Innovator Deepwater Frontier Tech ETF Innovator Equity Autocallable Income Strategy ETF Innovator Equity Premium Income - Daily PutWrite ETF Innovator Gradient Tactical Rotation Strategy ETF Innovator IBD(R) 50 ETF Innovator IBD Breakout Opportunities ETF Innovator Index Autocallable Income Strategy ETF Innovator Laddered Allocation Buffer ETF Innovator Laddered Allocation Power Buffer ETF Innovator S&P Investment Grade Preferred ETF Innovator Deepwater Frontier Tech ETF Innovator Equity Autocallable Income Strategy ETF Innovator Equity Premium Income - Daily PutWrite ETF Innovator Gradient Tactical Rotation Strategy ETF Innovator IBD(R) 50 ETF Innovator IBD Breakout Opportunities ETF Innovator Index Autocallable Income Strategy ETF Innovator Laddered Allocation Buffer ETF Innovator Laddered Allocation Power Buffer ETF Innovator S&P Investment Grade Preferred ETF Investment Strategy Risk [Member] Derivatives Risk [Member] Distribution Tax Risk [Member] Cyber Security Risk [Member] Liquidity Risk [Member] Market Risk [Member] Portfolio Turnover Risk [Member] Risks Associated with ETFs [Member] Security Issuer Risk [Member] Tax Risk [Member] Valuation Risk [Member] Volatility Risk [Member] Deepwater Frontier Tech Index(1) (reflects no deduction for fees, expenses or taxes) Dow Jones Global Index (reflects no deduction for fees, expenses or taxes) NASDAQ-100 Total Return Index (reflects no deduction for fees, expenses or taxes) S&P 500 Total Return Index (reflects no deduction for fees, expenses, or taxes) S&P Global Broad Market Index – Total Return (reflects no deduction for fees, expenses or taxes) S&P 500® Total Return Index (reflects no deduction for fees, expenses or taxes) IBD® 50 Index (reflects no deduction for fees, expenses or taxes) IBD® Breakout Stocks Index (reflects no deduction for fees, expenses or taxes) MerQube U.S. Large Cap Equity Buffer Laddered Index (reflects no deduction for fees, expenses or taxes) FTSE Laddered Power Buffer Strategy Price Return Index (reflects no deduction for fees, expenses or taxes) S&P U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) S&P U.S. High Quality Preferred Stock Index (reflects no deduction for fees, expenses or taxes) S&P U.S. Preferred Stock Index (reflects no deduction for fees, expenses or taxes) S000093415 Member Investment Strategy Risk Member S000078008 Member index_ SP_ Global_ Broad_ Market_ Index_ Total_ Return_reflects_no_deduction_for_fees_expenses_or_taxes Member S000075196 Member index_ SP_ US_ High_ Quality_ Preferred_ Stock_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member C000201551 Member index_ SP_500_ Total_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes1 Member index_ IBD_50_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member C000230751 Member index_ Mer Qube_ US_ Large_ Cap_ Equity_ Buffer_ Laddered_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member C000234039 Member Portfolio Turnover Risk Member C000150102 Member index_ SP_ US_ Preferred_ Stock_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member S000093416 Member Derivatives Risk Member S000063057 Member Cyber Security Risk Member C000261671 Member index_ NASDAQ100_ Total_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member S000062244 Member S000073678 Member C000230750 Member C000249173 Member Tax Risk Member index_ Dow_ Jones_ Global_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member Distribution Tax Risk Member S000047761 Member index_ Deepwater_ Frontier_ Tech_ Index1_reflects_no_deduction_for_fees_expenses_or_taxes Member Liquidity Risk Member index_ SP_500_ Total_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes0 Member Market Risk Member S000073679 Member Security Issuer Risk Member S000084720 Member C000204535 Member Volatility Risk Member C000261672 Member Valuation Risk Member C000238738 Member index_ SP_ US_ Aggregate_ Bond_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member index_ FTSE_ Laddered_ Power_ Buffer_ Strategy_ Price_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member Risks Associated With ETFs Member index_ IBD_ Breakout_ Stocks_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member