v3.26.3
Document And Entity Information
Sep. 30, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 30, 2026
Entity Registrant Name Macquarie Energy Transition Infrastructure Fund, L.P.
Entity Central Index Key 0002062936
Entity Emerging Growth Company true
Entity File Number 000-56855
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 33-3570047
Entity Address, Address Line One 660 Fifth Avenue
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10103
City Area Code (212)
Local Phone Number 231-1000
Entity Information, Former Legal or Registered Name Not Applicable
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Ex Transition Period false
Title of 12(b) Security None
No Trading Symbol Flag true
Security Exchange Name NONE