DEPOSITS - Narrative (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024 USD ($) aircraft	Sep. 30, 2024 USD ($) aircraft	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) aircraft	May 31, 2023 USD ($) aircraft	May 05, 2023 USD ($) aircraft	Dec. 31, 2022 USD ($) aircraft
Deposit Assets [Line Items]
Customer deposits received	$ 11,774	$ 11,774		$ 2,830
Honda Aircraft
Deposit Assets [Line Items]
Decrease in accounts payable	$ 1,000	$ 1,000
Gulfstream G-280
Deposit Assets [Line Items]
Purchase obligation, number of aircrafts | aircraft	4	4		4			4
Purchase obligation	$ 23,250	$ 23,250		$ 79,000			$ 79,000
Number of assets to be delivered, year one | aircraft	3	3
Deposits assets	$ 48,000	$ 48,000		39,000
Prepayments made in the period		9,000	$ 18,000
Prepayments funded through the SAC Leasing G280 credit facility		9,000	15,000
Purchase obligation prepayments paid by the Company		0	$ 3,000
Payments for deposits	9,000
Customer deposits received	3,000	3,000
Deposits assets, non-refundable	$ 36,000	$ 36,000
Number of assets delivered | aircraft	1	1
HondaJet HA-420
Deposit Assets [Line Items]
Purchase obligation, number of aircrafts | aircraft					23	23
Purchase obligation					$ 161,100	$ 161,100
Deposits assets				$ 1,300
Number of assets delivered | aircraft	2	2