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 |
|
| PRIMECAP Odyssey Stock Fund Series | PRIMECAP Odyssey Stock Fund Class | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 25.59% | 12.82% | 21.23% | (10.86%) | 25.11% | 9.97% | 27.14% | (7.14%) | 25.96% | 12.80% |
| PRIMECAP Odyssey Growth Fund Series | PRIMECAP Odyssey Growth Fund Class | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 33.00% | 13.01% | 23.87% | (14.35%) | 18.54% | 16.77% | 23.97% | (4.51%) | 32.05% | 8.42% |
| PRIMECAP Odyssey Aggressive Growth Fund Series | PRIMECAP Odyssey Aggressive Growth Fund Class | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 28.73% | 12.50% | 25.03% | (24.03%) | 9.38% | 29.00% | 23.50% | (6.93%) | 33.59% | 11.73% |