v3.26.1
S000005358 [Member] Investment Objectives and Goals - EMERGING MARKETS EQUITY INDEX FUND
Mar. 31, 2026
Prospectus [Line Items]  
Risk/Return [Heading] EMERGING MARKETS EQUITY INDEX FUND
Objective [Heading] INVESTMENT OBJECTIVE
Objective, Primary [Text Block]
The Fund seeks to provide investment results approximating the overall performance of the MSCI Emerging Markets Index (the “Index”).