Document and Entity Information	Total
Prospectus:
Document Type	485BPOS
Document Period End Date	Apr. 30, 2020
Entity Registrant Name	IndexIQ Active ETF Trust
Entity Central Index Key	0001426439
Entity Inv Company Type	N-1A
Amendment Flag	false
Document Creation Date	Aug. 28, 2020
Document Effective Date	Aug. 28, 2020
Prospectus Date	Aug. 28, 2020
IQ MacKay Municipal Insured ETF \| IQ MacKay Municipal Insured ETF
Prospectus:
Trading Symbol	MMIN
IQ MacKay Municipal Short Duration ETF \| IQ MacKay Municipal Short Duration ETF
Prospectus:
Trading Symbol	MMSD
IQ MacKay Municipal Intermediate ETF \| IQ MacKay Municipal Intermediate ETF
Prospectus:
Trading Symbol	MMIT
IQ Ultra Short Duration ETF \| IQ Ultra Short Duration ETF
Prospectus:
Trading Symbol	ULTR

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation 12B
-Number 240
-Section 12
-Subsection b-2

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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