Reportable Segments - Schedule of the Reportable Segments (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Revenue:
Interest revenue		$ 2,258	$ 1,865	$ 4,304	$ 3,978
Gain on sale of leased equipment		4,461	498	4,328	2,796
Gain on sale of financial assets		0	3,116	0	3,116
Total revenue		108,996	78,075	198,531	146,892
Expenses:
Depreciation and amortization expense		22,494	21,612	45,043	43,421
Cost of spare parts and equipment sales		3,058	7,014	7,557	11,876
Write-down of equipment		1,671	78	1,671	21,195
General and administrative		38,327	20,427	71,598	44,032
Technical expense		4,919	3,436	7,748	9,082
Interest expense		19,085	16,023	37,474	32,906
Total net finance costs		19,085	16,023	37,474	32,906
Total expenses		89,554	68,590	171,091	162,512
Income (Loss) from operations		19,442	9,485	27,440	(15,620)
Total assets	[1]	2,603,956		2,603,956		$ 2,575,217
Operating Segments | Leasing and  Related Operations
Revenue:
Interest revenue		2,258	1,865	4,304	3,978
Gain on sale of leased equipment		4,461	498	4,328	2,796
Gain on sale of financial assets			3,116		3,116
Total revenue		104,541	71,303	189,015	133,574
Expenses:
Depreciation and amortization expense		22,472	21,585	44,989	43,367
Cost of spare parts and equipment sales		43	4	51	10
Write-down of equipment			78	1,671	21,195
General and administrative		37,306	19,581	69,536	42,387
Technical expense		4,919	3,436	7,748	9,082
Interest expense		19,085	16,023	37,474	32,906
Total net finance costs		19,085	16,023	37,474	32,906
Total expenses		85,496	60,707	161,469	148,947
Income (Loss) from operations		19,045	10,596	27,546	(15,373)
Total assets		2,554,237		2,554,237		2,530,130
Operating Segments | Spare Parts Sales
Revenue:
Interest revenue		0	0	0	0
Gain on sale of leased equipment		0	0	0	0
Gain on sale of financial assets			0		0
Total revenue		4,524	6,801	9,619	13,405
Expenses:
Depreciation and amortization expense		22	27	54	54
Cost of spare parts and equipment sales		3,015	7,010	7,506	11,866
Write-down of equipment		0	0	0	0
General and administrative		1,021	846	2,062	1,645
Technical expense		0	0	0	0
Interest expense		0	0	0	0
Total net finance costs		0	0	0	0
Total expenses		4,058	7,883	9,622	13,565
Income (Loss) from operations		466	(1,082)	(3)	(160)
Total assets		49,719		49,719		45,087
Eliminations
Revenue:
Interest revenue		0	0	0	0
Gain on sale of leased equipment		0	0	0	0
Gain on sale of financial assets			0		0
Total revenue		(69)	(29)	(103)	(87)
Expenses:
Depreciation and amortization expense		0	0	0	0
Cost of spare parts and equipment sales		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 net finance costs		0	0	0	0
Total expenses		0	0	0	0
Income (Loss) from operations		(69)	(29)	(103)	(87)
Total assets		0		0		$ 0
Lease rent revenue
Revenue:
Lease rent and maintenance reserve revenue		54,416	36,704	107,636	74,829
Lease rent revenue | Operating Segments | Leasing and  Related Operations
Revenue:
Lease rent and maintenance reserve revenue		54,416	36,704	107,636	74,829
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		35,415	24,245	58,913	39,079
Maintenance reserve revenue | Operating Segments | Leasing and  Related Operations
Revenue:
Lease rent and maintenance reserve revenue		35,415	24,245	58,913	39,079
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		4,550	6,792	9,602	13,422
Spare parts and equipment sales | Operating Segments | Leasing and  Related Operations
Revenue:
Other sales and revenue		254	49	309	251
Spare parts and equipment sales | Operating Segments | Spare Parts Sales
Revenue:
Other sales and revenue		4,296	6,743	9,293	13,171
Spare parts and equipment sales | Eliminations
Revenue:
Other sales and revenue		0	0	0	0
Other revenue
Revenue:
Other sales and revenue		7,896	4,855	13,748	9,672
Other revenue | Operating Segments | Leasing and  Related Operations
Revenue:
Other sales and revenue		7,737	4,826	13,525	9,525
Other revenue | Operating Segments | Spare Parts Sales
Revenue:
Other sales and revenue		228	58	326	234
Other revenue | Eliminations
Revenue:
Other sales and revenue		$ (69)	$ (29)	$ (103)	$ (87)

[1] Total assets at June 30, 2023 and December 31, 2022, include the following assets of variable interest entities (“VIEs”) that can only be used to settle the liabilities of the VIEs: Restricted cash $49,094 and $76,870; Equipment $1,179,739 and $1,167,970; Maintenance Rights $6,822 and $5,433; Notes receivable $78,796 and $80,220; and Other assets $6,902 and $6,470 (each respectively).