Equipment Under Operating Leases, Net (Property on Operating Leases) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Dec. 31, 2019
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	$ 30,571	$ 30,707
Less accumulated depreciation	(19,428)	(19,230)
Property on operating leases, net	11,143	11,477
Additions, less accumulated depreciation	(332)
Additions, net	(332)
Reclassifications or dispositions, gross	(136)
Reclassifications or dispositions, less accumulated depreciation	134
Reclassifications or dispositions, net	(2)
Marine Vessel [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	19,410	19,410
Transportation, Rail [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	4,010	4,010
Transportation [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	208	208
Manufacturing [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	5,199	5,292
Reclassifications or dispositions, gross	(93)
Materials Handling [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	283	326
Reclassifications or dispositions, gross	(43)
Construction [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	919	919
Agriculture [Member]
Lessor, Lease, Description [Line Items]
Property on operating leases, gross	$ 542	$ 542

- Definition

The amount of accumulated depreciation, by major property class, recorded on property subject to or available for lease as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	cik0001463389_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount before accumulated depreciation of physical assets used in the normal conduct of business to produce goods and services subject to or available for lease.

+ References

No definition available.

+ Details

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Namespace Prefix:	cik0001463389_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of property, by major property class, net of accumulated depreciation, subject to or available for lease as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	cik0001463389_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Property subject to or available for operating lease accumulated depreciation, additions.

+ References

No definition available.

+ Details

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Namespace Prefix:	cik0001463389_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Property subject to or available for operating lease accumulated depreciation, reclassifications or dispositions.

+ References

No definition available.

+ Details

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Namespace Prefix:	cik0001463389_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Property subject to or available for operating lease, additions.

+ References

No definition available.

+ Details

Name:	cik0001463389_PropertySubjectToOrAvailableForOperatingLeaseAdditions
Namespace Prefix:	cik0001463389_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Property subject to or available for operating lease, reclassifications or dispositions.

+ References

No definition available.

+ Details

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Namespace Prefix:	cik0001463389_
Data Type:	xbrli:monetaryItemType
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- Definition

Property subject to or available for operating lease reclassifications or dispositions, gross.

+ References

No definition available.

+ Details

Name:	cik0001463389_PropertySubjectToOrAvailableForOperatingLeaseReclassificationsOrDispositionsGross
Namespace Prefix:	cik0001463389_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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