v3.26.3
Janus Henderson Global Allocation Fund - Growth Expense Example - Class A C S I T Shares [Member] - Janus Henderson Global Allocation Fund - Growth
Jun. 30, 2026
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 665
Expense Example, with Redemption, 3 Years 857
Expense Example, with Redemption, 5 Years 1,065
Expense Example, with Redemption, 10 Years 1,663
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 275
Expense Example, with Redemption, 3 Years 542
Expense Example, with Redemption, 5 Years 933
Expense Example, with Redemption, 10 Years 1,823
Class S  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 115
Expense Example, with Redemption, 3 Years 359
Expense Example, with Redemption, 5 Years 622
Expense Example, with Redemption, 10 Years 1,375
Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 74
Expense Example, with Redemption, 3 Years 230
Expense Example, with Redemption, 5 Years 401
Expense Example, with Redemption, 10 Years 894
Class T  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 90
Expense Example, with Redemption, 3 Years 281
Expense Example, with Redemption, 5 Years 488
Expense Example, with Redemption, 10 Years $ 1,084