C000030200C000030202C000030204C000030203C000157740C000030199Investment Type [Axis]Commercial Mortgage-Backed SecuritiesForeign Governments/AgenciesCash EquivalentsEmerging Markets Core FundHigh Yield Bond Core FundProject and Trade Finance Core FundCollaterized Mortgage ObligationsMortgage-Backed SecuritiesCorporate BondsU.S. TreasuriesNo Trading Symbol [Flag]AssetsNetInvestmentCompanyPortfolioTurnover