Reportable Segments (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) segment	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Reportable Segments
Number of reportable segments | segment				2
Number of operating segments | segment				2
Revenue:
Interest revenue		$ 3,412	$ 2,106	$ 7,965	$ 6,409
Gain on sale of leased equipment		9,519	773	33,148	5,101
Total revenue		146,223	105,745	416,426	304,275
Expenses:
Depreciation and amortization expense		23,650	23,088	68,303	68,131
Cost of spare parts and equipment sales		8,861	2,024	17,003	9,581
Cost of maintenance services		6,402	5,580	17,647	14,351
Write-down of equipment		605	719	866	2,390
General and administrative		40,037	26,545	104,305	86,103
Technical expense		5,151	8,739	17,924	19,755
Interest expense		27,813	19,052	75,378	56,526
Total finance costs		27,813	19,052	75,378	56,526
Total expenses		112,519	85,747	301,426	256,837
Income (loss) from operations		33,704	19,998	115,000	47,438
Total assets	[1]	3,043,593		3,043,593		$ 2,652,344
Operating Segments | Leasing and  Related Operations
Revenue:
Interest revenue		3,412	2,106	7,965	6,409
Gain on sale of leased equipment		9,519	773	33,148	5,101
Total revenue		136,465	102,433	397,204	291,447
Expenses:
Depreciation and amortization expense		23,632	23,069	68,248	68,058
Cost of spare parts and equipment sales		157	3	188	53
Cost of maintenance services		6,402	5,580	17,647	14,351
Write-down of equipment		605	719	866	2,390
General and administrative		38,859	25,669	101,079	83,165
Technical expense		5,151	8,739	17,924	19,755
Interest expense		27,813	19,052	75,378	56,526
Total finance costs		27,813	19,052	75,378	56,526
Total expenses		102,619	82,831	281,330	244,298
Income (loss) from operations		33,846	19,602	115,874	47,149
Total assets		2,961,080		2,961,080		2,602,907
Operating Segments | Spare Parts Sales
Revenue:
Interest revenue		0	0	0	0
Gain on sale of leased equipment		0	0	0	0
Total revenue		9,844	3,367	19,405	12,987
Expenses:
Depreciation and amortization expense		18	19	55	73
Cost of spare parts and equipment sales		8,704	2,021	16,815	9,528
Cost of maintenance services		0	0	0	0
Write-down of equipment		0	0	0	0
General and administrative		1,178	876	3,226	2,938
Technical expense		0	0	0	0
Interest expense		0	0	0	0
Total finance costs		0	0	0	0
Total expenses		9,900	2,916	20,096	12,539
Income (loss) from operations		(56)	451	(691)	448
Total assets		82,513		82,513		49,437
Eliminations
Revenue:
Interest revenue		0	0	0	0
Gain on sale of leased equipment		0	0	0	0
Total revenue		(86)	(55)	(183)	(159)
Expenses:
Depreciation and amortization expense		0	0	0	0
Cost of spare parts and equipment sales		0	0	0	0
Cost of maintenance services		0	0	0	0
Write-down of equipment		0	0	0	0
General and administrative		0	0	0	0
Technical expense		0	0	0	0
Interest expense		0	0	0	0
Total finance costs		0	0	0	0
Total expenses		0	0	0	0
Income (loss) from operations		(86)	(55)	(183)	(159)
Total assets		0		0		$ 0
Lease rent revenue
Revenue:
Lease rent and maintenance reserve revenue		64,905	53,573	173,652	161,209
Lease rent revenue | Operating Segments | Leasing and  Related Operations
Revenue:
Lease rent and maintenance reserve revenue		64,905	53,573	173,652	161,209
Lease rent revenue | Operating Segments | Spare Parts Sales
Revenue:
Lease rent and maintenance reserve revenue		0	0	0	0
Lease rent revenue | Eliminations
Revenue:
Lease rent and maintenance reserve revenue		0	0	0	0
Maintenance reserve revenue
Revenue:
Lease rent and maintenance reserve revenue		49,760	37,696	156,527	96,609
Maintenance reserve revenue | Operating Segments | Leasing and  Related Operations
Revenue:
Lease rent and maintenance reserve revenue		49,760	37,696	156,527	96,609
Maintenance reserve revenue | Operating Segments | Spare Parts Sales
Revenue:
Lease rent and maintenance reserve revenue		0	0	0	0
Maintenance reserve revenue | Eliminations
Revenue:
Lease rent and maintenance reserve revenue		0	0	0	0
Spare parts and equipment sales
Revenue:
Other sales and revenue		10,863	3,359	20,337	12,961
Spare parts and equipment sales | Operating Segments | Leasing and  Related Operations
Revenue:
Other sales and revenue		1,227	111	1,520	420
Spare parts and equipment sales | Operating Segments | Spare Parts Sales
Revenue:
Other sales and revenue		9,636	3,248	18,817	12,541
Spare parts and equipment sales | Eliminations
Revenue:
Other sales and revenue		0	0	0	0
Maintenance Services
Revenue:
Other sales and revenue		5,948	6,199	17,956	16,707
Maintenance Services | Operating Segments | Leasing and  Related Operations
Revenue:
Other sales and revenue		5,948	6,199	17,956	16,707
Maintenance Services | Operating Segments | Spare Parts Sales
Revenue:
Other sales and revenue		0	0	0	0
Maintenance Services | Eliminations
Revenue:
Other sales and revenue		0	0	0	0
Other revenue
Revenue:
Other sales and revenue		1,816	2,039	6,841	5,279
Other revenue | Operating Segments | Leasing and  Related Operations
Revenue:
Other sales and revenue		1,694	1,975	6,436	4,992
Other revenue | Operating Segments | Spare Parts Sales
Revenue:
Other sales and revenue		208	119	588	446
Other revenue | Eliminations
Revenue:
Other sales and revenue		$ (86)	$ (55)	$ (183)	$ (159)

[1] Total assets at September 30, 2024 and December 31, 2023, include the following assets of variable interest entities (“VIEs”) that can only be used to settle the liabilities of the VIEs: Restricted cash $99,333 and $160,958; Equipment $1,721,262 and $1,518,050; Maintenance Rights $13,080 and $7,806; Notes receivable $130,356 and $91,960; Investments in sales-type leases $19,004 and $3,564; and Other assets $15,335 and $13,339 (each respectively).