v3.25.4
Average Annual Total Returns
 1 Months Ended 2 Months Ended 3 Months Ended 4 Months Ended 5 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended 17 Months Ended
Oct. 31, 2025
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2024
Innovator Equity Defined Protection ETF - 6 Mo Jan/Jul                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent               7.62%   6.68%    
Performance Inception Date Jun. 28, 2024                      
Innovator Equity Defined Protection ETF - 6 Mo Jan/Jul | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent               7.62%   6.68%    
Innovator Equity Defined Protection ETF - 6 Mo Jan/Jul | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent               5.83%   3.95%    
Innovator Equity Defined Protection ETF - 6 Mo Apr/Oct                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent         3.30%         2.82%    
Performance Inception Date Sep. 30, 2024                      
Innovator Equity Defined Protection ETF - 6 Mo Apr/Oct | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent         3.30%         2.82%    
Innovator Equity Defined Protection ETF - 6 Mo Apr/Oct | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent         2.52%         1.67%    
Innovator Equity Defined Protection ETF - 1 Yr January                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent   6.79%               6.79%    
Performance Inception Date Dec. 31, 2024                      
Innovator Equity Defined Protection ETF - 1 Yr January | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent   6.79%               6.79%    
Innovator Equity Defined Protection ETF - 1 Yr January | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent   4.02%               4.02%    
Innovator Equity Defined Protection ETF - 1 Yr July                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent               7.97%   7.47%    
Performance Inception Date Jun. 28, 2024                      
Innovator Equity Defined Protection ETF - 1 Yr July | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent               7.97%   7.47%    
Innovator Equity Defined Protection ETF - 1 Yr July | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent               6.10%   4.42%    
Innovator Equity Defined Protection ETF - 1 Yr August                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent             7.71%     7.36%    
Performance Inception Date Jul. 31, 2024                      
Innovator Equity Defined Protection ETF - 1 Yr August | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent             7.71%     7.36%    
Innovator Equity Defined Protection ETF - 1 Yr August | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent             5.90%     4.36%    
Innovator Equity Defined Protection ETF - 1 Yr September                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent           6.58%       6.80%    
Performance Inception Date Aug. 30, 2024                      
Innovator Equity Defined Protection ETF - 1 Yr September | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent           6.58%       6.80%    
Innovator Equity Defined Protection ETF - 1 Yr September | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent           5.02%       4.03%    
Innovator Equity Defined Protection ETF - 1 Yr October                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent         5.76%         6.28%    
Performance Inception Date Sep. 30, 2024                      
Innovator Equity Defined Protection ETF - 1 Yr October | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent         5.76%         6.28%    
Innovator Equity Defined Protection ETF - 1 Yr October | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent         4.39%         3.72%    
Innovator Equity Defined Protection ETF - 1 Yr November                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent       6.38%           6.18%    
Performance Inception Date Oct. 31, 2024                      
Innovator Equity Defined Protection ETF - 1 Yr November | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent       6.38%           6.18%    
Innovator Equity Defined Protection ETF - 1 Yr November | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent       4.87%           3.66%    
Innovator Equity Defined Protection ETF - 1 Yr December                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent     6.95%             7.83%    
Performance Inception Date Nov. 29, 2024                      
Innovator Equity Defined Protection ETF - 1 Yr December | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent     6.95%             7.83%    
Innovator Equity Defined Protection ETF - 1 Yr December | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent     5.30%             4.64%    
Innovator Equity Defined Protection ETF - 2 Yr to April 2026                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent                 8.23% 7.60%    
Performance Inception Date Mar. 28, 2024                      
Innovator Equity Defined Protection ETF - 2 Yr to April 2026 | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent                 8.23% 7.60%    
Innovator Equity Defined Protection ETF - 2 Yr to April 2026 | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent                 6.32% 4.50%    
Innovator Equity Defined Protection ETF - 2 Yr to July 2026                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent               8.46%   7.66%    
Performance Inception Date Jun. 28, 2024                      
Innovator Equity Defined Protection ETF - 2 Yr to July 2026 | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent               8.46%   7.66%    
Innovator Equity Defined Protection ETF - 2 Yr to July 2026 | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent               6.48%   4.54%    
Innovator Equity Defined Protection ETF - 2 Yr to October 2026                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent         5.53%         6.74%    
Performance Inception Date Sep. 30, 2024                      
Innovator Equity Defined Protection ETF - 2 Yr to October 2026 | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent         5.53%         6.74%    
Innovator Equity Defined Protection ETF - 2 Yr to October 2026 | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent         4.22%         3.99%    
Innovator Equity Defined Protection ETF - 2 Yr to January 2027                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent   7.73%               7.73%    
Performance Inception Date Dec. 31, 2024                      
Innovator Equity Defined Protection ETF - 2 Yr to January 2027 | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent   7.73%               7.73%    
Innovator Equity Defined Protection ETF - 2 Yr to January 2027 | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent   4.57%               4.57%    
Innovator Equity Defined Protection ETF - 2 Yr to July 2027                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent                   6.42%   7.40%
Performance Inception Date Jul. 17, 2023                      
Innovator Equity Defined Protection ETF - 2 Yr to July 2027 | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent                   6.42%   7.40%
Innovator Equity Defined Protection ETF - 2 Yr to July 2027 | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent                   3.80%   5.71%
Innovator Equity Defined Protection ETF - 2 Yr to January 2028                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return Before Taxes                      
Average Annual Return, Percent                   5.88% 6.92%  
Performance Inception Date Dec. 29, 2023                      
Innovator Equity Defined Protection ETF - 2 Yr to January 2028 | After Taxes on Distributions                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions                      
Average Annual Return, Percent                   5.88% 6.92%  
Innovator Equity Defined Protection ETF - 2 Yr to January 2028 | After Taxes on Distributions and Sales                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares                      
Average Annual Return, Percent                   3.48% 5.32%  
S&P 500® Total Return Index (reflects no deduction for fees, expenses or taxes)                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] S&P 500® Total Return Index (reflects no deduction for fees, expenses or taxes)                      
Average Annual Return, Percent   17.88% 13.78% 18.43% 16.23% 16.96% 17.88% 17.66% 17.72% 17.88% 21.33% 20.01%
S&P 500® Price Return Index (reflects no deduction for fees, expenses or taxes)                        
Prospectus [Line Items]                        
Average Annual Return, Label [Optional Text] S&P 500® Price Return Index (reflects no deduction for fees, expenses or taxes)                      
Average Annual Return, Percent   16.39% 12.33% 16.89% 14.75% 15.46% 16.34% 16.15% 16.20% 16.39% 19.74% 18.37%