Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| SEQUOIA FUND INC | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 20.79% | 27.83% | (30.52%) | 25.48% | 23.33% | 29.12% | (2.62%) | 20.07% | (6.90%) | (7.31%) |