 | us-gaap:PaymentsToAcquireInvestmentsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstate |
 | us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestmentsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstate |
 | us-gaap:PaymentsForProceedsFromLoansReceivableAlternativeAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstate |
 | us-gaap:PaymentsForProceedsFromRealEstatePartnershipInvestmentNetAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstate |
 | us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestmentAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstate |
 | us-gaap:PaymentsForProceedsFromInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstate |
 | us-gaap:PaymentsToAcquireInvestmentsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstateStatementTable |
 | us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestmentsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstateStatementTable |
 | us-gaap:PaymentsForProceedsFromLoansReceivableAlternativeAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstateStatementTable |
 | us-gaap:PaymentsForProceedsFromRealEstatePartnershipInvestmentNetAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstateStatementTable |
 | us-gaap:ProceedsFromSaleOfRealEstateHeldforinvestmentAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstateStatementTable |
 | us-gaap:PaymentsForProceedsFromInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstateStatementTable |
 | us-gaap:PaymentsToAcquireInvestmentsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect |
 | us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestmentsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect |
 | us-gaap:PaymentsForProceedsFromLoansReceivableAlternativeAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect |
 | us-gaap:PaymentsForProceedsFromInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect |
 | us-gaap:PaymentsToAcquireInvestmentsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectStatementTable |
 | us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestmentsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectStatementTable |
 | us-gaap:PaymentsForProceedsFromLoansReceivableAlternativeAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectStatementTable |
 | us-gaap:PaymentsForProceedsFromInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectStatementTable |
 | us-gaap:PaymentsToAcquireInvestmentsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperations |
 | us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestmentsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperations |
 | us-gaap:PaymentsForProceedsFromInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperations |
 | us-gaap:PaymentsToAcquireInvestmentsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperationsStatementTable |
 | us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestmentsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperationsStatementTable |
 | us-gaap:PaymentsForProceedsFromInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperationsStatementTable |
 | us-gaap:PaymentsToAcquireInvestmentsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperations |
 | us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestmentsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperations |
 | us-gaap:PaymentsForProceedsFromRealEstatePartnershipInvestmentNetAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperations |
 | us-gaap:PaymentsForProceedsFromLoansReceivableAlternativeAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperations |
 | us-gaap:PaymentsForProceedsFromProceedsFromSaleOfRealEstateHeldforinvestmentAlternativeAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperations |
 | us-gaap:PaymentsForProceedsFromInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperations |
 | us-gaap:PaymentsToAcquireInvestmentsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable |
 | us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestmentsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable |
 | us-gaap:PaymentsForProceedsFromRealEstatePartnershipInvestmentNetAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable |
 | us-gaap:PaymentsForProceedsFromLoansReceivableAlternativeAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable |
 | us-gaap:PaymentsForProceedsFromProceedsFromSaleOfRealEstateHeldforinvestmentAlternativeAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable |
 | us-gaap:PaymentsForProceedsFromInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable |
 | us-gaap:PaymentsToAcquireInvestmentsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperations |
 | us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestmentsAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperations |
 | us-gaap:PaymentsForProceedsFromLoansReceivableAlternativeAbstract | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperations |
 | us-gaap:PaymentsForProceedsFromInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperations |
 | us-gaap:PaymentsToAcquireInvestmentsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable |
 | us-gaap:ProceedsFromSaleMaturityAndCollectionsOfInvestmentsAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable |
 | us-gaap:PaymentsForProceedsFromLoansReceivableAlternativeAbstract | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable |
 | us-gaap:PaymentsForProceedsFromInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable |