v3.25.4
Expense Example
Feb. 27, 2026
USD ($)
Janus Henderson Transformational Growth ETF | Janus Henderson Transformational Growth ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 58
Expense Example, with Redemption, 3 Years 183
Expense Example, with Redemption, 5 Years 318
Expense Example, with Redemption, 10 Years 714
Janus Henderson Asset-Backed Securities ETF  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 34
Expense Example, with Redemption, 3 Years 108
Janus Henderson AAA CLO ETF | Janus Henderson AAA CLO ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 20
Expense Example, with Redemption, 3 Years 64
Expense Example, with Redemption, 5 Years 113
Expense Example, with Redemption, 10 Years 255
Janus Henderson B-BBB CLO ETF | Janus Henderson B-BBB CLO ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 48
Expense Example, with Redemption, 3 Years 151
Expense Example, with Redemption, 5 Years 263
Expense Example, with Redemption, 10 Years 591
Janus Henderson Corporate Bond ETF | Janus Henderson Corporate Bond ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 20
Expense Example, with Redemption, 3 Years 97
Expense Example, with Redemption, 5 Years 181
Expense Example, with Redemption, 10 Years 428
Janus Henderson Emerging Markets Debt Hard Currency ETF | Janus Henderson Corporate Bond ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 53
Expense Example, with Redemption, 3 Years 167
Expense Example, with Redemption, 5 Years 291
Expense Example, with Redemption, 10 Years 653
Janus Henderson Income ETF | Janus Henderson Income ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 55
Expense Example, with Redemption, 3 Years 177
Expense Example, with Redemption, 5 Years 311
Expense Example, with Redemption, 10 Years 700
Janus Henderson Mortgage-Backed Securities ETF | Janus Henderson Mortgage-Backed Securities ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 22
Expense Example, with Redemption, 3 Years 68
Expense Example, with Redemption, 5 Years 118
Expense Example, with Redemption, 10 Years 268
Janus Henderson Securitized Income ETF | Janus Henderson Securitized Income ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 51
Expense Example, with Redemption, 3 Years 163
Expense Example, with Redemption, 5 Years 284
Expense Example, with Redemption, 10 Years 640
Janus Henderson Short Duration Income ETF | Janus Henderson Short Duration Income ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 24
Expense Example, with Redemption, 3 Years 74
Expense Example, with Redemption, 5 Years 130
Expense Example, with Redemption, 10 Years 293
Janus Henderson Global Artificial Intelligence ETF | Janus Henderson Global Artificial Intelligence ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 60
Expense Example, with Redemption, 3 Years 189
Janus Henderson U.S. Real Estate ETF | Janus Henderson U.S. Real Estate ETF  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 66
Expense Example, with Redemption, 3 Years 208
Expense Example, with Redemption, 5 Years 362
Expense Example, with Redemption, 10 Years 810
Janus Henderson Mid Cap Growth Alpha ETF | Janus Henderson Mid Cap Growth Alpha ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 31
Expense Example, with Redemption, 3 Years 97
Expense Example, with Redemption, 5 Years 169
Expense Example, with Redemption, 10 Years 381
Janus Henderson Small Cap Growth Alpha ETF | Janus Henderson Small Cap Growth Alpha ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 31
Expense Example, with Redemption, 3 Years 97
Expense Example, with Redemption, 5 Years 169
Expense Example, with Redemption, 10 Years 381
Janus Henderson Small/Mid Cap Growth Alpha ETF | Janus Henderson Small/Mid Cap Growth Alpha ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 31
Expense Example, with Redemption, 3 Years 97
Expense Example, with Redemption, 5 Years 169
Expense Example, with Redemption, 10 Years $ 381