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STOCKHOLDERS' EQUITY - Earn-Out Shares and Unvested Founder Shares (Details) - shares | Dec. 22, 2020 | Feb. 08, 2020 | Mar. 31, 2021
--- | --- | --- | ---
Class of Stock [Line Items] |  |  |
Number of earn-out shares issuable |  | 1,855,634 |
Pre-closing holders of AerSale Aviation's common stock and the holders of In-the-Money SARs | Maximum | AerSale Aviation |  |  |
Class of Stock [Line Items] |  |  |
Number of earn-out shares issuable | 3,000,000 |  |
Pre-closing holders of AerSale Aviation's common stock |  |  |
Class of Stock [Line Items] |  |  |
Unvested Founder Shares, Number of Shares Deferred for Vesting |  |  | 700,000
Monocle's founder shareholders |  |  |
Class of Stock [Line Items] |  |  |
Number of earn-out shares issuable | 746,876 |  |

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