 | us-gaap:LiabilitiesAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperations |
 | us-gaap:LiabilitiesAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-RealEstateOperationsStatementTable |
 | us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedFirstAlternative |
 | us-gaap:LiabilitiesAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-DepositBasedOperations |
 | us-gaap:Liabilities | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-DepositBasedOperations |
 | us-gaap:LiabilitiesAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionUnclassified-DepositBasedOperationsStatementTable |
 | us-gaap:DerivativeLiabilitiesAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/BalanceSheetOffsetting |
 | us-gaap:DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral | summation-item | http://fasb.org/us-gaap/role/disclosure/BalanceSheetOffsetting |
 | us-gaap:DerivativeLiabilitiesAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/BalanceSheetOffsettingOffsettingLiabilitiesTable |
 | us-gaap:DerivativeLiabilitiesAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/DerivativeInstrumentsAndHedgingActivities |
 | us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosures |
 | us-gaap:FinancialLiabilitiesFairValueDisclosureAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosures |
 | us-gaap:FinancialLiabilitiesFairValueDisclosure | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosures |
 | us-gaap:FinancialLiabilitiesFairValueDisclosureAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable |
 | us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable |
 | us-gaap:FinancialLiabilitiesFairValueDisclosureAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresFairValueByBalanceSheetGroupingTable |
 | us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceA |
 | us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInsuranceAFairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable |