INTANGIBLE ASSETS, NET - Summarized Intangible Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets, Net [Abstract]
Total intangible assets, net	$ 43,173	$ 46,229
Customer relationships
Finite-Lived Intangible Assets, Net [Abstract]
Customer relationships	61,000	95,513
Less: Accumulated amortization	(17,827)	(49,284)
Total intangible assets, net		46,229
Jefferson Terminal \| Customer relationships
Finite-Lived Intangible Assets, Net [Abstract]
Customer relationships		35,513
Less: Accumulated amortization		(35,513)
Total intangible assets, net		0
Railroad
Finite-Lived Intangible Assets, Net [Abstract]
Total intangible assets, net	42,229
Railroad \| Customer relationships
Finite-Lived Intangible Assets, Net [Abstract]
Customer relationships	60,000	60,000
Less: Accumulated amortization	(17,771)	(13,771)
Total intangible assets, net		$ 46,229
Long Ridge
Finite-Lived Intangible Assets, Net [Abstract]
Total intangible assets, net	944
Long Ridge \| Customer relationships
Finite-Lived Intangible Assets, Net [Abstract]
Customer relationships	1,000
Less: Accumulated amortization	$ (56)

FTAI Infrastructure Inc. 10-K