Shareholder Report, Line Graph (Details) 190918_SGI Small Cap Core Fund_Institutional_TSR Annual {Institutional} - USD ($) |
12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Aug. 31, 2025 |
Aug. 31, 2024 |
Aug. 31, 2023 |
Aug. 31, 2022 |
Aug. 31, 2021 |
Aug. 31, 2020 |
Aug. 31, 2019 |
Aug. 31, 2018 |
Aug. 31, 2017 |
Aug. 31, 2016 |
Aug. 31, 2026 |
|
| Institutional | |||||||||||
| Account Value [Line Items] | |||||||||||
| Accumulated Value | $ 2,342,514 | $ 2,212,589 | $ 1,884,950 | $ 1,739,355 | $ 1,931,073 | $ 1,335,357 | $ 1,213,501 | $ 1,445,040 | $ 1,186,667 | $ 1,000,000 | $ 2,940,122 |
| S&P Composite 1500 TR [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | S&P Composite 1500 Total Return Index | ||||||||||
| Accumulated Value | 3,357,921 | 2,918,421 | 2,308,578 | 2,000,735 | 2,253,178 | 1,701,362 | 1,415,115 | 1,391,146 | 1,158,696 | 1,000,000 | $ 4,039,945 |
| S&P 600 (TR) [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | S&P 600 Total Return Index | ||||||||||
| Accumulated Value | 2,194,532 | 2,120,185 | 1,807,277 | 1,712,529 | 1,948,768 | 1,265,677 | 1,272,672 | 1,498,262 | 1,131,094 | 1,000,000 | $ 2,722,902 |
| Russell 3000 Total Return [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Russell 3000 Total Return | ||||||||||
| Accumulated Value | $ 3,321,996 | $ 2,867,747 | $ 2,273,384 | $ 1,981,036 | $ 2,284,457 | $ 1,717,081 | $ 1,413,916 | $ 1,395,635 | $ 1,160,627 | $ 1,000,000 | $ 3,989,848 |