| 
                DFA International Core Equity Portfolio
             | 
                        
                Jul 31, 2023
             | 
                        
                78.7K
             | 
                        
                283.7K
             | 
                        
                0.2%
             | 
                    
                
                        | 
                iShares International Small-Cap Equity Factor ETF
             | 
                        
                Aug 31, 2023
             | 
                        
                77.4K
             | 
                        
                263.5K
             | 
                        
                0.2%
             | 
                    
                
                        | 
                Avantis International Small Cap Value ETF
             | 
                        
                Sep 30, 2023
             | 
                        
                47.3K
             | 
                        
                142.8K
             | 
                        
                0.1%
             | 
                    
                
                        | 
                Old Westbury Small & Mid Cap Strategies Fund
             | 
                        
                Jul 31, 2023
             | 
                        
                38.3K
             | 
                        
                138.0K
             | 
                        
                0.1%
             | 
                    
                
                        | 
                SPDR Portfolio Developed World ex-US ETF
             | 
                        
                Aug 31, 2023
             | 
                        
                38.9K
             | 
                        
                132.5K
             | 
                        
                0.1%
             | 
                    
                
                        | 
                Avantis International Equity ETF
             | 
                        
                Sep 30, 2023
             | 
                        
                14.6K
             | 
                        
                44.0K
             | 
                        
                0.0%
             | 
                    
                
                        | 
                Dimensional ETF Tr-Dimensional World ex U.S. Core Equity 2 ETF
             | 
                        
                Jul 31, 2023
             | 
                        
                9.1K
             | 
                        
                32.6K
             | 
                        
                0.0%
             | 
                    
                
                        | 
                Dimensional ETF Tr-Dimensional International Small Cap ETF
             | 
                        
                Jul 31, 2023
             | 
                        
                8.1K
             | 
                        
                29.2K
             | 
                        
                0.0%
             | 
                    
                
                        | 
                DFA International Vector Equity Port
             | 
                        
                Jul 31, 2023
             | 
                        
                7.5K
             | 
                        
                26.9K
             | 
                        
                0.0%
             | 
                    
                
                        | 
                DFA Continental Small Company Series
             | 
                        
                Jul 31, 2023
             | 
                        
                11.0K
             | 
                        
                39.6K
             | 
                        
                0.0%
             |