Equipment under operating leases, net (Property on Operating Leases) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	$ 25,512	$ 28,018
Less accumulated depreciation	(18,133)	(20,166)
Property on operating leases, net	7,379	7,852
Additions, gross	0
Additions, less accumulated depreciation	(356)
Additions, net	(356)
Reclassifications or dispositions, gross	(2,506)
Reclassifications or dispositions, less accumulated depreciation	2,389
Reclassifications or dispositions, net	(117)
Marine Vessel [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	19,410	19,410
Additions, gross	0
Transportation, Rail [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	3,633	4,032
Additions, gross	0
Reclassifications or dispositions, gross	(399)
Transportation [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	208	208
Additions, gross	0
Reclassifications or dispositions, gross	0
Manufacturing [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	1,275	3,119
Additions, gross	0
Reclassifications or dispositions, gross	(1,844)
Materials Handling [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	125	125
Additions, gross	0
Reclassifications or dispositions, gross	0
Construction [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	582	582
Additions, gross	0
Reclassifications or dispositions, gross	0
Agriculture [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	279	$ 542
Additions, gross	0
Reclassifications or dispositions, gross	$ (263)

ATEL 14, LLC 10-Q