v3.26.1
Shareholder Report, Average Annual Return (Details)
12 Months Ended 60 Months Ended 120 Months Ended
Jun. 30, 2026
Jun. 30, 2026
Jun. 30, 2026
SA U.S. Fixed Income Fund | SA U.S Fixed Income Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SAUFX    
Average Annual Return, Percent 3.62% 2.09% 1.42%
SA Global Fixed Income Fund | SA Global Fixed Income Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SAXIX    
Average Annual Return, Percent 3.93% 1.55% 1.30%
SA U.S. Core Market Fund | SA U.S. Core Market Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SAMKX    
Average Annual Return, Percent 21.06% 12.00% 14.62%
SA U.S. Value Fund | SA U.S. Value Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SABTX    
Average Annual Return, Percent 33.24% 11.46% 11.65%
SA U.S. Small Company Fund | SA U.S. Small Company Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SAUMX    
Average Annual Return, Percent 31.62% 9.13% 11.33%
SA International Value Fund | SA International Value Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SAHMX    
Average Annual Return, Percent 28.93% 13.73% 11.22%
SA International Small Company Fund | SA International Small Company Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SAISX    
Average Annual Return, Percent 17.41% 7.21% 8.75%
SA Emerging Markets Value Fund | SA Emerging Markets Value Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SAEMX    
Average Annual Return, Percent 38.50% 10.29% 9.77%
SA Real Estate Securities Fund | SA Real Estate Securities Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SAREX    
Average Annual Return, Percent 13.93% 2.98% 4.80%
SA Worldwide Moderate Growth Fund | SA Worldwide Moderate Growth Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SAWMX    
Average Annual Return, Percent 20.79% 8.91% 9.25%
Regulatory Index [Member] | SA U.S Fixed Income Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Regulatory Index    
Average Annual Return, Percent 3.81% 0.04% 1.52%
Regulatory Index [Member] | SA Global Fixed Income Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Regulatory Index    
Average Annual Return, Percent 3.21% 0.43% 1.67%
Regulatory Index [Member] | SA U.S. Core Market Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Regulatory Index    
Average Annual Return, Percent 23.02% 12.31% 15.09%
Regulatory Index [Member] | SA U.S. Value Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Regulatory Index    
Average Annual Return, Percent 23.02% 12.31% 15.09%
Regulatory Index [Member] | SA U.S. Small Company Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Regulatory Index    
Average Annual Return, Percent 23.02% 12.31% 15.09%
Regulatory Index [Member] | SA International Value Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Regulatory Index    
Average Annual Return, Percent 20.85% 8.80% 9.64%
Regulatory Index [Member] | SA International Small Company Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Regulatory Index    
Average Annual Return, Percent 20.85% 8.80% 9.64%
Regulatory Index [Member] | SA Emerging Markets Value Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Regulatory Index    
Average Annual Return, Percent 38.85% 7.23% 10.11%
Regulatory Index [Member] | SA Real Estate Securities Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Regulatory Index    
Average Annual Return, Percent 23.02% 12.31% 15.09%
Regulatory Index [Member] | SA Worldwide Moderate Growth Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Regulatory Index    
Average Annual Return, Percent 23.78% 10.51% 12.45%
Additional Index [Member] | SA U.S Fixed Income Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Additional Index    
Average Annual Return, Percent 3.15% 2.06% 1.99%
Additional Index [Member] | SA Global Fixed Income Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Additional Index    
Average Annual Return, Percent 3.22% 2.28% 2.08%
Additional Index [Member] | SA U.S. Value Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Additional Index    
Average Annual Return, Percent 23.55% 11.83% 12.63%
Additional Index [Member] | SA U.S. Small Company Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Additional Index    
Average Annual Return, Percent 31.35% 6.64% 10.96%
Additional Index [Member] | SA International Value Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Additional Index    
Average Annual Return, Percent 27.47% 12.92% 10.61%
Additional Index [Member] | SA International Small Company Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Additional Index    
Average Annual Return, Percent 20.30% 5.82% 8.28%
Additional Index [Member] | SA Emerging Markets Value Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Additional Index    
Average Annual Return, Percent 40.98% 10.80% 11.46%
Additional Index [Member] | SA Real Estate Securities Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Additional Index    
Average Annual Return, Percent 14.74% 3.67% 5.80%
Additional Index [Member] | SA Worldwide Moderate Growth Fund [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Additional Index    
Average Annual Return, Percent 15.00% 7.42% 9.23%