Innovator Emerging Markets Power Buffer ETF - January Innovator Emerging Markets Power Buffer ETF - April Innovator Emerging Markets Power Buffer ETF - July Innovator Emerging Markets Power Buffer ETF - October Innovator Growth-100 Power Buffer ETF - January Innovator Growth-100 Power Buffer ETF - February Innovator Growth-100 Power Buffer ETF - March Innovator Growth-100 Power Buffer ETF - April Innovator Growth-100 Power Buffer ETF - May Innovator Growth-100 Power Buffer ETF - June Innovator Growth-100 Power Buffer ETF - July Innovator Growth-100 Power Buffer ETF - August Innovator Growth-100 Power Buffer ETF - September Innovator Growth-100 Power Buffer ETF - October Innovator Growth-100 Power Buffer ETF - November Innovator Growth-100 Power Buffer ETF - December Innovator International Developed Power Buffer ETF - January Innovator International Developed Power Buffer ETF - February Innovator International Developed Power Buffer ETF - March Innovator International Developed Power Buffer ETF - April Innovator International Developed Power Buffer ETF - May Innovator International Developed Power Buffer ETF - June Innovator International Developed Power Buffer ETF - July Innovator International Developed Power Buffer ETF - August Innovator International Developed Power Buffer ETF - September Innovator International Developed Power Buffer ETF - October Innovator International Developed Power Buffer ETF - November Innovator International Developed Power Buffer ETF - December Innovator U.S. Small Cap Power Buffer ETF - January Innovator U.S. Small Cap Power Buffer ETF - February Innovator U.S. Small Cap Power Buffer ETF - March Innovator U.S. Small Cap Power Buffer ETF - April Innovator U.S. Small Cap Power Buffer ETF - May Innovator U.S. Small Cap Power Buffer ETF - June Innovator U.S. Small Cap Power Buffer ETF - July Innovator U.S. Small Cap Power Buffer ETF - August Innovator U.S. Small Cap Power Buffer ETF - September Innovator U.S. Small Cap Power Buffer ETF - October Innovator U.S. Small Cap Power Buffer ETF - November Innovator U.S. Small Cap Power Buffer ETF - December Innovator Emerging Markets Power Buffer ETF - January Innovator Emerging Markets Power Buffer ETF - April Innovator Emerging Markets Power Buffer ETF - July Innovator Emerging Markets Power Buffer ETF - October Innovator Growth-100 Power Buffer ETF - January Innovator Growth-100 Power Buffer ETF - February Innovator Growth-100 Power Buffer ETF - March Innovator Growth-100 Power Buffer ETF - April Innovator Growth-100 Power Buffer ETF - May Innovator Growth-100 Power Buffer ETF - June Innovator Growth-100 Power Buffer ETF - July Innovator Growth-100 Power Buffer ETF - August Innovator Growth-100 Power Buffer ETF - September Innovator Growth-100 Power Buffer ETF - October Innovator Growth-100 Power Buffer ETF - November Innovator Growth-100 Power Buffer ETF - December Innovator International Developed Power Buffer ETF - January Innovator International Developed Power Buffer ETF - February Innovator International Developed Power Buffer ETF - March Innovator International Developed Power Buffer ETF - April Innovator International Developed Power Buffer ETF - May Innovator International Developed Power Buffer ETF - June Innovator International Developed Power Buffer ETF - July Innovator International Developed Power Buffer ETF - August Innovator International Developed Power Buffer ETF - September Innovator International Developed Power Buffer ETF - October Innovator International Developed Power Buffer ETF - November Innovator International Developed Power Buffer ETF - December Innovator U.S. Small Cap Power Buffer ETF - January Innovator U.S. Small Cap Power Buffer ETF - February Innovator U.S. Small Cap Power Buffer ETF - March Innovator U.S. Small Cap Power Buffer ETF - April Innovator U.S. Small Cap Power Buffer ETF - May Innovator U.S. Small Cap Power Buffer ETF - June Innovator U.S. Small Cap Power Buffer ETF - July Innovator U.S. Small Cap Power Buffer ETF - August Innovator U.S. Small Cap Power Buffer ETF - September Innovator U.S. Small Cap Power Buffer ETF - October Innovator U.S. Small Cap Power Buffer ETF - November Innovator U.S. Small Cap Power Buffer ETF - December Defined Outcome Strategy Risk [Member] Derivatives Risk [Member] Underlying ETF Risk [Member] Concentration Risk [Member] Cyber Security Risk [Member] Market Risk [Member] Risks Associated with ETFs [Member] Tax Risk [Member] Valuation Risk [Member] MSCI Emerging Markets Total Return Index (reflects no deduction for fees, expenses or taxes) MSCI Emerging Markets Price Return Index (reflects no deduction for fees, expenses or taxes) Nasdaq-100 Total Return Index (reflects no deduction for fees, expenses or taxes) Nasdaq-100 Price Return Index (reflects no deduction for fees, expenses or taxes) MSCI EAFE Total Return Index (reflects no deduction for fees, expenses or taxes) MSCI EAFE Price Return Index (reflects no deduction for fees, expenses or taxes) Russell 2000 Total Return Index (reflects no deduction for fees, expenses or taxes) Russell 2000 Price Return Index (reflects no deduction for fees, expenses or taxes) S000085968 Member C000244695 Member S000068279 Member Defined Outcome Strategy Risk Member S000085568 Member S000065320 Member S000068868 Member index_ MSCI_ Emerging_ Markets_ Price_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member C000244692 Member S000066605 Member C000250865 Member S000085962 Member S000085970 Member Derivatives Risk Member S000081717 Member C000214792 Member C000251362 Member C000218592 Member S000081714 Member C000207071 Member C000251377 Member S000085953 Member S000066606 Member C000244693 Member index_ MSCI_ Emerging_ Markets_ Total_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member C000211381 Member C000251384 Member S000068284 Member C000250867 Member C000244687 Member index_ Russell_2000_ Total_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member C000211375 Member C000216543 Member S000085977 Member C000251368 Member Concentration Risk Member S000081715 Member S000085972 Member Market Risk Member S000085949 Member C000251360 Member C000211387 Member C000251379 Member S000085960 Member C000214791 Member S000085966 Member C000244688 Member C000251372 Member Risks Associated With ETFs Member C000218590 Member S000064004 Member C000251366 Member S000064007 Member index_ Nasdaq100_ Price_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member S000081716 Member S000085951 Member index_ Russell_2000_ Price_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member S000065317 Member S000067348 Member S000085964 Member S000085984 Member S000081710 Member index_ MSCI_ EAFE_ Price_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member S000068282 Member C000251353 Member C000244694 Member C000251370 Member S000085979 Member C000244689 Member C000220092 Member Cyber Security Risk Member C000251349 Member index_ MSCI_ EAFE_ Total_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member S000081709 Member C000211378 Member S000081711 Member S000068280 Member S000085570 Member S000068870 Member C000218587 Member C000207074 Member C000251351 Member C000244690 Member Tax Risk Member index_ Nasdaq100_ Total_ Return_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member Underlying ETFRisk Member C000251358 Member C000220094 Member S000065323 Member S000081712 Member S000064001 Member Valuation Risk Member C000218588 Member C000207068 Member C000251364 Member S000085958 Member S000065329 Member