| DFA Investment Dimensions-DFA Int'l Real Estate Securities | Jul 31, 2023 | 4.1M | 3.0M | 0.3% | 
                
                        | Vanguard Global ex U.S. Real Estate Index Fund | Jul 31, 2023 | 2.5M | 1.8M | 0.2% | 
                
                        | iShares MSCI EAFE Small Cap ETF | Aug 31, 2023 | 2.5M | 1.7M | 0.2% | 
                
                        | Advanced Series Tr-AST/Prudential Growth Allocation Port | Jun 30, 2023 | 2.2M | 1.5M | 0.2% | 
                
                        | iShares Global REIT ETF | Aug 31, 2023 | 1.2M | 829.3K | 0.1% | 
                
                        | iShares International Small-Cap Equity Factor ETF | Aug 31, 2023 | 772K | 540.4K | 0.1% | 
                
                        | College Retirement Equities Fund-Stock Account | Jun 30, 2023 | 493.3K | 347.8K | 0.0% | 
                
                        | SPDR (R) Idx Shares-SPDR (R) S&P (R) International Small Cap ETF | Aug 31, 2023 | 334.3K | 234.0K | 0.0% | 
                
                        | DBX ETF Trust-X-trackers International Real Estate ETF | May 31, 2023 | 342.3K | 255.0K | 0.0% | 
                
                        | Northern Global Real Estate Index Fund | Jun 30, 2023 | 299.7K | 211.3K | 0.0% |