v3.26.3
Average Annual Total Returns
 12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Investor Class Shares | SA U.S. Fixed Income Fund | Morningstar® US Core Bond Index      
Prospectus [Line Items]      
Average Annual Return, Percent [1] 7.12% (0.43%) 1.96%
Investor Class Shares | SA U.S. Fixed Income Fund | Morningstar® US 1-3 Yr Composite Government and Corporate Bond Index      
Prospectus [Line Items]      
Average Annual Return, Percent [1] 5.28% 1.90% 2.07%
Investor Class Shares | SA U.S. Fixed Income Fund | SA U.S. Fixed Income Fund      
Prospectus [Line Items]      
Average Annual Return, Percent 5.85% 1.78% 1.39%
Investor Class Shares | SA U.S. Fixed Income Fund | SA U.S. Fixed Income Fund | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 4.00% 0.65% 0.62%
Investor Class Shares | SA U.S. Fixed Income Fund | SA U.S. Fixed Income Fund | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 3.44% 0.86% 0.73%
Investor Class Shares | SA Global Fixed Income Fund | Morningstar® Global Core Bond Hedged Index      
Prospectus [Line Items]      
Average Annual Return, Percent [2] 4.68% (0.17%) 2.14%
Investor Class Shares | SA Global Fixed Income Fund | Morningstar® Global 1-5 Yr Treasury Bond Hedged Index      
Prospectus [Line Items]      
Average Annual Return, Percent [2] 5.03% 1.99% 2.16%
Investor Class Shares | SA Global Fixed Income Fund | SA Global Fixed Income Fund      
Prospectus [Line Items]      
Average Annual Return, Percent 4.87% 1.16% 1.33%
Investor Class Shares | SA Global Fixed Income Fund | SA Global Fixed Income Fund | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 2.87% 0.00% 0.38%
Investor Class Shares | SA Global Fixed Income Fund | SA Global Fixed Income Fund | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 2.88% 0.38% 0.61%
Investor Class Shares | SA U.S. Core Market Fund | Morningstar® US Market Extended Index      
Prospectus [Line Items]      
Average Annual Return, Percent 17.21% 13.13% 14.31%
Investor Class Shares | SA U.S. Core Market Fund | SA U.S. Core Market Fund      
Prospectus [Line Items]      
Average Annual Return, Percent 15.80% 12.73% 13.88%
Investor Class Shares | SA U.S. Core Market Fund | SA U.S. Core Market Fund | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 15.62% 11.92% 12.53%
Investor Class Shares | SA U.S. Core Market Fund | SA U.S. Core Market Fund | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 9.48% 9.97% 11.13%
Investor Class Shares | SA U.S. Value Fund | Morningstar® US Market Extended Index      
Prospectus [Line Items]      
Average Annual Return, Percent [3] 17.21% 13.13% 14.31%
Investor Class Shares | SA U.S. Value Fund | Morningstar® US Large-Mid Cap Broad Value Index      
Prospectus [Line Items]      
Average Annual Return, Percent [3] 18.83% 13.38% 12.50%
Investor Class Shares | SA U.S. Value Fund | SA U.S. Value Fund      
Prospectus [Line Items]      
Average Annual Return, Percent 17.69% 11.74% 10.13%
Investor Class Shares | SA U.S. Value Fund | SA U.S. Value Fund | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 16.63% 10.71% 8.84%
Investor Class Shares | SA U.S. Value Fund | SA U.S. Value Fund | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 11.21% 9.19% 7.96%
Investor Class Shares | SA U.S. Small Company Fund | Morningstar® US Market Extended Index      
Prospectus [Line Items]      
Average Annual Return, Percent [4] 17.21% 13.13% 14.31%
Investor Class Shares | SA U.S. Small Company Fund | Morningstar® US Small Cap Extended Index      
Prospectus [Line Items]      
Average Annual Return, Percent [4] 11.86% 6.94% 9.67%
Investor Class Shares | SA U.S. Small Company Fund | SA U.S. Small Company Fund      
Prospectus [Line Items]      
Average Annual Return, Percent 8.87% 8.92% 9.60%
Investor Class Shares | SA U.S. Small Company Fund | SA U.S. Small Company Fund | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 8.74% 7.44% 8.27%
Investor Class Shares | SA U.S. Small Company Fund | SA U.S. Small Company Fund | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 5.35% 6.81% 7.56%
Investor Class Shares | SA International Value Fund | Morningstar® Developed Markets ex-US All Cap Target Market Exposure Index      
Prospectus [Line Items]      
Average Annual Return, Percent [5] 32.36% 9.00% 8.44%
Investor Class Shares | SA International Value Fund | Morningstar® Developed Markets ex-US Value Target Market Exposure Index      
Prospectus [Line Items]      
Average Annual Return, Percent [5] 40.48% 13.56% 9.07%
Investor Class Shares | SA International Value Fund | SA International Value Fund      
Prospectus [Line Items]      
Average Annual Return, Percent 44.06% 14.90% 9.44%
Investor Class Shares | SA International Value Fund | SA International Value Fund | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 42.39% 13.97% 8.75%
Investor Class Shares | SA International Value Fund | SA International Value Fund | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 27.40% 11.88% 7.65%
Investor Class Shares | SA International Small Company Fund | Morningstar® Developed Markets ex-US Small-Cap Target Market Exposure Index      
Prospectus [Line Items]      
Average Annual Return, Percent [6] 34.54% 5.89% 7.31%
Investor Class Shares | SA International Small Company Fund | SA International Small Company Fund      
Prospectus [Line Items]      
Average Annual Return, Percent 35.62% 8.27% 7.96%
Investor Class Shares | SA International Small Company Fund | SA International Small Company Fund | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 33.79% 7.11% 6.87%
Investor Class Shares | SA International Small Company Fund | SA International Small Company Fund | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 22.36% 6.36% 6.26%
Investor Class Shares | SA International Small Company Fund | SA International Small Company Fund | Morningstar® Developed Markets ex-US All Cap Target Market Exposure Index      
Prospectus [Line Items]      
Average Annual Return, Percent [6] 32.36% 9.00% 8.44%
Investor Class Shares | SA Emerging Markets Value Fund | Morningstar® Emerging Markets All Cap Target Market Exposure Index      
Prospectus [Line Items]      
Average Annual Return, Percent [7] 29.91% 4.82% 8.64%
Investor Class Shares | SA Emerging Markets Value Fund | Morningstar® Emerging Markets Value Target Market Exposure Index      
Prospectus [Line Items]      
Average Annual Return, Percent [7] 37.99% 8.87% 10.49%
Investor Class Shares | SA Emerging Markets Value Fund | SA Emerging Markets Value Fund      
Prospectus [Line Items]      
Average Annual Return, Percent 29.21% 9.02% 8.54%
Investor Class Shares | SA Emerging Markets Value Fund | SA Emerging Markets Value Fund | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 28.08% 8.07% 7.93%
Investor Class Shares | SA Emerging Markets Value Fund | SA Emerging Markets Value Fund | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 17.93% 6.93% 6.90%
Investor Class Shares | SA Real Estate Securities Fund | Morningstar® US Market Extended Index      
Prospectus [Line Items]      
Average Annual Return, Percent [8] 17.21% 13.13% 14.31%
Investor Class Shares | SA Real Estate Securities Fund | Morningstar® US REIT Index      
Prospectus [Line Items]      
Average Annual Return, Percent [8] 2.80% 4.81% 5.74%
Investor Class Shares | SA Real Estate Securities Fund | SA Real Estate Securities Fund      
Prospectus [Line Items]      
Average Annual Return, Percent 0.75% 4.15% 4.65%
Investor Class Shares | SA Real Estate Securities Fund | SA Real Estate Securities Fund | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent (0.23%) 2.73% 3.29%
Investor Class Shares | SA Real Estate Securities Fund | SA Real Estate Securities Fund | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 0.75% 3.00% 3.31%
SA Worldwide Moderately Aggressive Fund Investor Class Shares | SA Worldwide Moderately Aggressive Fund | Morningstar® Global Markets Index      
Prospectus [Line Items]      
Average Annual Return, Percent [9] 22.13% 10.68% 11.40%
SA Worldwide Moderately Aggressive Fund Investor Class Shares | SA Worldwide Moderately Aggressive Fund | Morningstar® US Moderate Target Allocation Index      
Prospectus [Line Items]      
Average Annual Return, Percent [9] 14.60% 7.54% 8.88%
SA Worldwide Moderately Aggressive Fund Investor Class Shares | SA Worldwide Moderately Aggressive Fund | SA Worldwide Moderately Aggressive Fund      
Prospectus [Line Items]      
Average Annual Return, Percent 18.16% 9.40% 8.40%
SA Worldwide Moderately Aggressive Fund Investor Class Shares | SA Worldwide Moderately Aggressive Fund | SA Worldwide Moderately Aggressive Fund | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 16.33% 7.78% 7.05%
SA Worldwide Moderately Aggressive Fund Investor Class Shares | SA Worldwide Moderately Aggressive Fund | SA Worldwide Moderately Aggressive Fund | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 11.62% 7.05% 6.46%
[1] The Morningstar® US Core Bond IndexSM serves as the Fund’s regulatory index and provides a broad measure of market performance.  The Morningstar® US 1-3 Yr Composite Government and Corporate Bond IndexSM is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index.
[2] The Morningstar® Global Core Bond Hedged IndexSM serves as the Fund’s regulatory index and provides a broad measure of market performance. The Morningstar® Global 1-5 Yr Treasury Bond Hedged IndexSM is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index.
[3] The Morningstar® US Market Extended IndexSM serves as the Fund’s regulatory index and provides a broad measure of market performance. The Morningstar® US Large-Mid Cap Broad Value IndexSM is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index.
[4] The Morningstar® US Market Extended IndexSM serves as the Fund’s regulatory index and provides a broad measure of market performance.  The Morningstar® US Small Cap Extended IndexSM is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index.
[5] The Morningstar® Developed Markets ex-US All Cap Target Market Exposure IndexSM serves as the Fund’s regulatory index and provides a broad measure of market performance.  The Morningstar® Developed Markets ex-US Value Target Market Exposure IndexSM is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index.
[6] The Morningstar® Developed Markets ex-US All Cap Target Market Exposure IndexSM serves as the Fund’s regulatory index and provides a broad measure of market performance.  The Morningstar® Developed Markets ex-US Small-Cap Target Market Exposure IndexSM is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index.
[7] The Morningstar® Emerging Markets All Cap Target Market Exposure IndexSM serves as the Fund’s regulatory index and provides a broad measure of market performance. The Morningstar® Emerging Markets Value Target Market Exposure IndexSM is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index.
[8] The Morningstar® US Market Extended IndexSM serves as the Fund’s regulatory index and provides a broad measure of market performance.  The Morningstar® US REIT IndexSM is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index.
[9] The Morningstar® Global IndexSM serves as the Fund’s regulatory index and provides a broad measure of market performance. The Morningstar® US Moderate Target Allocation IndexSM is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index.