Janus Henderson Government Money Market Fund Average Annual Total Returns - Class I N T Shares [Member] - Return Before Taxes[Member] |
12 Months Ended | 13 Months Ended | 14 Months Ended | 60 Months Ended | 120 Months Ended | |
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Class I | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 4.13% | 2.21% | ||||
| Performance Inception Date | Dec. 09, 2024 | |||||
| Class N | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 4.13% | 2.21% | ||||
| Performance Inception Date | Oct. 18, 2024 | |||||
| Class T | ||||||
| Prospectus [Line Items] | ||||||
| Average Annual Return, Percent | 3.86% | 2.84% | 1.76% |