Shareholder Report, Average Annual Return (Details) |
6 Months Ended | 60 Months Ended | 120 Months Ended |
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2026 |
Mar. 31, 2026 |
|
| The Cook & Bynum Fund [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | The Cook & Bynum Fund | ||
| Average Annual Return, Percent | 8.42% | 8.24% | 4.10% |
| MSCI ACWI Net Total Return Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI ACWI Net Total Return Index | ||
| Average Annual Return, Percent | 20.01% | 9.48% | 11.33% |