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Equity Method Investment, Increase (Decrease) In Ownership Percentage From Exchange Of Shares

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Equity Method Investment, Substantive Participation Rights Percentage

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Equity Method Investments, Note Receivable

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Equity Method Investments, Number Of Components Owned

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Investment in Promissory Notes

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Ownership Percentage Sold

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Exercise price per share or per unit of warrants or rights outstanding.

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

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Amount of investment in equity security without readily determinable fair value.

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Rate of interest paid in kind on investment.

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Number of shares of investment owned.

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Amount of long-term investments classified as other.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Amount of cash outflow to acquire investments classified as other.

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Number of common shares issuable upon conversion for each share of preferred stock to be converted.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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INVESTMENTS - Narrative (Details) $ / shares in Units, $ in Thousands		1 Months Ended				3 Months Ended		12 Months Ended
	Mar. 06, 2024 USD ($) $ / shares shares	Nov. 30, 2023 USD ($)	Nov. 30, 2021 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2019 USD ($)	Mar. 31, 2024 USD ($) shippingContainer $ / shares	Mar. 31, 2023 USD ($)	Dec. 31, 2012	Dec. 31, 2023 USD ($) $ / shares	Nov. 17, 2023 USD ($)	Oct. 01, 2022	Jun. 15, 2022
Schedule of Equity Method Investments [Line Items]
Existing substantive participation rights percentage								49.00%
Investment in promissory notes and loans						$ 0	$ 20,500
Carrying value						$ 68,085			$ 72,701
Exercise price (in dollars per share) \| $ / shares						$ 4.93			$ 4.93
Fair value of warrants						$ 21,000
Intermodal Finance I, Ltd.
Schedule of Equity Method Investments [Line Items]
Ownership Percentage						51.00%		51.00%
Number of components owned in portfolio \| shippingContainer						173
Carrying value						$ 0			$ 0
Long Ridge Energy & Power LLC
Schedule of Equity Method Investments [Line Items]
Ownership Percentage						50.10%
Ownership percentage sold					49.90%
Proceeds from sale of equity method investments					$ 150,000
Note receivable											13.00%
Note receivable						$ 73,300			71,000
Carrying value						$ 0			0
GM-FTAI Holdco LLC
Schedule of Equity Method Investments [Line Items]
Ownership Percentage						27.00%
Payments to acquire equity method investments				$ 52,500
Carrying value						$ 51,255			55,740
GM-FTAI Holdco LLC \| Class A
Schedule of Equity Method Investments [Line Items]
Ownership Percentage				1.00%
Increase in ownership percentage from exchange of share												20.00%
Increase in ownership percentage from debt termination												8.50%
GM-FTAI Holdco LLC \| Class A \| Gladieux Metals Recycling (“GMR”)
Schedule of Equity Method Investments [Line Items]
Ownership Percentage				1.00%
GM-FTAI Holdco LLC \| Class B
Schedule of Equity Method Investments [Line Items]
Ownership Percentage				50.00%
GM-FTAI Holdco LLC \| Class B \| Aleon Renewable Metals LLC (“Aleon”)
Schedule of Equity Method Investments [Line Items]
Ownership Percentage				50.00%
Gladieux Metals Recycling (“GMR”) \| GM-FTAI Holdco LLC
Schedule of Equity Method Investments [Line Items]
Ownership Percentage						100.00%
Aleon Renewable Metals LLC (“Aleon”) \| GM-FTAI Holdco LLC
Schedule of Equity Method Investments [Line Items]
Ownership Percentage						100.00%
Clean Planet Energy USA LLC
Schedule of Equity Method Investments [Line Items]
Ownership Percentage			50.00%			50.00%
Payments to acquire equity method investments			$ 1,000
Carrying value						$ 10,117			10,136
Long Ridge West Virginia LLC
Schedule of Equity Method Investments [Line Items]
Ownership Percentage						50.10%
Ownership percentage sold		49.90%
Proceeds from sale of equity method investments		$ 7,500
Carrying value						$ 6,713			$ 6,825	$ 7,200
E-Circuit Motors, Inc.
Schedule of Equity Method Investments [Line Items]
Payments to acquire other investments	$ 5,000
Number of common shares called by warrants (in shares) \| shares	166,667
Exercise price (in dollars per share) \| $ / shares	$ 0.01
Conversion ratio	1
Warrants, term	2 years
Equity securities, value	$ 2,500
Fair value of warrants	$ 2,500
Other investments						$ 5,000
E-Circuit Motors, Inc. \| Series D Preferred Stock
Schedule of Equity Method Investments [Line Items]
Equity securities (in shares) \| shares	166,667