Janus Henderson 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 R T Shares [Member] | Janus Henderson Mid Cap Value Fund | Class T | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 6.70% | 13.11% | 11.26% | (5.10%) | 19.38% | (1.50%) | 30.16% | (13.31%) | 13.88% | 18.75% |