| Line | Label | Object Class (Data type) | Period Type | Balance | Report Element Name | 
        
           | 1 | Research and Development Assets Acquired Other than Through Business Combination, by Transaction [Table] | Table |  |  | us-gaap:ScheduleOfResearchAndDevelopmentAssetsAcquiredOtherThanThroughBusinessCombinationTable | 
        
           | 2 | Legal Entity [Axis] | Axis |  |  | dei:LegalEntityAxis | 
        
           | 3 | Consolidated Entity [Domain] | Member |  |  | dei:EntityDomain | 
        
           | 4 | Transaction [Axis] | Axis |  |  | us-gaap:ResearchAndDevelopmentAssetsAcquiredOtherThanThroughBusinessCombinationByTransactionAxis | 
        
           | 5 | All Transactions [Domain] | Member |  |  | us-gaap:ResearchAndDevelopmentAssetTransactionDomain | 
        
           | 6 | Income Statement Location [Axis] | Axis |  |  | us-gaap:IncomeStatementLocationAxis | 
        
           | 7 | Income Statement Location [Domain] | Member |  |  | us-gaap:IncomeStatementLocationDomain | 
        
           | 8 | Sales [Member] | Member |  |  | us-gaap:SalesMember | 
        
           | 9 | Trading Revenue [Member] | Member |  |  | us-gaap:TradingRevenueMember | 
        
           | 10 | Cost of Sales [Member] | Member |  |  | us-gaap:CostOfSalesMember | 
        
           | 11 | Principal or Proprietary Transactions [Member] | Member |  |  | us-gaap:PrincipalOrProprietaryTransactionsMember | 
        
           | 12 | Asset Management Income [Member] | Member |  |  | us-gaap:AssetManagementIncomeMember | 
        
           | 13 | Other Income [Member] | Member |  |  | us-gaap:OtherIncomeMember | 
        
           | 14 | Interest Income [Member] | Member |  |  | us-gaap:InterestIncomeMember | 
        
           | 15 | Investment Income [Member] | Member |  |  | us-gaap:InvestmentIncomeMember | 
        
           | 16 | Operating Income (Loss) [Member] | Member |  |  | us-gaap:OperatingIncomeLossMember | 
        
           | 17 | Other Operating Income (Expense) [Member] | Member |  |  | us-gaap:OtherOperatingIncomeExpenseMember | 
        
           | 18 | Interest Expense [Member] | Member |  |  | us-gaap:InterestExpenseMember | 
        
           | 19 | Operating Expense [Member] | Member |  |  | us-gaap:OperatingExpenseMember | 
        
           | 20 | Other Expense [Member] | Member |  |  | us-gaap:OtherExpenseMember | 
        
           | 21 | Gain (Loss) on Derivative Instruments [Member] | Member |  |  | us-gaap:GainLossOnDerivativeInstrumentsMember | 
        
           | 22 | Gain (Loss) on Investments [Member] | Member |  |  | us-gaap:GainLossOnInvestmentsMember1 | 
        
           | 23 | Investment Income (Expense) [Member] | Member |  |  | us-gaap:InvestmentIncomeExpenseMember | 
        
           | 24 | Nonoperating Income (Expense) [Member] | Member |  |  | us-gaap:NonoperatingIncomeExpenseMember | 
        
           | 25 | Other Nonoperating Income (Expense) [Member] | Member |  |  | us-gaap:OtherNonoperatingIncomeExpenseMember | 
        
           | 26 | Foreign Currency Gain (Loss) [Member] | Member |  |  | us-gaap:ForeignCurrencyGainLossMember | 
        
           | 27 | Sale of Subsidiary Gain (Loss) [Member] | Member |  |  | us-gaap:SaleOfSubsidiaryGainLossMember | 
        
           | 28 | Selling, General and Administrative Expenses [Member] | Member |  |  | us-gaap:SellingGeneralAndAdministrativeExpensesMember | 
        
           | 29 | Selling and Marketing Expense [Member] | Member |  |  | us-gaap:SellingAndMarketingExpenseMember | 
        
           | 30 | General and Administrative Expense [Member] | Member |  |  | us-gaap:GeneralAndAdministrativeExpenseMember | 
        
           | 31 | Research and Development Assets Acquired Other than Through Business Combination [Line Items] | LineItems |  |  | us-gaap:ResearchAndDevelopmentAssetsAcquiredOtherThanThroughBusinessCombinationLineItems | 
        
           | 32 | Research and Development Assets Acquired Other than Through Business Combination [Hierarchy] | Abstract |  |  | added:ResearchDevelopmentAssetsAcquiredOtherThanThroughBusinessCombinationHierarchy | 
        
           | 33 | Research and Development Asset Acquired Other than Through Business Combination, Description | Concept  (Text/String) | For Period |  | us-gaap:ResearchAndDevelopmentAssetAcquiredOtherThanThroughBusinessCombinationDescription | 
        
           | 34 | Research and Development Asset Acquired Other than Through Business Combination, Fair Value Acquired | Concept  (Monetary) | For Period | Debit | us-gaap:ResearchAndDevelopmentAssetAcquiredOtherThanThroughBusinessCombinationFairValueAcquired | 
        
           | 35 | Research and Development Asset Acquired Other than Through Business Combination, Written-off | Concept  (Monetary) | For Period | Debit | us-gaap:ResearchAndDevelopmentAssetAcquiredOtherThanThroughBusinessCombinationWrittenOff | 
        
           | 36 | Research and Development Asset Acquired Other than Through Business Combination, Written-off, Income Statement Caption | Concept  (Text/String) | For Period |  | us-gaap:ResearchAndDevelopmentAssetAcquiredOtherThanThroughBusinessCombinationWrittenOffIncomeStatementCaption |