Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenue from Contracts with Customers
Interest income	$ 8,721	$ 7,579
Gain on sale of leased equipment	10,581	3,133
Gain on sale of financial assets	0	3,116
Total revenue	418,555	311,927
Lease rent revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	213,138	162,571
Maintenance reserve revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	133,668	83,424
Spare parts and equipment sales
Revenue from Contracts with Customers
Other sales and revenues	20,359	27,009
Managed services
Revenue from Contracts with Customers
Other sales and revenues	29,246	23,613
Other revenue
Revenue from Contracts with Customers
Other sales and revenues	2,842	1,482
Operating Segments | Leasing and  Related Operations
Revenue from Contracts with Customers
Interest income	8,721	7,579
Gain on sale of leased equipment	10,581	3,133
Gain on sale of financial assets	0	3,116
Total revenue	398,194	286,025
Operating Segments | Leasing and  Related Operations | Lease rent revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	213,138	162,571
Operating Segments | Leasing and  Related Operations | Maintenance reserve revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	133,668	83,424
Operating Segments | Leasing and  Related Operations | Spare parts and equipment sales
Revenue from Contracts with Customers
Other sales and revenues	476	1,595
Operating Segments | Leasing and  Related Operations | Managed services
Revenue from Contracts with Customers
Other sales and revenues	29,246	23,613
Operating Segments | Leasing and  Related Operations | Other revenue
Revenue from Contracts with Customers
Other sales and revenues	2,364	994
Operating Segments | Spare Parts Sales
Revenue from Contracts with Customers
Interest income	0	0
Gain on sale of leased equipment	0	0
Gain on sale of financial assets	0	0
Total revenue	20,572	26,087
Operating Segments | Spare Parts Sales | Lease rent revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	0	0
Operating Segments | Spare Parts Sales | Maintenance reserve revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	0	0
Operating Segments | Spare Parts Sales | Spare parts and equipment sales
Revenue from Contracts with Customers
Other sales and revenues	19,883	25,414
Operating Segments | Spare Parts Sales | Managed services
Revenue from Contracts with Customers
Other sales and revenues	0	0
Operating Segments | Spare Parts Sales | Other revenue
Revenue from Contracts with Customers
Other sales and revenues	689	673
Eliminations
Revenue from Contracts with Customers
Interest income	0	0
Gain on sale of leased equipment	0	0
Gain on sale of financial assets	0	0
Total revenue	(211)	(185)
Eliminations | Lease rent revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	0	0
Eliminations | Maintenance reserve revenue
Revenue from Contracts with Customers
Lease rent and maintenance reserve revenue	0	0
Eliminations | Spare parts and equipment sales
Revenue from Contracts with Customers
Other sales and revenues	0	0
Eliminations | Managed services
Revenue from Contracts with Customers
Other sales and revenues	0	0
Eliminations | Other revenue
Revenue from Contracts with Customers
Other sales and revenues	$ (211)	$ (185)