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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Dec. 30, 2024 aircraft | Jun. 30, 2025 USD ($) aircraft $ / shares | Jun. 30, 2024 USD ($) $ / shares | Jun. 30, 2025 USD ($) aircraft disposal_group $ / shares | Jun. 30, 2024 USD ($) $ / shares | Dec. 31, 2024 USD ($)
Accounting Policies [Line Items] |  |  |  |  |  |
Number of aircrafts committed to acquire | 45 |  |  |  |  |
Remaining number of aircrafts committed to be sold |  |  |  | 8 |  |
Insurance recoveries | $ |  | $ 24,200 |  | $ 54,325 | $ 0 |
Provision for doubtful accounts | $ |  | 28,400 |  | 28,400 |  | $ 74,900
Bad debt expense | $ |  | $ 0 | $ 100 | $ 200 | $ 100 |
Number of seed assets sold |  |  |  | 45 |  |
Number of disposal groups | disposal_group |  |  |  | 1 |  |
Common stock dividends declared (in dollars per share) | $ / shares |  | $ 0.30 | $ 0.60 | $ 0.30 | $ 0.60 |
Series C Preferred Stock |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |
Preferred stock dividends declared (in dollars per share) | $ / shares |  | 0.52 |  |  |  |
Series D Preferred Stock |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |
Preferred stock dividends declared (in dollars per share) | $ / shares |  | $ 0.59 |  |  |  |
Equity Method Investee |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |
Number of aircrafts sold |  | 33 |  | 37 |  |
Gain on sale to the 2025 Partnership | $ |  | $ 34,604 | $ 0 | $ 45,474 | $ 0 |
Held for sale | Equity Method Investee |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |
Number of seed assets expected to be sold |  | 8 |  | 8 |  |
Customer Concentration Risk | Sales Revenue, Segment | Customer One | Aerospace Products |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |
Concentration risk (as a percent) |  | 11.00% | 19.00% | 14.00% | 13.00% |
Customer Concentration Risk | Accounts Receivable | Customer One | Aerospace Products |  |  |  |  |  |
Accounting Policies [Line Items] |  |  |  |  |  |
Concentration risk (as a percent) |  |  |  | 39.00% |  |

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