v3.25.2
Shareholder Report, Line Graph (Details) - USD ($)
 12 Months Ended 24 Months Ended 36 Months Ended 48 Months Ended 60 Months Ended 72 Months Ended 84 Months Ended 96 Months Ended 108 Months Ended 120 Months Ended
Jul. 01, 2015
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2025
SA U.S. Fixed Income Fund                        
Account Value [Line Items]                        
Accumulated Value   $ 10,000 $ 10,053 $ 10,064 $ 10,081 $ 10,341 $ 10,488 $ 10,438 $ 9,850 $ 10,012 $ 10,540 $ 11,173
SA Global Fixed Income Fund                        
Account Value [Line Items]                        
Accumulated Value   10,000 10,232 10,198 10,202 10,600 10,755 10,778 9,970 10,075 10,598 11,200
SA U.S. Core Market Fund                        
Account Value [Line Items]                        
Accumulated Value   10,000 10,131 11,935 13,833 15,120 16,073 22,492 19,694 23,474 28,941 32,741
SA U.S. Value Fund                        
Account Value [Line Items]                        
Accumulated Value   10,000 9,865 11,904 13,046 13,363 11,569 17,257 15,897 17,695 20,519 22,279
SA U.S. Small Company Fund                        
Account Value [Line Items]                        
Accumulated Value   10,000 9,477 11,457 13,135 12,617 11,273 17,906 15,176 17,497 19,497 21,055
SA International Value Fund                        
Account Value [Line Items]                        
Accumulated Value   10,000 8,234 10,359 11,251 10,589 8,724 12,531 11,457 13,411 15,097 18,489
SA International Small Company Fund                        
Account Value [Line Items]                        
Accumulated Value   10,000 9,519 11,696 12,673 11,653 10,807 15,555 12,393 13,862 15,230 18,761
SA Emerging Markets Value Fund                        
Account Value [Line Items]                        
Accumulated Value   10,000 8,705 10,830 11,397 11,507 9,252 13,555 11,512 12,401 14,472 15,967
SA Real Estate Securities Fund                        
Account Value [Line Items]                        
Accumulated Value   10,000 12,356 11,988 12,364 14,011 12,965 17,058 15,948 15,158 16,009 17,336
SA Worldwide Moderate Growth Fund                        
Account Value [Line Items]                        
Accumulated Value $ 10,000   9,611 11,057 11,953 12,255 11,357 15,185 13,823 15,284 17,252 19,268
SA U.S. Fixed Income Fund Primary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 10,583 10,546 10,504 11,329 12,315 12,278 11,019 10,902 11,182 11,854
SA U.S. Fixed Income Fund Secondary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 10,160 10,196 10,221 10,662 11,114 11,171 10,751 10,801 11,323 11,990
SA Global Fixed Income Fund Primary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 10,764 10,692 10,878 11,726 12,443 12,430 11,237 11,184 11,615 12,308
SA Global Fixed Income Fund Secondary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 10,240 10,274 10,380 10,833 11,229 11,245 10,876 10,944 11,491 12,193
S A U.S. Core Market Fund Primary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 10,226 12,122 13,918 15,193 16,190 23,337 20,036 23,855 29,434 33,895
S A U.S. Value Fund Primary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 10,226 12,122 13,918 15,193 16,190 23,337 20,036 23,855 29,434 33,895
S A U.S. Value Fund Secondary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 10,564 12,336 13,416 14,622 14,007 19,836 18,937 21,419 25,166 28,077
SA U.S. Small Company Fund Primary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 10,226 12,122 13,918 15,193 16,190 23,337 20,036 23,855 29,434 33,895
SA U.S. Small Company Fund Secondary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 9,491 11,565 13,481 13,120 11,965 19,464 14,915 16,985 18,692 20,440
SA International Value Fund Primary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 9,117 10,893 11,721 11,755 11,167 15,016 12,348 14,367 15,912 18,941
SA International Value Fund Secondary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 8,719 10,772 11,294 11,143 9,486 13,019 11,611 13,538 15,253 18,754
SA International Small Company Fund Primary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 9,117 10,893 11,721 11,755 11,167 15,016 12,348 14,367 15,912 18,941
SA International Small Company Fund Secondary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 9,607 11,636 12,899 12,132 11,594 16,036 12,176 13,344 14,379 17,691
SA Emerging Markets Value Fund Primary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 8,894 10,841 11,631 11,921 11,489 16,430 12,526 12,975 14,793 16,775
SA Emerging Markets Value Fund Secondary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 8,771 11,122 11,703 12,466 10,751 15,554 12,979 13,761 15,699 18,419
SA Real Estate Securities Fund Primary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   10,000 10,226 12,122 13,918 15,193 16,190 23,337 20,036 23,855 29,434 33,895
SA Real Estate Securities Fund Secondary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value   $ 10,000 12,265 12,225 12,767 14,512 13,646 17,986 16,940 16,209 17,122 18,776
S A Worldwide Moderate Growth Fund Primary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value 10,000   9,630 11,444 12,691 13,321 13,490 18,892 15,781 18,326 21,735 25,161
S A Worldwide Moderate Growth Fund Secondary Benchmark [Member]                        
Account Value [Line Items]                        
Accumulated Value $ 10,000   $ 10,239 $ 11,345 $ 12,257 $ 13,207 $ 14,004 $ 17,307 $ 15,190 $ 16,821 $ 19,193 $ 21,527