Number of Single-tenant Lease Properties, Amended

No definition available.

Name:	afin_NumberofSingletenantLeasePropertiesAmended
Namespace Prefix:	afin_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of Single-tenants Lease Properties, Sold

+ References

No definition available.

+ Details

Name:	afin_NumberofSingletenantsLeasePropertiesSold
Namespace Prefix:	afin_
Data Type:	xbrli:integerItemType
Balance Type:	na
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

Name:	us-gaap_BusinessAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents the amount of gain (loss) on sale of properties during the reporting period net of the applicable income taxes realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 974
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-15.(a)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=6875705&loc=d3e641549-123027

+ Details

Name:	us-gaap_GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxes
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Revenue from the sale of commercial, industrial, or residential property during the period. This element is more likely than not relevant to an entity for which real estate operations are a principal activity. If real estate operations are not a principal activity, the reporting entity would likely use a gain (loss) on sale of property, plant, or equipment type element.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_SalesOfRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_CounterpartyNameAxis=afin_SuntrustBanksIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Real Estate Investments (Narrative) (Details) $ in Thousands		3 Months Ended		6 Months Ended
	May 12, 2016 USD ($) property	Jun. 30, 2016 USD ($) property	Jun. 30, 2015 USD ($) property	Jun. 30, 2016 USD ($) property	Jun. 30, 2015 USD ($) property
Business Acquisition [Line Items]
Number of real estate properties		459		459
Number of properties sold			0		0
Gain on sale of real estate investments \| $		$ 454	$ 0	$ 454	$ 0
SunTrust Bank
Business Acquisition [Line Items]
Number of properties sold	8
Sales of real estate \| $	$ 28,900
Gain on sale of real estate investments \| $		$ 500		$ 500
Number of property leases amended	160