| 
                VANGUARD CHESTER FUNDS-Vanguard PRIMECAP Fund
             | 
                        
                Jun 30, 2025
             | 
                        
                26.7M
             | 
                        
                1.9B
             | 
                        
                1.0%
             | 
                    
                
                        | 
                WASHINGTON MUTUAL INVESTORS FUND
             | 
                        
                Sep 30, 2025
             | 
                        
                16.2M
             | 
                        
                1.1B
             | 
                        
                0.6%
             | 
                    
                
                        | 
                Invesco QQQ Trust, Series 1
             | 
                        
                Sep 30, 2025
             | 
                        
                12.1M
             | 
                        
                855.6M
             | 
                        
                0.5%
             | 
                    
                
                        | 
                VANGUARD WELLINGTON FUND
             | 
                        
                Aug 31, 2025
             | 
                        
                9.4M
             | 
                        
                664.6M
             | 
                        
                0.4%
             | 
                    
                
                        | 
                PUTNAM LARGE CAP VALUE FUND
             | 
                        
                Jul 31, 2025
             | 
                        
                6.7M
             | 
                        
                471.1M
             | 
                        
                0.3%
             | 
                    
                
                        | 
                VANGUARD FENWAY FUNDS-Vanguard Equity Income Fund
             | 
                        
                Jun 30, 2025
             | 
                        
                6.4M
             | 
                        
                451.8M
             | 
                        
                0.2%
             | 
                    
                
                        | 
                -Price (T.Rowe) International Value Equity Trust
             | 
                        
                Jun 30, 2025
             | 
                        
                5.7M
             | 
                        
                398.9M
             | 
                        
                0.2%
             | 
                    
                
                        | 
                T. ROWE PRICE Intl Fd.S, INC.-T. Rowe Price Overseas Stock Fd.
             | 
                        
                Jul 31, 2025
             | 
                        
                5.5M
             | 
                        
                386.8M
             | 
                        
                0.2%
             | 
                    
                
                        | 
                VANGUARD FENWAY FUNDS-Vanguard PRIMECAP Core Fund
             | 
                        
                Jun 30, 2025
             | 
                        
                5.3M
             | 
                        
                372.7M
             | 
                        
                0.2%
             | 
                    
                
                        | 
                -Price (T.Rowe) U.S. Value Equity Trust
             | 
                        
                Jun 30, 2025
             | 
                        
                5.0M
             | 
                        
                351.9M
             | 
                        
                0.2%
             |