Reportable Segments (Details) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Reportable Segments
Number of reportable segments | segment				2
Number of operating segments | segment				2
Revenue:
Interest revenue		$ 2,284	$ 2,258	$ 4,553	$ 4,304
Gain on sale of leased equipment		14,428	4,461	23,629	4,328
Total revenue		151,120	108,996	270,203	198,531
Expenses:
Depreciation and amortization expense		22,167	22,494	44,653	45,043
Cost of spare parts and equipment sales		5,437	3,058	8,142	7,557
Cost of maintenance services		5,671	4,843	11,245	8,770
Write-down of equipment		0	1,671	261	1,671
General and administrative		34,687	31,727	64,268	59,558
Technical expense		4,518	6,676	12,773	11,018
Interest expense		24,562	19,085	47,565	37,474
Total finance costs		24,562	19,085	47,565	37,474
Total expenses		97,042	89,554	188,907	171,091
Income (loss) from operations		54,078	19,442	81,296	27,440
Total assets	[1]	2,921,656		2,921,656		$ 2,652,344
Operating Segments | Leasing and  Related Operations
Revenue:
Interest revenue		2,284	2,258	4,553	4,304
Gain on sale of leased equipment		14,428	4,461	23,629	4,328
Total revenue		145,063	104,541	260,739	189,015
Expenses:
Depreciation and amortization expense		22,148	22,472	44,616	44,989
Cost of spare parts and equipment sales		21	43	30	51
Cost of maintenance services		5,671	4,843	11,245	8,770
Write-down of equipment			1,671	261	1,671
General and administrative		34,035	30,706	62,221	57,496
Technical expense		4,518	6,676	12,773	11,018
Interest expense		24,562	19,085	47,565	37,474
Total finance costs		24,562	19,085	47,565	37,474
Total expenses		90,955	85,496	178,711	161,469
Income (loss) from operations		54,108	19,045	82,028	27,546
Total assets		2,836,303		2,836,303		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		6,116	4,524	9,561	9,619
Expenses:
Depreciation and amortization expense		19	22	37	54
Cost of spare parts and equipment sales		5,416	3,015	8,112	7,506
Cost of maintenance services		0	0	0	0
Write-down of equipment			0	0	0
General and administrative		652	1,021	2,047	2,062
Technical expense		0	0	0	0
Interest expense		0	0	0	0
Total finance costs		0	0	0	0
Total expenses		6,087	4,058	10,196	9,622
Income (loss) from operations		29	466	(635)	(3)
Total assets		85,353		85,353		49,437
Eliminations
Revenue:
Interest revenue		0	0	0	0
Gain on sale of leased equipment		0	0	0	0
Total revenue		(59)	(69)	(97)	(103)
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
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		(59)	(69)	(97)	(103)
Total assets		0		0		$ 0
Lease rent revenue
Revenue:
Lease rent and maintenance reserve revenue		55,866	54,416	108,747	107,636
Lease rent revenue | Operating Segments | Leasing and  Related Operations
Revenue:
Lease rent and maintenance reserve revenue		55,866	54,416	108,747	107,636
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		62,897	35,415	106,767	58,913
Maintenance reserve revenue | Operating Segments | Leasing and  Related Operations
Revenue:
Lease rent and maintenance reserve revenue		62,897	35,415	106,767	58,913
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		6,186	4,550	9,474	9,602
Spare parts and equipment sales | Operating Segments | Leasing and  Related Operations
Revenue:
Other sales and revenue		209	254	293	309
Spare parts and equipment sales | Operating Segments | Spare Parts Sales
Revenue:
Other sales and revenue		5,977	4,296	9,181	9,293
Spare parts and equipment sales | Eliminations
Revenue:
Other sales and revenue		0	0	0	0
Maintenance Services
Revenue:
Other sales and revenue		6,781	5,849	12,008	10,508
Maintenance Services | Operating Segments | Leasing and  Related Operations
Revenue:
Other sales and revenue		6,781	5,849	12,008	10,508
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		2,678	2,047	5,025	3,240
Other revenue | Operating Segments | Leasing and  Related Operations
Revenue:
Other sales and revenue		2,598	1,888	4,742	3,017
Other revenue | Operating Segments | Spare Parts Sales
Revenue:
Other sales and revenue		139	228	380	326
Other revenue | Eliminations
Revenue:
Other sales and revenue		$ (59)	$ (69)	$ (97)	$ (103)

[1] Total assets at June 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 $142,869 and $160,958; Equipment $1,663,580 and $1,518,050; Maintenance Rights $6,814 and $7,806; Notes receivable $89,307 and $91,960; Investments in sales-type leases $1,641 and $3,564; and Other assets $11,339 and $13,339 (each respectively).