Cover page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Mar. 02, 2023	Aug. 01, 2022
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-37386
Entity Registrant Name	FTAI INFRASTRUCTURE INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	87-4407005
Entity Address, Address Line One	1345 Avenue of the Americas, 45th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10105
City Area Code	212
Local Phone Number	798-6100
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	FIP
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 324.3
Entity Common Stock, Shares Outstanding		99,445,074
Documents Incorporated by Reference	Portions of the registrant's definitive proxy statement for the registrant's 2023 annual meeting, to be filed within 120 days after the close of the registrant's fiscal year, are incorporated by reference into Part III of this Annual Report on Form 10-K.
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Central Index Key	0001899883
Auditor Firm ID	42
Auditor Name	Ernst & Young LLP
Auditor Location	New York, New York