	USD
CY2021Q2	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	1508000	USD
CY2021Q2	stwd	Gain Loss On Mortgage Loans Held For Sale GainLossOnMortgageLoansHeldForSale	45867000	USD
CY2021Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2226000	USD
CY2021Q2	stwd	Gain Loss On Sale Of Investments Net GainLossOnSaleOfInvestmentsNet	8731000	USD
CY2021Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-10009000	USD
CY2021Q2	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2627000	USD
CY2021Q2	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1182000	USD
CY2021Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-5473000	USD
CY2021Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	58103000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	123031000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3353000	USD
CY2021Q2	us-gaap	Profit Loss ProfitLoss	126384000	USD
CY2021Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	10074000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	116310000	USD
CY2020Q2	us-gaap	Interest And Fee Income Loans Commercial InterestAndFeeIncomeLoansCommercial	171103000	USD
CY2020Q2	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	14644000	USD
CY2020Q2	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	6658000	USD
CY2020Q2	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	72710000	USD
CY2020Q2	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	491000	USD
CY2020Q2	us-gaap	Revenues Revenues	265606000	USD
CY2020Q2	stwd	Management Fees ManagementFees	23115000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	101493000	USD
CY2020Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	32677000	USD
CY2020Q2	stwd	Acquisition And Investment Pursuit Costs AcquisitionAndInvestmentPursuitCosts	1590000	USD
CY2020Q2	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	29632000	USD
CY2020Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	23421000	USD
CY2020Q2	stwd	Provision For Loan Losses Net ProvisionForLoanLossesNet	10202000	USD
CY2020Q2	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-102000	USD
CY2020Q2	us-gaap	Costs And Expenses CostsAndExpenses	222232000	USD
CY2020Q2	us-gaap	Variable Interest Entity Activity Between Vie And Entity Income Or Loss Before Tax VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax	51261000	USD
CY2020Q2	stwd	Fair Value Of Service Rights Gain Loss FairValueOfServiceRightsGainLoss	-2569000	USD
CY2020Q2	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	827000	USD
CY2020Q2	stwd	Gain Loss On Mortgage Loans Held For Sale GainLossOnMortgageLoansHeldForSale	34450000	USD
CY2020Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	28776000	USD
CY2020Q2	stwd	Gain Loss On Sale Of Investments Net GainLossOnSaleOfInvestmentsNet	6472000	USD
CY2020Q2	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-16098000	USD
CY2020Q2	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	7173000	USD
CY2020Q2	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2207000	USD
CY2020Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	204000	USD
CY2020Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	108289000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	151663000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1298000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	152961000	USD
CY2020Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	13305000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	139656000	USD
	us-gaap	Interest And Fee Income Loans Commercial InterestAndFeeIncomeLoansCommercial	379847000	USD
	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	22258000	USD
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	us-gaap	Revenues Revenues	578097000	USD
	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	59476000	USD
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	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	19266000	USD
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	us-gaap	Variable Interest Entity Activity Between Vie And Entity Income Or Loss Before Tax VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax	52254000	USD
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	us-gaap	Net Income Loss NetIncomeLoss	227688000	USD
	us-gaap	Interest And Fee Income Loans Commercial InterestAndFeeIncomeLoansCommercial	388530000	USD
	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	29884000	USD
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	us-gaap	Depreciation And Amortization DepreciationAndAmortization	47401000	USD
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	us-gaap	Variable Interest Entity Activity Between Vie And Entity Income Or Loss Before Tax VariableInterestEntityActivityBetweenVIEAndEntityIncomeOrLossBeforeTax	5768000	USD
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	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	28873000	USD
	stwd	Gain Loss On Sale Of Investments Net GainLossOnSaleOfInvestmentsNet	6768000	USD
	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-6388000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-27313000	USD
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2377000	USD
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	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	78665000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-8027000	USD
	us-gaap	Profit Loss ProfitLoss	86692000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	13805000	USD
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CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	254567000	USD
CY2021Q2	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	106009000	USD
CY2021Q2	us-gaap	Notes Receivable Net NotesReceivableNet	12763372000	USD
CY2021Q2	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	961677000	USD
CY2021Q2	stwd	Investments Excluding Unconsolidated Entities InvestmentsExcludingUnconsolidatedEntities	673566000	USD
CY2021Q2	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	2243569000	USD
CY2021Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	65193000	USD
CY2021Q2	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	96789000	USD
CY2021Q2	us-gaap	Goodwill Goodwill	259846000	USD
CY2021Q2	us-gaap	Derivative Assets DerivativeAssets	35615000	USD
CY2021Q2	us-gaap	Interest Receivable InterestReceivable	113800000	USD
CY2021Q2	us-gaap	Other Assets OtherAssets	241503000	USD
CY2021Q2	us-gaap	Assets Assets	81309302000	USD
CY2021Q2	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	182226000	USD
CY2021Q2	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	26431000	USD
CY2021Q2	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	139457000	USD
CY2021Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	33061000	USD
CY2021Q2	us-gaap	Secured Debt SecuredDebt	9932662000	USD
CY2021Q2	us-gaap	Collateralized Financings CollateralizedFinancings	2404672000	USD
CY2021Q2	us-gaap	Unsecured Debt UnsecuredDebt	1737383000	USD
CY2021Q2	us-gaap	Liabilities Liabilities	76457602000	USD
CY2021Q2	us-gaap	Common Stock Value CommonStockValue	2952000	USD
CY2021Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	5248490000	USD
CY2021Q2	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	138022000	USD
CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	41310000	USD
CY2021Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-677375000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	4477355000	USD
CY2021Q2	us-gaap	Minority Interest MinorityInterest	374345000	USD
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4851700000	USD
CY2021Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	81309302000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	563217000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	158945000	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	11087073000	USD
CY2020Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	1052835000	USD
CY2020Q4	stwd	Investments Excluding Unconsolidated Entities InvestmentsExcludingUnconsolidatedEntities	736658000	USD
CY2020Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	2271153000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	70117000	USD
CY2020Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	108054000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	259846000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	40555000	USD
CY2020Q4	us-gaap	Interest Receivable InterestReceivable	95980000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	190748000	USD
CY2020Q4	us-gaap	Assets Assets	80873509000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	206845000	USD
CY2020Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	39170000	USD
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	137959000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	41324000	USD
CY2020Q4	us-gaap	Secured Debt SecuredDebt	10146190000	USD
CY2020Q4	us-gaap	Collateralized Financings CollateralizedFinancings	930554000	USD
CY2020Q4	us-gaap	Unsecured Debt UnsecuredDebt	1732520000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	76010933000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	2921000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	5209739000	USD
CY2020Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	138022000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	43993000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-629733000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	4488898000	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	373678000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4862576000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	80873509000	USD

Files In Submission

Name	View Source	Status
0001628280-21-015669-index-headers.html	Edgar Link	pending
0001628280-21-015669-index.html	Edgar Link	pending
0001628280-21-015669.txt	Edgar Link	pending
0001628280-21-015669-xbrl.zip	Edgar Link	pending
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stwd-20210630_cal.xml	Edgar Link	unprocessable
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stwd-20210630_htm.xml	Edgar Link	completed
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stwd-20210630_pre.xml	Edgar Link	unprocessable

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$STWD
STARWOOD PROPERTY TRUST, INC. Stock $stwd

2021 Q3 Form 10-Q Financial Statement

#000162828021015669 Filed on August 05, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$STWD STARWOOD PROPERTY TRUST, INC. Stock $stwd

2021 Q3 Form 10-Q Financial Statement

#000162828021015669 Filed on August 05, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$STWD
STARWOOD PROPERTY TRUST, INC. Stock $stwd