Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
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 |
|
| The Chesapeake Growth Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 16.22% | 10.97% | 24.70% | (28.72%) | 15.56% | 24.23% | 27.99% | (1.74%) | 23.65% | 2.69% |