v3.26.1
Average Annual Total Returns
 12 Months Ended 34 Months Ended 36 Months Ended 60 Months Ended 71 Months Ended 72 Months Ended 78 Months Ended 95 Months Ended 96 Months Ended 102 Months Ended 108 Months Ended 112 Months Ended 119 Months Ended 120 Months Ended 124 Months Ended 136 Months Ended 143 Months Ended 147 Months Ended 167 Months Ended 168 Months Ended
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Horizon Active Asset Allocation Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   17.88%     14.42%                         14.82% [1]         14.70%  
Performance Inception Date Jan. 31, 2012                                              
Horizon Active Asset Allocation Fund | S&P Global BMI ex-US Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   31.34%     7.56%                         8.35% [1]         7.18%  
Performance Inception Date Jan. 31, 2012                                              
Horizon Active Asset Allocation Fund | Advisor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   16.34%     8.92%                         9.43% [1] 9.51% [1]          
Performance Inception Date Sep. 04, 2015                                              
Horizon Active Asset Allocation Fund | Institutional Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   16.61%     9.21%                     10.18% [1]                
Performance Inception Date Sep. 09, 2016                                              
Horizon Active Asset Allocation Fund | Investor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   16.55%     9.11%                         9.57% [1]         9.14%  
Performance Inception Date Jan. 31, 2012                                              
Horizon Active Asset Allocation Fund | Investor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   15.43%     6.61%                         7.35% [1]         7.02%  
Performance Inception Date Jan. 31, 2012                                              
Horizon Active Asset Allocation Fund | Investor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   10.70%     6.30%                         6.86% [1]         6.58%  
Performance Inception Date Jan. 31, 2012                                              
Horizon Active Risk Assist Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   17.88%     14.42%                         14.82%   13.44%        
Performance Inception Date Aug. 29, 2014                                              
Horizon Active Risk Assist Fund | S&P Global BMI ex-US Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   31.34%     7.56%                         8.35%   6.11%        
Performance Inception Date Aug. 29, 2014                                              
Horizon Active Risk Assist Fund | Bloomberg Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   7.30%     (0.36%)                         2.01%   1.92%        
Performance Inception Date Aug. 29, 2014                                              
Horizon Active Risk Assist Fund | Advisor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   13.78%     7.82%                         6.73% 6.62% [2]          
Performance Inception Date Sep. 04, 2015                                              
Horizon Active Risk Assist Fund | Institutional Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   14.09%     8.10%                     7.41% [2]                
Performance Inception Date Sep. 09, 2016                                              
Horizon Active Risk Assist Fund | Investor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   13.98%     7.99%                         6.88%   5.65%        
Performance Inception Date Aug. 29, 2014                                              
Horizon Active Risk Assist Fund | Investor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   11.34%     6.33%                         5.69%   4.59%        
Performance Inception Date Aug. 29, 2014                                              
Horizon Active Risk Assist Fund | Investor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   9.52%     5.89%                         5.18%   4.21%        
Performance Inception Date Aug. 29, 2014                                              
Horizon Active Income Fund | Bloomberg Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   7.30%     (0.36%)                         2.01%       2.15%    
Performance Inception Date Sep. 30, 2013                                              
Horizon Active Income Fund | Advisor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   4.95%     (1.19%)                       0.72%              
Performance Inception Date Feb. 08, 2016                                              
Horizon Active Income Fund | Institutional Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   5.16%     (0.98%)                     0.68% [3]                
Performance Inception Date Sep. 09, 2016                                              
Horizon Active Income Fund | Investor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   5.03%     (1.07%)                         0.85%       0.77% [3]    
Performance Inception Date Sep. 30, 2013                                              
Horizon Active Income Fund | Investor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   3.32%     (2.31%)                         (0.24%)       (0.23%) [3]    
Performance Inception Date Sep. 30, 2013                                              
Horizon Active Income Fund | Investor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   2.96%     (1.33%)                         0.21%       0.18% [3]    
Performance Inception Date Sep. 30, 2013                                              
Horizon Equity Premium Income Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   17.88%     14.42%                   15.07%                  
Performance Inception Date Dec. 28, 2016                                              
Horizon Equity Premium Income Fund | CBOE S&P 500 Buy-Write Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   8.91%     9.33%                 7.29%                    
Performance Inception Date Dec. 28, 2016                                              
Horizon Equity Premium Income Fund | Advisor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   18.69%     11.31%               8.50%                      
Performance Inception Date Jun. 20, 2017                                              
Horizon Equity Premium Income Fund | Investor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   18.89%     11.49%                 9.25%                    
Performance Inception Date Dec. 28, 2016                                              
Horizon Equity Premium Income Fund | Investor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   18.72%     11.00%                 8.48%                    
Performance Inception Date Dec. 28, 2016                                              
Horizon Equity Premium Income Fund | Investor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   11.28%     9.01%                 7.20%                    
Performance Inception Date Dec. 28, 2016                                              
Horizon Defined Risk Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   17.88%     14.42%             14.24%                        
Performance Inception Date Dec. 28, 2017                                              
Horizon Defined Risk Fund | Bloomberg U.S. Treasury 1-3 Years Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   5.17%     1.75%             2.14%                        
Performance Inception Date Dec. 28, 2017                                              
Horizon Defined Risk Fund | Advisor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   10.61%     8.45%         7.27%                            
Performance Inception Date Feb. 02, 2018                                              
Horizon Defined Risk Fund | Investor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   10.78%     8.63%             7.49%                        
Performance Inception Date Dec. 28, 2017                                              
Horizon Defined Risk Fund | Investor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   10.73%     8.50%             7.36%                        
Performance Inception Date Dec. 28, 2017                                              
Horizon Defined Risk Fund | Investor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   6.42%     6.79%             5.98%                        
Performance Inception Date Dec. 28, 2017                                              
Horizon Multi-Factor U.S. Equity Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   17.88%     14.42%       15.81%                              
Performance Inception Date Jun. 26, 2019                                              
Horizon Multi-Factor U.S. Equity Fund | MSCI USA Minimum Volatility Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   7.84%     8.58%       8.77%                              
Performance Inception Date Jun. 26, 2019                                              
Horizon Multi-Factor U.S. Equity Fund | Advisor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   15.05%     12.01% 11.08%                                    
Performance Inception Date Jan. 31, 2020                                              
Horizon Multi-Factor U.S. Equity Fund | Investor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   15.24%     12.16%       11.01%                              
Performance Inception Date Jun. 26, 2019                                              
Horizon Multi-Factor U.S. Equity Fund | Investor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   13.17%     9.02%       8.59%                              
Performance Inception Date Jun. 26, 2019                                              
Horizon Multi-Factor U.S. Equity Fund | Investor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   10.03%     8.29%       7.78%                              
Performance Inception Date Jun. 26, 2019                                              
Horizon Defensive Core Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   17.88%     14.42%     14.99%                                
Performance Inception Date Dec. 26, 2019                                              
Horizon Defensive Core Fund | Advisor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   9.33%     11.18%   12.78%                                  
Performance Inception Date Jan. 08, 2020                                              
Horizon Defensive Core Fund | Investor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   9.48%     11.35%     12.94%                                
Performance Inception Date Dec. 26, 2019                                              
Horizon Defensive Core Fund | Investor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   5.78%     10.33%     11.89%                                
Performance Inception Date Dec. 26, 2019                                              
Horizon Defensive Core Fund | Investor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   8.29%     8.95%     10.30%                                
Performance Inception Date Dec. 26, 2019                                              
Horizon Tactical Fixed Income Fund | Bloomberg US Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   7.30%   4.30% [8]                                        
Performance Inception Date Dec. 20, 2022                                              
Horizon Tactical Fixed Income Fund | Advisor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   1.98% 1.78% [8]                                          
Performance Inception Date Mar. 07, 2023                                              
Horizon Tactical Fixed Income Fund | Investor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   2.13%   1.59% [8]                                        
Performance Inception Date Dec. 20, 2022                                              
Horizon Tactical Fixed Income Fund | Investor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   (0.08%)   (0.26%) [8]                                        
Performance Inception Date Dec. 20, 2022                                              
Horizon Tactical Fixed Income Fund | Investor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   1.24%   0.42% [8]                                        
Performance Inception Date Dec. 20, 2022                                              
Horizon Multi-Factor Small/Mid Cap Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent [9]   17.88%   22.96% [10]                                        
Performance Inception Date Dec. 20, 2022                                              
Horizon Multi-Factor Small/Mid Cap Fund | S&P 1000 Total Return Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent [9]   7.04%   12.14% [10]                                        
Performance Inception Date Dec. 20, 2022                                              
Horizon Multi-Factor Small/Mid Cap Fund | Advisor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   7.66% 15.48% [10]                                          
Performance Inception Date Mar. 07, 2023                                              
Horizon Multi-Factor Small/Mid Cap Fund | Investor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   7.80%   17.26% [10]                                        
Performance Inception Date Dec. 20, 2022                                              
Horizon Multi-Factor Small/Mid Cap Fund | Investor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   7.69%   16.85% [10]                                        
Performance Inception Date Dec. 20, 2022                                              
Horizon Multi-Factor Small/Mid Cap Fund | Investor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   4.70%   13.47% [10]                                        
Performance Inception Date Dec. 20, 2022                                              
Centre American Select Equity Fund | S&P 500 Total Return Index (reflects no deduction for fees, expenses or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   17.88%     14.42%                         14.82%     13.63%      
Performance Inception Date Jan. 21, 2014                                              
Centre American Select Equity Fund | Advisor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   19.28%     13.97%                         13.81%           13.81%
Performance Inception Date Dec. 21, 2011                                              
Centre American Select Equity Fund | Investor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   19.53%     14.38%                         14.22%     12.67%      
Performance Inception Date Jan. 21, 2014                                              
Centre American Select Equity Fund | Investor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   12.33%     10.32%                         9.94%     8.67%      
Performance Inception Date Jan. 21, 2014                                              
Centre American Select Equity Fund | Investor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   16.83%     10.12%                         9.60%     8.41%      
Performance Inception Date Jan. 21, 2014                                              
Centre Global Infrastructure Fund | MSCI World Index (reflects no deduction for fees, expenses, or taxes)                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   21.09%     12.15%           10.81%                          
Performance Inception Date Jan. 29, 2018                                              
Centre Global Infrastructure Fund | S&P Global Infrastructure Index                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   21.54%     10.02%           6.79%                          
Performance Inception Date Jan. 29, 2018                                              
Centre Global Infrastructure Fund | Advisor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   16.12%     9.11%           6.29%                          
Performance Inception Date Jan. 29, 2018                                              
Centre Global Infrastructure Fund | Advisor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   14.93%     8.09%           5.22%                          
Performance Inception Date Jan. 29, 2018                                              
Centre Global Infrastructure Fund | Advisor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   9.99%     6.73%           4.45%                          
Performance Inception Date Jan. 29, 2018                                              
Centre Global Infrastructure Fund | Investor Class                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   16.38%     9.52%           6.64%                          
Performance Inception Date Jan. 29, 2018                                              
Centre Global Infrastructure Fund | Investor Class | After Taxes on Distributions                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   15.12%     8.32%           5.41%                          
Performance Inception Date Jan. 29, 2018                                              
Centre Global Infrastructure Fund | Investor Class | After Taxes on Distributions and Sales                                                
Prospectus [Line Items]                                                
Average Annual Return, Percent   10.17%     6.97%           4.65%                          
Performance Inception Date Jan. 29, 2018                                              
[1] Investor Class shares commenced operations on January 31, 2012. Advisor Class shares commenced operations on September 4, 2015, and Institutional Class shares commenced operations on September 9, 2016. Index information is since inception of Investor Class shares.
[2] Investor Class shares commenced operations on August 29, 2014. Advisor Class shares commenced operations on September 4, 2015, and Institutional Class shares commenced operations on September 9, 2016. Index information is since inception of Investor Class shares.
[3] Investor Class shares commenced operations on September 30, 2013. Advisor Class shares commenced operations on February 8, 2016, and Institutional Class shares commenced operations on September 9, 2016. Index information is since inception of Investor Class shares.
[4] Investor Class shares commenced operations on December 28, 2016. Advisor Class shares commenced operations on June 20, 2017. Institutional Class shares had not commenced operations prior to the date of this Prospectus. Index information is since inception of Investor Class shares.
[5] Investor Class shares commenced operations on December 28, 2017. Advisor Class shares commenced operations on February 2, 2018. Institutional Class shares had not commenced operations prior to the date of this Prospectus. Index information is since inception of Investor Class shares.
[6] Investor Class shares commenced operations on June 26, 2019. Advisor Class shares commenced operations on January 31, 2020. Institutional Class shares had not commenced operations prior to the date of this Prospectus. Index information is since inception of Investor Class shares.
[7] Investor Class shares commenced operations on December 26, 2019. Advisor Class shares commenced operations on January 8, 2020. Institutional Class shares had not commenced operations prior to the date of this Prospectus. Index information is since inception of Investor Class shares.
[8] Investor Class shares commenced operations on December 20, 2022. Advisor Class shares commenced operations on March 7, 2023. Institutional Class shares had not commenced operations prior to the date of this Prospectus. Index information is since inception of Investor Class shares.
[9] As a result of new regulatory requirements, the Fund’s regulatory index has changed from the S&P 1000 Total Return Index to the S&P 500 Total Return Index.
[10] Inception date is December 20, 2022 for Investor Class Shares and March 7, 2023 for Advisor Class Shares. Institutional Class shares had not commenced operations prior to the date of this Prospectus. Index information is since inception of Investor Class shares.
[11] The inception date of the Select Equity Predecessor Fund’s Investor Class shares (the Fund’s Advisor class) is December 21, 2011 and the inception date of the Institutional Class shares (the Fund’s Investor class) is January 21, 2014.
[12] The inception date of the Global Infrastructure Predecessor Fund’s Investor Class (the Fund’s Advisor Class) and Institutional Class (the Fund’s Investor Class) shares is January 29, 2018.