| Line | Label | Object Class | Period Type | Balance | Report ElementName |
|---|---|---|---|---|---|
| 1 | 778000 - Disclosure - Extraordinary and Unusual Items | [Network] | http://fasb.org/us-gaap/role/disclosure/ExtraordinaryAndUnusualItems | ||
| 2 | Unusual or Infrequent Items, or Both [Abstract] | Abstract | us-gaap:ExtraordinaryAndUnusualItemsAbstract | ||
| 3 | Unusual or Infrequent Items, or Both, Disclosure [Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:UnusualOrInfrequentItemsDisclosureTextBlock | |
| 4 | Schedule of Unusual or Infrequent Items, or Both [Table Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:ScheduleOfUnusualOrInfrequentItemsTextBlock | |
| 5 | Unusual or Infrequent Item, or Both [Table] | Table | us-gaap:UnusualOrInfrequentItemTable | ||
| 6 | Unusual or Infrequent Item, or Both [Axis] | Axis | us-gaap:UnusualOrInfrequentItemAxis | ||
| 7 | Unusual or Infrequent Item, or Both [Domain] | Member | us-gaap:UnusualOrInfrequentItemDomain | ||
| 8 | Natural Disasters and Other Casualty Events [Member] | Member | us-gaap:NaturalDisastersAndOtherCasualtyEventsMember | ||
| 9 | Unusual or Infrequent Item, or Both [Line Items] | LineItems | us-gaap:UnusualOrInfrequentItemLineItems | ||
| 10 | Unusual or Infrequent Item, or Both, Nature of Event or Transaction | Concept (Text/String) | For Period | us-gaap:UnusualOrInfrequentItemNatureOfEventOrTransaction | |
| 11 | Unusual or Infrequent Item, or Both, Net (Gain) Loss [Abstract] | Abstract | us-gaap:UnusualOrInfrequentItemNetGainLossAbstract | ||
| 12 | Unusual or Infrequent Item, or Both, Net of Insurance Proceeds [Abstract] | Abstract | us-gaap:UnusualOrInfrequentItemNetOfInsuranceProceedsAbstract | ||
| 13 | Unusual or Infrequent Item, or Both, Loss, Gross | Concept (Monetary) | For Period | Debit | us-gaap:UnusualOrInfrequentItemLossGross |
| 14 | Unusual or Infrequent Item, or Both, Insurance Proceeds | Concept (Monetary) | For Period | Credit | us-gaap:UnusualOrInfrequentItemInsuranceProceeds |
| 15 | Unusual or Infrequent Item, or Both, Net of Insurance Proceeds, Total | Concept (Monetary) | For Period | Debit | us-gaap:UnusualOrInfrequentItemNetOfInsuranceProceeds |
| 16 | Unusual or Infrequent Item, or Both, Gain, Gross | Concept (Monetary) | For Period | Credit | us-gaap:UnusualOrInfrequentItemGainGross |
| 17 | Discontinued Application of Specialized Accounting for Regulated Operations | Concept (Monetary) | For Period | Credit | us-gaap:DiscontinuedApplicationOfSpecializedAccountingForRegulatedOperations |
| 18 | Unusual or Infrequent Item, or Both, Net (Gain) Loss, Total | Concept (Monetary) | For Period | Debit | us-gaap:UnusualOrInfrequentItemNetGainLoss |
| 19 | Unusual or Infrequent Item, or Both, Earnings Per Share Impact, Gross | Concept (Share) | For Period | us-gaap:UnusualOrInfrequentItemEarningsPerShareImpactGross | |
| 20 | Unusual or Infrequent Item, or Both, Earnings Per Share Impact, Net | Concept (Share) | For Period | us-gaap:UnusualOrInfrequentItemEarningsPerShareImpactNet | |
| 21 | Unusual or Infrequent Item, or Both, Tax Effect | Concept (Monetary) | For Period | Debit | us-gaap:UnusualOrInfrequentTaxEffect |
| 22 | Business Insurance Recoveries [Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:BusinessInsuranceRecoveriesTextBlock | |
| 23 | Business Insurance Recoveries [Table Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:ScheduleOfBusinessInsuranceRecoveriesTextBlock | |
| 24 | Business Insurance Recoveries [Table] | Table | us-gaap:ScheduleOfBusinessInsuranceRecoveriesTable | ||
| 25 | Business Interruption Loss [Axis] | Axis | us-gaap:BusinessInterruptionLossAxis | ||
| 26 | Business Interruption Loss [Domain] | Member | us-gaap:BusinessInterruptionLossDomain | ||
| 27 | Income Statement Location [Axis] | Axis | us-gaap:IncomeStatementLocationAxis | ||
| 28 | Income Statement Location [Domain] | Member | us-gaap:IncomeStatementLocationDomain | ||
| 29 | Sales [Member] | Member | us-gaap:SalesMember | ||
| 30 | Trading Revenue [Member] | Member | us-gaap:TradingRevenueMember | ||
| 31 | Cost of Sales [Member] | Member | us-gaap:CostOfSalesMember | ||
| 32 | Principal or Proprietary Transactions [Member] | Member | us-gaap:PrincipalOrProprietaryTransactionsMember | ||
| 33 | Asset Management Income [Member] | Member | us-gaap:AssetManagementIncomeMember | ||
| 34 | Other Income [Member] | Member | us-gaap:OtherIncomeMember | ||
| 35 | Interest Income [Member] | Member | us-gaap:InterestIncomeMember | ||
| 36 | Investment Income [Member] | Member | us-gaap:InvestmentIncomeMember | ||
| 37 | Operating Income (Loss) [Member] | Member | us-gaap:OperatingIncomeLossMember | ||
| 38 | Other Operating Income (Expense) [Member] | Member | us-gaap:OtherOperatingIncomeExpenseMember | ||
| 39 | Interest Expense [Member] | Member | us-gaap:InterestExpenseMember | ||
| 40 | Operating Expense [Member] | Member | us-gaap:OperatingExpenseMember | ||
| 41 | Other Expense [Member] | Member | us-gaap:OtherExpenseMember | ||
| 42 | Nonoperating Income (Expense) [Member] | Member | us-gaap:NonoperatingIncomeExpenseMember | ||
| 43 | Other Nonoperating Income (Expense) [Member] | Member | us-gaap:OtherNonoperatingIncomeExpenseMember | ||
| 44 | Foreign Currency Gain (Loss) [Member] | Member | us-gaap:ForeignCurrencyGainLossMember | ||
| 45 | Sale of Subsidiary Gain (Loss) [Member] | Member | us-gaap:SaleOfSubsidiaryGainLossMember | ||
| 46 | Selling, General and Administrative Expenses [Member] | Member | us-gaap:SellingGeneralAndAdministrativeExpensesMember | ||
| 47 | Selling and Marketing Expense [Member] | Member | us-gaap:SellingAndMarketingExpenseMember | ||
| 48 | General and Administrative Expense [Member] | Member | us-gaap:GeneralAndAdministrativeExpenseMember | ||
| 49 | Business Interruption Loss [Line Items] | LineItems | us-gaap:BusinessInterruptionLossLineItems | ||
| 50 | Business Interruption Losses, Nature of Event | Concept (Text/String) | For Period | us-gaap:BusinessInterruptionLossesNatureOfEvent | |
| 51 | Gain on Business Interruption Insurance Recovery | Concept (Monetary) | For Period | Credit | us-gaap:GainOnBusinessInterruptionInsuranceRecovery |