Shareholder Report, Line Graph (Details) - USD ($) |
7 Months Ended | 12 Months Ended | 19 Months Ended | 31 Months Ended | 43 Months Ended | 55 Months Ended | 67 Months Ended | 79 Months Ended | 91 Months Ended | 103 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
May 16, 2017 |
Dec. 31, 2017 |
Dec. 31, 2025 |
Dec. 31, 2018 |
Dec. 31, 2019 |
Dec. 31, 2020 |
Dec. 31, 2021 |
Dec. 31, 2022 |
Dec. 31, 2023 |
Dec. 31, 2024 |
Dec. 31, 2025 |
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| C000234546 | |||||||||||||||
| Account Value [Line Items] | |||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,180 | $ 9,761 | $ 10,510 | $ 10,091 | $ 11,465 | $ 11,810 | $ 12,420 | $ 12,946 | $ 13,471 | |||||
| C000234545 | |||||||||||||||
| Account Value [Line Items] | |||||||||||||||
| Line Graph and Table Measure Name | FS Multi-Strategy Alternatives Fund, Class I Shares | ||||||||||||||
| Accumulated Value | 100,000 | 101,900 | 98,010 | 105,625 | 101,766 | 115,974 | 119,637 | 126,146 | 131,884 | 137,575 | |||||
| S&P 500 Index (USD) (TR) | |||||||||||||||
| Account Value [Line Items] | |||||||||||||||
| Line Graph and Table Measure Name | [1] | S&P 500 Index (USD) (TR) | |||||||||||||
| Accumulated Value | 10,000 | 11,275 | 10,781 | 14,175 | 16,783 | 21,601 | 17,689 | 22,339 | 27,928 | 32,921 | |||||
| S&P 500 Index (USD) (TR) | |||||||||||||||
| Account Value [Line Items] | |||||||||||||||
| Line Graph and Table Measure Name | [2] | S&P 500 Index (USD) (TR) | |||||||||||||
| Accumulated Value | 100,000 | 112,751 | 107,807 | 141,752 | 167,833 | 216,010 | 176,889 | 223,388 | 279,280 | 329,215 | |||||
| ICE BofA U.S. 3-Month Treasury Bill Index (USD) | |||||||||||||||
| Account Value [Line Items] | |||||||||||||||
| Line Graph and Table Measure Name | ICE BofA U.S. 3-Month Treasury Bill Index (USD) | ||||||||||||||
| Accumulated Value | 10,000 | 10,066 | 10,254 | 10,488 | 10,558 | 10,563 | 10,717 | 11,254 | 11,845 | 12,340 | |||||
| HFR (HFRX) Global Hedge Fund Index (USD) (TR) | |||||||||||||||
| Account Value [Line Items] | |||||||||||||||
| Line Graph and Table Measure Name | [1] | HFR (HFRX) Global Hedge Fund Index (USD) (TR) | |||||||||||||
| Accumulated Value | 10,000 | 10,348 | 9,652 | 10,484 | 11,199 | 11,607 | 11,096 | 11,440 | 12,043 | 12,902 | |||||
| ICE BofA U.S. 3-Month Treasury Bill Index (USD) | |||||||||||||||
| Account Value [Line Items] | |||||||||||||||
| Line Graph and Table Measure Name | ICE BofA U.S. 3-Month Treasury Bill Index (USD) | ||||||||||||||
| Accumulated Value | 100,000 | 100,656 | 102,543 | 104,881 | 105,581 | 105,633 | 107,170 | 112,545 | 118,455 | 123,404 | |||||
| HFR (HFRX) Global Hedge Fund Index (USD) (TR) | |||||||||||||||
| Account Value [Line Items] | |||||||||||||||
| Line Graph and Table Measure Name | [2] | HFR (HFRX) Global Hedge Fund Index (USD) (TR) | |||||||||||||
| Accumulated Value | $ 100,000 | $ 103,478 | $ 96,523 | $ 104,844 | $ 111,986 | $ 116,074 | $ 110,960 | $ 114,404 | $ 120,428 | $ 129,024 | |||||
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