v3.26.3
Janus Henderson Global Allocation Fund - Conservative Expense Example - Class A C S I T Shares [Member] - Janus Henderson Global Allocation Fund - Conservative
Jun. 30, 2026
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 663
Expense Example, with Redemption, 3 Years 857
Expense Example, with Redemption, 5 Years 1,068
Expense Example, with Redemption, 10 Years 1,672
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 269
Expense Example, with Redemption, 3 Years 530
Expense Example, with Redemption, 5 Years 915
Expense Example, with Redemption, 10 Years 1,799
Class S  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 110
Expense Example, with Redemption, 3 Years 352
Expense Example, with Redemption, 5 Years 613
Expense Example, with Redemption, 10 Years 1,360
Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 70
Expense Example, with Redemption, 3 Years 225
Expense Example, with Redemption, 5 Years 393
Expense Example, with Redemption, 10 Years 881
Class T  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 85
Expense Example, with Redemption, 3 Years 269
Expense Example, with Redemption, 5 Years 469
Expense Example, with Redemption, 10 Years $ 1,047