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INVESTMENTS - Ownership Carrying Values (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Nov. 17, 2023	Nov. 30, 2021	Dec. 31, 2012
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 68,085	$ 72,701
Intermodal Finance I, Ltd.
Schedule of Equity Method Investments [Line Items]
Ownership Percentage	51.00%				51.00%
Carrying Value	$ 0	0
Long Ridge Energy & Power LLC
Schedule of Equity Method Investments [Line Items]
Ownership Percentage	50.10%
Carrying Value	$ 0	0
Long Ridge Energy & Power LLC | Other Liabilities
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ (54,800)	(29,300)
GM-FTAI Holdco LLC
Schedule of Equity Method Investments [Line Items]
Ownership Percentage	27.00%
Carrying Value	$ 51,255	55,740
Clean Planet Energy USA LLC
Schedule of Equity Method Investments [Line Items]
Ownership Percentage	50.00%			50.00%
Carrying Value	$ 10,117	10,136
Long Ridge West Virginia LLC
Schedule of Equity Method Investments [Line Items]
Ownership Percentage	50.10%
Carrying Value	$ 6,713	$ 6,825	$ 7,200

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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-Topic 323
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+ References

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