v3.25.1
Average Annual Total Returns - Institutional Shares
 12 Months Ended 60 Months Ended 120 Months Ended
Nov. 30, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Prospectus [Line Items]        
Average Annual Return, Percent [1]   5.11% 2.36% 1.65%
Performance Inception Date [1] Mar. 03, 1997      
[1] Because Token Shares have not had returns for a full calendar year as of the date of this Prospectus, the figures shown above provide performance for Institutional Shares of the Fund (which are not offered in this Prospectus). Token Shares would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the share classes do not have the same expenses.