 | us-gaap:RestructuringCostsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstate |
 | us-gaap:RestructuringCostsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstateStatementTable |
 | us-gaap:RestructuringReservePeriodIncreaseDecrease | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedFirstAlternative |
 | us-gaap:RestructuringReservePeriodIncreaseDecrease | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfFinancialPositionClassifiedSecondAlternative |
 | us-gaap:PaymentsForOperatingActivitiesAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsDirect |
 | us-gaap:PaymentsForOperatingActivities | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsDirect |
 | us-gaap:PaymentsForOperatingActivitiesAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsDirectStatementTable |
 | us-gaap:RestructuringCostsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect |
 | us-gaap:RestructuringCostsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectStatementTable |
 | us-gaap:RestructuringCostsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperations |
 | us-gaap:RestructuringCostsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperationsStatementTable |
 | us-gaap:RestructuringCostsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperations |
 | us-gaap:RestructuringCostsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable |
 | us-gaap:RestructuringCostsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperations |
 | us-gaap:RestructuringCostsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable |
 | us-gaap:RestructuringCostsAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/ExitOrDisposalCostObligations |
 | us-gaap:RestructuringReserveRollForward | parent-child | http://fasb.org/us-gaap/role/disclosure/ExitOrDisposalCostObligations |
 | us-gaap:RestructuringCostsAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/ExitOrDisposalCostObligationsScheduleOfRestructuringAndRelatedCostsTable |