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Allowance for Doubtful Accounts (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) property	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Allowance for Doubtful Accounts
Balance in allowance for doubtful accounts	$ 0		$ 0		$ 0
Bad debt expense	$ 15,000		$ 310,000	$ 190,000
Number of properties relating to bad debt expense | property			4
Percentage of rental income	1.00%	1.00%	1.00%	1.00%
Write-off of unbilled rent receivable			$ 362,000
Write-off of unamortized intangible lease assets			67,000
Write off of tenant origination costs			884,000
Net book value of property	$ 8,516,000		$ 8,516,000
Sports Authority Inc.
Allowance for Doubtful Accounts
Bad debt expense		$ 37,000		$ 190,000
Maximum | Sports Authority Inc.
Allowance for Doubtful Accounts
Percentage of rental income		1.00%		1.00%

X

- Definition

Number of properties which are occupied by tenant and classified as bad debt.

+ References

No definition available.

+ Details

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- Definition

Represent the percentage of the company's rental income accounted by the tenant.

+ References

No definition available.

+ Details

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- Definition

Represents information pertaining to write-off of tenant origination costs.

+ References

No definition available.

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- Definition

Represents the amount of unamortized intangible lease assets written off during the period.

+ References

No definition available.

+ Details

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- Definition

Represents the amount of unbilled rent receivable written off during the period.

+ References

No definition available.

+ Details

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- 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.

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5074-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

+ 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 210.5-03.5)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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- Definition

The book value of investments in real estate joint ventures including direct and indirect investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(d))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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