 | us-gaap:IncomeLossFromContinuingOperationsAttributableToParentAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternative |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternative |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeAlternativeStatementTable |
 | us-gaap:IncomeLossFromContinuingOperationsAttributableToParentAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITs |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITs |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateExcludingREITsStatementTable |
 | us-gaap:IncomeLossFromContinuingOperationsAttributableToParentAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrusts |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrusts |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeRealEstateInvestmentTrustsStatementTable |
 | us-gaap:IncomeLossFromContinuingOperations | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncomeDiscontinuedOperationsAlternate |
 | us-gaap:IncomeLossFromContinuingOperationsAttributableToParentAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncome |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncome |
 | us-gaap:ProfitLoss | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfIncome |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeStatementTable |
 | us-gaap:IncomeLossFromContinuingOperationsAttributableToParentAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInterestBasedRevenue |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInterestBasedRevenue |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInterestBasedRevenueStatementTable |
 | us-gaap:IncomeLossFromContinuingOperationsAttributableToParentAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInsuranceBasedRevenue |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInsuranceBasedRevenue |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeInsuranceBasedRevenueStatementTable |
 | us-gaap:IncomeLossFromContinuingOperationsAttributableToParentAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeSecuritiesBasedIncome |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncomeSecuritiesBasedIncome |
 | us-gaap:IncomeLossFromContinuingOperationsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeSecuritiesBasedIncomeStatementTable |
 | us-gaap:IncomeStatementAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsEquityMethodAndJointVentures |
 | us-gaap:IncomeStatementAbstract | domain-member | http://fasb.org/us-gaap/role/disclosure/InvestmentsEquityMethodAndJointVenturesScheduleOfEquityMethodInvestmentsTable |
 | srt:AffiliateCollateralizedSecurityLineItems | parent-child | http://fasb.org/us-gaap/role/disclosure/SECDisclosureSecurityRegisteredOrBeingRegistered |
 | srt:GuarantorAndIssuerGuaranteedSecurityLineItems | parent-child | http://fasb.org/us-gaap/role/disclosure/SECDisclosureSecurityRegisteredOrBeingRegistered |
 | srt:AffiliateCollateralizedSecurityLineItems | domain-member | http://fasb.org/us-gaap/role/disclosure/SECDisclosureSecurityRegisteredOrBeingRegisteredAffiliateCollateralizedSecurityTable |
 | srt:GuarantorAndIssuerGuaranteedSecurityLineItems | domain-member | http://fasb.org/us-gaap/role/disclosure/SECDisclosureSecurityRegisteredOrBeingRegisteredGuarantorAndIssuerGuaranteedSecurityTable |