| 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 | Extraordinary and Unusual Items [Abstract] | Abstract | us-gaap:ExtraordinaryAndUnusualItemsAbstract | ||
| 3 | Extraordinary Items Disclosure [Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:ExtraordinaryItemsDisclosureTextBlock | |
| 4 | Schedule of Extraordinary Items [Table Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:ScheduleOfExtraordinaryItemsTextBlock | |
| 5 | Extraordinary Items [Table] | Table | us-gaap:ExtraordinaryItemsTable | ||
| 6 | Extraordinary Item [Axis] | Axis | us-gaap:ExtraordinaryItemAxis | ||
| 7 | Extraordinary Item [Domain] | Member | us-gaap:ExtraordinaryItemDomain | ||
| 8 | Natural Disasters and Other Casualty Events [Member] | Member | us-gaap:NaturalDisastersAndOtherCasualtyEventsMember | ||
| 9 | Extraordinary Item [Line Items] | LineItems | us-gaap:ExtraordinaryItemLineItems | ||
| 10 | Extraordinary Item, Description of Event or Transaction | Concept (Text/String) | For Period | us-gaap:ExtraordinaryItemDescriptionOfEventOrTransaction | |
| 11 | Extraordinary Item, Earnings Per Share Impact, Gross | Concept (Share) | For Period | us-gaap:ExtraordinaryItemEarningsPerShareImpactGross | |
| 12 | Extraordinary Item, Earnings Per Share Impact, Net | Concept (Share) | For Period | us-gaap:ExtraordinaryItemEarningsPerShareImpactNet | |
| 13 | Extraordinary Item, Change in Prior Period Estimate, Year of Origin | Concept (Year) | For Period | us-gaap:ExtraordinaryItemChangeInPriorPeriodEstimateYearOfOrigin | |
| 14 | Extraordinary Item of Investee | Concept (Monetary) | For Period | Credit | us-gaap:ExtraordinaryItemOfInvestee |
| 15 | Extraordinary Item, Fourth Quarter | Concept (Monetary) | For Period | Credit | us-gaap:ExtraordinaryItemFourthQuarter |
| 16 | Extraordinary Item, Gain (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] | Abstract | us-gaap:ExtraordinaryItemNetOfTaxAbstract | ||
| 17 | Extraordinary Item, Gain (Loss), Gross | Concept (Monetary) | For Period | Credit | us-gaap:ExtraordinaryItemsGross |
| 18 | Tax Effect of Extraordinary Item, Gain (Loss) | Concept (Monetary) | For Period | Debit | us-gaap:TaxEffectOfExtraordinaryItem |
| 19 | Extraordinary Item, Gain (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total | Concept (Monetary) | For Period | Credit | us-gaap:ExtraordinaryItemNetOfTax |
| 20 | Unusual or Infrequent Items Disclosure [Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:UnusualOrInfrequentItemsDisclosureTextBlock | |
| 21 | Schedule of Unusual or Infrequent Items [Table Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:ScheduleOfUnusualOrInfrequentItemsTextBlock | |
| 22 | Unusual or Infrequent Item [Table] | Table | us-gaap:UnusualOrInfrequentItemTable | ||
| 23 | Unusual or Infrequent Item [Axis] | Axis | us-gaap:UnusualOrInfrequentItemAxis | ||
| 24 | Unusual or Infrequent Item [Domain] | Member | us-gaap:UnusualOrInfrequentItemDomain | ||
| 25 | Unusual or Infrequent Item [Line Items] | LineItems | us-gaap:UnusualOrInfrequentItemLineItems | ||
| 26 | Unusual or Infrequent Item, Nature of Event or Transaction | Concept (Text/String) | For Period | us-gaap:UnusualOrInfrequentItemNatureOfEventOrTransaction | |
| 27 | Unusual or Infrequent Item, Description of Contingencies | Concept (Text/String) | For Period | us-gaap:UnusualOrInfrequentItemDescriptionOfContingencies | |
| 28 | Unusual or Infrequent Item, Net (Gain) Loss [Abstract] | Abstract | us-gaap:UnusualOrInfrequentItemNetGainLossAbstract | ||
| 29 | Unusual or Infrequent Item, Net of Insurance Proceeds [Abstract] | Abstract | us-gaap:UnusualOrInfrequentItemNetOfInsuranceProceedsAbstract | ||
| 30 | Unusual or Infrequent Item, Loss, Gross | Concept (Monetary) | For Period | Debit | us-gaap:UnusualOrInfrequentItemLossGross |
| 31 | Unusual or Infrequent Item, Insurance Proceeds | Concept (Monetary) | For Period | Credit | us-gaap:UnusualOrInfrequentItemInsuranceProceeds |
| 32 | Unusual or Infrequent Item, Net of Insurance Proceeds, Total | Concept (Monetary) | For Period | Debit | us-gaap:UnusualOrInfrequentItemNetOfInsuranceProceeds |
| 33 | Unusual or Infrequent Item, Gain, Gross | Concept (Monetary) | For Period | Credit | us-gaap:UnusualOrInfrequentItemGainGross |
| 34 | Unusual or Infrequent Item, Net (Gain) Loss, Total | Concept (Monetary) | For Period | Debit | us-gaap:UnusualOrInfrequentItemNetGainLoss |
| 35 | Unusual or Infrequent Item, Earnings Per Share Impact, Gross | Concept (Share) | For Period | us-gaap:UnusualOrInfrequentItemEarningsPerShareImpactGross | |
| 36 | Unusual or Infrequent Item, Earnings Per Share Impact, Net | Concept (Share) | For Period | us-gaap:UnusualOrInfrequentItemEarningsPerShareImpactNet | |
| 37 | Unusual or Infrequent Item, Fourth Quarter | Concept (Monetary) | For Period | Debit | us-gaap:UnusualOrInfrequentItemFourthQuarter |
| 38 | Unusual or Infrequent, Tax Effect | Concept (Monetary) | For Period | Debit | us-gaap:UnusualOrInfrequentTaxEffect |
| 39 | Business Insurance Recoveries [Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:BusinessInsuranceRecoveriesTextBlock | |
| 40 | Schedule of Business Insurance Recoveries [Table Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:ScheduleOfBusinessInsuranceRecoveriesTextBlock | |
| 41 | Schedule of Business Insurance Recoveries [Table] | Table | us-gaap:ScheduleOfBusinessInsuranceRecoveriesTable | ||
| 42 | Business Interruption Loss [Axis] | Axis | us-gaap:BusinessInterruptionLossAxis | ||
| 43 | Business Interruption Loss [Domain] | Member | us-gaap:BusinessInterruptionLossDomain | ||
| 44 | Income Statement Location [Axis] | Axis | us-gaap:IncomeStatementLocationAxis | ||
| 45 | Income Statement Location [Domain] | Member | us-gaap:IncomeStatementLocationDomain | ||
| 46 | Sales [Member] | Member | us-gaap:SalesMember | ||
| 47 | Trading Revenue [Member] | Member | us-gaap:TradingRevenueMember | ||
| 48 | Cost of Sales [Member] | Member | us-gaap:CostOfSalesMember | ||
| 49 | Principal or Proprietary Transactions [Member] | Member | us-gaap:PrincipalOrProprietaryTransactionsMember | ||
| 50 | Asset Management Income [Member] | Member | us-gaap:AssetManagementIncomeMember | ||
| 51 | Other Income [Member] | Member | us-gaap:OtherIncomeMember | ||
| 52 | Interest Income [Member] | Member | us-gaap:InterestIncomeMember | ||
| 53 | Investment Income [Member] | Member | us-gaap:InvestmentIncomeMember | ||
| 54 | Operating Income (Loss) [Member] | Member | us-gaap:OperatingIncomeLossMember | ||
| 55 | Other Operating Income (Expense) [Member] | Member | us-gaap:OtherOperatingIncomeExpenseMember | ||
| 56 | Interest Expense [Member] | Member | us-gaap:InterestExpenseMember | ||
| 57 | Operating Expense [Member] | Member | us-gaap:OperatingExpenseMember | ||
| 58 | Other Expense [Member] | Member | us-gaap:OtherExpenseMember | ||
| 59 | Nonoperating Income (Expense) [Member] | Member | us-gaap:NonoperatingIncomeExpenseMember | ||
| 60 | Other Nonoperating Income (Expense) [Member] | Member | us-gaap:OtherNonoperatingIncomeExpenseMember | ||
| 61 | Foreign Currency Gain (Loss) [Member] | Member | us-gaap:ForeignCurrencyGainLossMember | ||
| 62 | Sale of Subsidiary Gain (Loss) [Member] | Member | us-gaap:SaleOfSubsidiaryGainLossMember | ||
| 63 | Selling, General and Administrative Expenses [Member] | Member | us-gaap:SellingGeneralAndAdministrativeExpensesMember | ||
| 64 | Selling and Marketing Expense [Member] | Member | us-gaap:SellingAndMarketingExpenseMember | ||
| 65 | General and Administrative Expense [Member] | Member | us-gaap:GeneralAndAdministrativeExpenseMember | ||
| 66 | Business Interruption Loss [Line Items] | LineItems | us-gaap:BusinessInterruptionLossLineItems | ||
| 67 | Business Interruption Losses, Nature of Event | Concept (Text/String) | For Period | us-gaap:BusinessInterruptionLossesNatureOfEvent | |
| 68 | Gain on Business Interruption Insurance Recovery | Concept (Monetary) | For Period | Credit | us-gaap:GainOnBusinessInterruptionInsuranceRecovery |