Revenue from Contracts with Customers - Schedule of Disaggregation of Revenue by Major Source (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue from Contracts with Customers
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
Lease rent revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	54,416	36,704	107,636	74,829
Maintenance reserve revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	35,415	24,245	58,913	39,079
Spare parts and equipment sales
Revenue from Contracts with Customers
Other sales and revenue	4,550	6,792	9,602	13,422
Managed services
Revenue from Contracts with Customers
Other sales and revenue	6,708	4,787	12,240	9,431
Other revenue
Revenue from Contracts with Customers
Other sales and revenue	1,188	68	1,508	241
Operating Segments | Leasing and Related Operations
Revenue from Contracts with Customers
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
Operating Segments | Leasing and Related Operations | Lease rent revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	54,416	36,704	107,636	74,829
Operating Segments | Leasing and Related Operations | Maintenance reserve revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	35,415	24,245	58,913	39,079
Operating Segments | Leasing and Related Operations | Spare parts and equipment sales
Revenue from Contracts with Customers
Other sales and revenue	254	49	309	251
Operating Segments | Leasing and Related Operations | Managed services
Revenue from Contracts with Customers
Other sales and revenue	6,708	4,787	12,240	9,431
Operating Segments | Leasing and Related Operations | Other revenue
Revenue from Contracts with Customers
Other sales and revenue	1,029	39	1,285	94
Operating Segments | Spare Parts Sales
Revenue from Contracts with Customers
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
Operating Segments | Spare Parts Sales | Lease rent revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	0	0	0	0
Operating Segments | Spare Parts Sales | Maintenance reserve revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	0	0	0	0
Operating Segments | Spare Parts Sales | Spare parts and equipment sales
Revenue from Contracts with Customers
Other sales and revenue	4,296	6,743	9,293	13,171
Operating Segments | Spare Parts Sales | Managed services
Revenue from Contracts with Customers
Other sales and revenue	0	0	0	0
Operating Segments | Spare Parts Sales | Other revenue
Revenue from Contracts with Customers
Other sales and revenue	228	58	326	234
Eliminations
Revenue from Contracts with Customers
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)
Eliminations | Lease rent revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	0	0	0	0
Eliminations | Maintenance reserve revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	0	0	0	0
Eliminations | Spare parts and equipment sales
Revenue from Contracts with Customers
Other sales and revenue	0	0	0	0
Eliminations | Managed services
Revenue from Contracts with Customers
Other sales and revenue	0	0	0	0
Eliminations | Other revenue
Revenue from Contracts with Customers
Other sales and revenue	$ (69)	$ (29)	$ (103)	$ (87)