v3.26.1
Expense Example
Mar. 29, 2026
USD ($)
HORIZON EXPEDITION PLUS ETF | HORIZON EXPEDITION PLUS ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 88
Expense Example, with Redemption, 3 Years 274
Expense Example, with Redemption, 5 Years 477
Expense Example, with Redemption, 10 Years 1,061
Horizon Landmark ETF | Horizon Landmark ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 41
Expense Example, with Redemption, 3 Years 128
Expense Example, with Redemption, 5 Years 224
Expense Example, with Redemption, 10 Years 505
Horizon Dividend Income ETF | Horizon Dividend Income ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 72
Expense Example, with Redemption, 3 Years 224
Expense Example, with Redemption, 5 Years 390
Expense Example, with Redemption, 10 Years 871
Horizon Core Equity ETF | Horizon Core Equity ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 72
Expense Example, with Redemption, 3 Years 224
Expense Example, with Redemption, 5 Years 390
Expense Example, with Redemption, 10 Years 871
Horizon Managed Risk ETF | Horizon Managed Risk ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 79
Expense Example, with Redemption, 3 Years 246
Expense Example, with Redemption, 5 Years 428
Expense Example, with Redemption, 10 Years 954
Horizon Core Bond ETF | Horizon Core Bond ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 67
Expense Example, with Redemption, 3 Years 211
Expense Example, with Redemption, 5 Years 368
Expense Example, with Redemption, 10 Years 822
Horizon Flexible Income ETF | Horizon Flexible Income ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 84
Expense Example, with Redemption, 3 Years 262
Expense Example, with Redemption, 5 Years 455
Expense Example, with Redemption, 10 Years 1,014
Horizon Nasdaq-100 Defined Risk ETF | Horizon Nasdaq-100 Defined Risk ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 87
Expense Example, with Redemption, 3 Years 271
Expense Example, with Redemption, 5 Years 471
Expense Example, with Redemption, 10 Years 1,049
Horizon Digital Frontier ETF | Horizon Digital Frontier ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 77
Expense Example, with Redemption, 3 Years 240
Expense Example, with Redemption, 5 Years 417
Expense Example, with Redemption, 10 Years 930
HORIZON SMALL/MID CAP CORE EQUITY ETF | HORIZON SMALL/MID CAP CORE EQUITY ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 77
Expense Example, with Redemption, 3 Years 240
Expense Example, with Redemption, 5 Years 417
Expense Example, with Redemption, 10 Years 930
HORIZON INTERNATIONAL EQUITY ETF | HORIZON INTERNATIONAL EQUITY ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 77
Expense Example, with Redemption, 3 Years 240
Expense Example, with Redemption, 5 Years 417
Expense Example, with Redemption, 10 Years 930
HORIZON INTERNATIONAL MANAGED RISK ETF | HORIZON INTERNATIONAL MANAGED RISK ETF Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 84
Expense Example, with Redemption, 3 Years 262
Expense Example, with Redemption, 5 Years 455
Expense Example, with Redemption, 10 Years $ 1,014