v3.25.2
Cover
Oct. 01, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Oct. 01, 2025
Entity File Number 001-42199
Entity Registrant Name ADAGIO MEDICAL HOLDINGS, INC.
Entity Central Index Key 0002006986
Entity Tax Identification Number 99-1151466
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 26051 Merit Circle
Entity Address, Address Line Two Suite 102
Entity Address, City or Town Laguna Hills
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92653
City Area Code 949
Local Phone Number 348-1188
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, par value $0.0001 per share
Trading Symbol ADGM
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false