Janus Henderson Small-Mid Cap Value Fund 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 |
|
| Class A C S I N T Shares [Member] | Janus Henderson Small-Mid Cap Value Fund | Class I | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 4.46% | 16.33% | 15.25% | (8.86%) | 16.31% | (3.09%) | 26.89% | (7.12%) | 14.05% | 19.52% |