 | us-gaap:GainOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstate |
 | us-gaap:LossOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstate |
 | us-gaap:GainLossOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstate |
 | us-gaap:GainOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstateStatementTable |
 | us-gaap:LossOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstateStatementTable |
 | us-gaap:GainLossOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectRealEstateStatementTable |
 | us-gaap:GainOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect |
 | us-gaap:LossOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect |
 | us-gaap:GainLossOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirect |
 | us-gaap:GainOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectStatementTable |
 | us-gaap:LossOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectStatementTable |
 | us-gaap:GainLossOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectStatementTable |
 | us-gaap:GainOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperations |
 | us-gaap:LossOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperations |
 | us-gaap:GainLossOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperations |
 | us-gaap:GainOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperationsStatementTable |
 | us-gaap:LossOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperationsStatementTable |
 | us-gaap:GainLossOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectDepositBasedOperationsStatementTable |
 | us-gaap:GainOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperations |
 | us-gaap:LossOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperations |
 | us-gaap:GainLossOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperations |
 | us-gaap:GainOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable |
 | us-gaap:LossOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable |
 | us-gaap:GainLossOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectInvestmentBasedOperationsStatementTable |
 | us-gaap:GainOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperations |
 | us-gaap:LossOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperations |
 | us-gaap:GainLossOnSaleOfInvestments | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperations |
 | us-gaap:GainOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable |
 | us-gaap:LossOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable |
 | us-gaap:GainLossOnSaleOfInvestments | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfCashFlowsIndirectSecuritiesBasedOperationsStatementTable |