SEGMENT INFORMATION - Summary of Geographic Sources of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Total revenues	$ 953,085	$ 676,237	$ 1,783,782	$ 1,178,317
Africa
Segment Reporting [Line Items]
Total revenues	12,177	25,595	14,719	37,276
Asia
Segment Reporting [Line Items]
Total revenues	107,957	93,538	155,471	168,642
Europe
Segment Reporting [Line Items]
Total revenues	$ 284,248	$ 209,701	$ 532,558	$ 380,617
Ireland \| Revenue Benchmark \| Geographic Concentration Risk
Segment Reporting [Line Items]
Concentration risk (as a percent)	23.00%	14.00%	22.00%	16.00%
North America
Segment Reporting [Line Items]
Total revenues	$ 524,633	$ 329,641	$ 1,035,303	$ 555,336
United States \| Revenue Benchmark \| Geographic Concentration Risk
Segment Reporting [Line Items]
Concentration risk (as a percent)	48.00%	38.00%	40.00%	33.00%
Bermuda \| Revenue Benchmark \| Geographic Concentration Risk
Segment Reporting [Line Items]
Concentration risk (as a percent)			15.00%
South America
Segment Reporting [Line Items]
Total revenues	$ 24,070	$ 17,762	$ 45,731	$ 36,446
Operating Segments \| Aerospace Products
Segment Reporting [Line Items]
Total revenues	875,028	490,271	1,618,843	855,334
Operating Segments \| Aerospace Products \| Africa
Segment Reporting [Line Items]
Total revenues	9,500	17,000	9,500	26,482
Operating Segments \| Aerospace Products \| Asia
Segment Reporting [Line Items]
Total revenues	91,560	39,327	119,412	82,286
Operating Segments \| Aerospace Products \| Europe
Segment Reporting [Line Items]
Total revenues	255,838	126,444	473,867	223,316
Operating Segments \| Aerospace Products \| North America
Segment Reporting [Line Items]
Total revenues	502,979	298,039	985,976	505,471
Operating Segments \| Aerospace Products \| South America
Segment Reporting [Line Items]
Total revenues	15,151	9,461	30,088	17,779
Operating Segments \| Aviation Leasing
Segment Reporting [Line Items]
Total revenues	78,057	185,966	164,939	322,979
Operating Segments \| Aviation Leasing \| Africa
Segment Reporting [Line Items]
Total revenues	2,677	8,595	5,219	10,794
Operating Segments \| Aviation Leasing \| Asia
Segment Reporting [Line Items]
Total revenues	16,397	54,211	36,059	86,352
Operating Segments \| Aviation Leasing \| Europe
Segment Reporting [Line Items]
Total revenues	28,410	83,257	58,691	157,301
Operating Segments \| Aviation Leasing \| North America
Segment Reporting [Line Items]
Total revenues	21,654	31,602	49,327	49,865
Operating Segments \| Aviation Leasing \| South America
Segment Reporting [Line Items]
Total revenues	8,919	8,301	15,643	18,667
Corporate and Other
Segment Reporting [Line Items]
Total revenues	0	0	0	4
Corporate and Other \| Africa
Segment Reporting [Line Items]
Total revenues	0	0		0
Corporate and Other \| Asia
Segment Reporting [Line Items]
Total revenues	0	0		4
Corporate and Other \| Europe
Segment Reporting [Line Items]
Total revenues	0	0		0
Corporate and Other \| North America
Segment Reporting [Line Items]
Total revenues	0	0		0
Corporate and Other \| South America
Segment Reporting [Line Items]
Total revenues	$ 0	$ 0		$ 0