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Discontinued Operations (Narrative) (Details) (USD $)	9 Months Ended				3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	May 06, 2014 McCormick Place [Member]	May 27, 2014 Gahanna Discount Drug Mart Plaza [Member]	Jun. 30, 2014 Discontinued Operations [Member] McCormick Place [Member]	Jun. 30, 2014 Discontinued Operations [Member] Gahanna Discount Drug Mart Plaza [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Mortgage loans payable and accrued interest for properties under conveyance process			$ 2,700,000	$ 5,000,000
Carrying value of property held for sale			1,800,000	4,300,000
Gain on extinguishment of debt obligations	$ 1,423,000	$ 1,298,000			$ 800,000	$ 600,000

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- Definition

Mortgage Loans Payable And Accrued Interest For Conveyance Properties In Process

+ References

No definition available.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 50

-Section 40

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 50

-Section 40

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629

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- Definition

Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

+ 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(f))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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