AIRCRAFT - Additional Information (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2025 USD ($) aircraft stockholder	Sep. 30, 2024 aircraft	Dec. 31, 2024 aircraft	Dec. 31, 2023 aircraft	Mar. 31, 2023 aircraft
AIRCRAFT - Owned and Leased
Number of aircraft	70	63	63	60
Expiry terms aircraft | stockholder	1
Retired aircraft | stockholder	1
Expiration period	4 years
Interest costs capitalized | $	$ 4,697
Additions	8	3
Number of aircraft of finance lease		2
Reclassifications	0	0
Number of aircraft owned and refinanced	37
Other Income
AIRCRAFT - Owned and Leased
Revenue from maintenance rights asset | $	$ 2,716
Revolving Credit Facility
AIRCRAFT - Owned and Leased
Maximum borrowing capacity | $	$ 75,000
Boeing 737-800
AIRCRAFT - Owned and Leased
Number of aircraft	65
B-737-900
AIRCRAFT - Owned and Leased
Number of aircraft	5
Passenger
AIRCRAFT - Owned and Leased
Number of aircraft	45	44	45	42
Number of aircrafts financed	31
Number of aircrafts unencumbered	1
Number of aircrafts to support revolving credit facility	5
Additions	0	2
Reclassifications	1	0
Passenger | Owned
AIRCRAFT - Owned and Leased
Number of aircraft	34	31	34	29
Additions	0	1
Reclassifications	1	1
Other Property | Subleased Aircraft
AIRCRAFT - Owned and Leased
Number of aircraft	2	2	2	1
Additions	0	1
Reclassifications	0	0
Other Property | Owned Aircraft Held for Operating Lease
AIRCRAFT - Owned and Leased
Number of aircraft		5		5
Number of aircraft with expiring lease term	3
Additions		0
Reclassifications		0
Property, Plant and Equipment, Number of Aircraft Leased	1
Other Property | Owned Aircraft Held for Operating Lease
AIRCRAFT - Owned and Leased
Number of aircraft	3		4		5
Additions	0
Reclassifications	(1)
Cargo | Aircrafts Operated For Amazon
AIRCRAFT - Owned and Leased
Number of aircraft	20	12	12	12
Number of additional aircrafts	8
Additions	8	0
Reclassifications	0	0