SEGMENT INFORMATION - Summary of Geographic Sources of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Revenues	$ 465,794	$ 291,096	$ 1,236,082	$ 858,159
Corporate and Other
Segment Reporting Information [Line Items]
Revenues	10,059	11,033	26,343	33,837
Africa
Segment Reporting Information [Line Items]
Revenues	1,266	154	11,660	1,029
Africa | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Asia
Segment Reporting Information [Line Items]
Revenues	122,232	60,252	254,307	117,859
Asia | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	10,059	11,033	26,343	33,837
Europe
Segment Reporting Information [Line Items]
Revenues	140,886	91,640	492,119	273,045
Europe | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
North America
Segment Reporting Information [Line Items]
Revenues	184,230	121,582	418,381	424,128
North America | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
South America
Segment Reporting Information [Line Items]
Revenues	17,180	17,468	59,615	42,098
South America | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0
United States | Revenue Benchmark | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage	35.00%	35.00%	32.00%	46.00%
Ireland | Revenue Benchmark | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Concentration risk, percentage	15.00%	10.00%	18.00%
Aviation Leasing | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 152,266	$ 161,388	$ 472,013	$ 527,809
Aviation Leasing | Africa | Operating Segments
Segment Reporting Information [Line Items]
Revenues	1,266	154	3,389	154
Aviation Leasing | Asia | Operating Segments
Segment Reporting Information [Line Items]
Revenues	46,459	48,267	105,220	81,285
Aviation Leasing | Europe | Operating Segments
Segment Reporting Information [Line Items]
Revenues	56,750	56,679	235,367	188,498
Aviation Leasing | North America | Operating Segments
Segment Reporting Information [Line Items]
Revenues	34,700	44,369	81,709	225,769
Aviation Leasing | South America | Operating Segments
Segment Reporting Information [Line Items]
Revenues	13,091	11,919	46,328	32,103
Aerospace Products | Operating Segments
Segment Reporting Information [Line Items]
Revenues	303,469	118,675	737,726	296,513
Aerospace Products | Africa | Operating Segments
Segment Reporting Information [Line Items]
Revenues	0	0	8,271	875
Aerospace Products | Asia | Operating Segments
Segment Reporting Information [Line Items]
Revenues	65,714	952	122,744	2,737
Aerospace Products | Europe | Operating Segments
Segment Reporting Information [Line Items]
Revenues	84,136	34,961	256,752	84,547
Aerospace Products | North America | Operating Segments
Segment Reporting Information [Line Items]
Revenues	149,530	77,213	336,672	198,359
Aerospace Products | South America | Operating Segments
Segment Reporting Information [Line Items]
Revenues	$ 4,089	$ 5,549	$ 13,287	$ 9,995