Average Annual Total Returns - Beck, Mack & Oliver Partners Fund |
12 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| S&P 500® Index(reflects no deduction for fees, expenses or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 17.88% | 14.42% | 14.82% |
| Beck, Mack & Oliver Partners Fund Shares | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 5.42% | 15.48% | 12.19% |
| Beck, Mack & Oliver Partners Fund Shares | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 5.42% | 15.47% | 12.13% |
| Beck, Mack & Oliver Partners Fund Shares | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 3.21% | 12.51% | 10.18% |