Shareholder Report, Line Graph (Details) - USD ($) |
3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended | 15 Months Ended | 18 Months Ended | 21 Months Ended | 24 Months Ended | 27 Months Ended | 30 Months Ended | 33 Months Ended | 36 Months Ended | 39 Months Ended | 42 Months Ended | 45 Months Ended | 48 Months Ended | 51 Months Ended | 54 Months Ended | 57 Months Ended | 60 Months Ended | 63 Months Ended | 66 Months Ended | 69 Months Ended | 72 Months Ended | 75 Months Ended | 78 Months Ended | 81 Months Ended | 84 Months Ended | 87 Months Ended | 90 Months Ended | 93 Months Ended | 96 Months Ended | 99 Months Ended | 102 Months Ended | 105 Months Ended | 108 Months Ended | 111 Months Ended | 114 Months Ended | 117 Months Ended | 120 Months Ended | ||
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Mar. 31, 2016 |
Jun. 30, 2016 |
Sep. 30, 2016 |
Dec. 31, 2016 |
Mar. 31, 2026 |
Mar. 31, 2017 |
Jun. 30, 2017 |
Sep. 30, 2017 |
Dec. 31, 2017 |
Mar. 31, 2018 |
Jun. 30, 2018 |
Sep. 30, 2018 |
Dec. 31, 2018 |
Mar. 31, 2019 |
Jun. 30, 2019 |
Sep. 30, 2019 |
Dec. 31, 2019 |
Mar. 31, 2020 |
Jun. 30, 2020 |
Sep. 30, 2020 |
Dec. 31, 2020 |
Mar. 31, 2021 |
Jun. 30, 2021 |
Sep. 30, 2021 |
Dec. 31, 2021 |
Mar. 31, 2022 |
Jun. 30, 2022 |
Sep. 30, 2022 |
Dec. 31, 2022 |
Mar. 31, 2023 |
Jun. 30, 2023 |
Sep. 30, 2023 |
Dec. 31, 2023 |
Mar. 31, 2024 |
Jun. 30, 2024 |
Sep. 30, 2024 |
Dec. 31, 2024 |
Mar. 31, 2025 |
Jun. 30, 2025 |
Sep. 30, 2025 |
Dec. 31, 2025 |
Mar. 31, 2026 |
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| C000081163 | ||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | Beck Mack + Oliver Partners Fund | |||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,145 | $ 10,724 | $ 11,151 | $ 11,545 | $ 11,781 | $ 12,501 | $ 13,143 | $ 13,019 | $ 13,447 | $ 14,528 | $ 11,161 | $ 12,659 | $ 13,244 | $ 13,233 | $ 14,772 | $ 10,485 | $ 13,109 | $ 13,053 | $ 15,519 | $ 19,080 | $ 21,663 | $ 22,141 | $ 23,847 | $ 22,391 | $ 18,466 | $ 17,351 | $ 18,814 | $ 19,713 | $ 22,012 | $ 21,773 | $ 24,888 | $ 27,495 | $ 26,743 | $ 28,668 | $ 30,227 | $ 28,132 | $ 30,102 | $ 32,038 | $ 31,867 | $ 27,836 | |
| S&P 500® Index | ||||||||||||||||||||||||||||||||||||||||||
| Account Value [Line Items] | ||||||||||||||||||||||||||||||||||||||||||
| Line Graph and Table Measure Name | S&P 500<sup style="inset: 1.5px 0px 4px; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 700; grid-area: auto; line-height: 0px; margin: 0px; overflow: visible; position: relative; text-align: center; text-align-last: auto; white-space-collapse: preserve-breaks;">®</sup> Index | |||||||||||||||||||||||||||||||||||||||||
| Accumulated Value | $ 10,000 | $ 10,246 | $ 10,640 | $ 11,047 | $ 11,717 | $ 12,079 | $ 12,620 | $ 13,459 | $ 13,357 | $ 13,815 | $ 14,881 | $ 12,869 | $ 14,625 | $ 15,255 | $ 15,514 | $ 16,921 | $ 13,605 | $ 16,399 | $ 17,864 | $ 20,034 | $ 21,271 | $ 23,089 | $ 23,224 | $ 25,785 | $ 24,599 | $ 20,638 | $ 19,631 | $ 21,115 | $ 22,698 | $ 24,682 | $ 23,874 | $ 26,665 | $ 29,480 | $ 30,743 | $ 32,553 | $ 33,337 | $ 31,913 | $ 35,405 | $ 38,281 | $ 39,298 | $ 37,594 | |