Mortgage and Other Indebtedness Mortgage and Other Indebtedness - Variable Rate Loans Repaid (Details) (USD $) In Thousands, unless otherwise specified		1 Months Ended	12 Months Ended	1 Months Ended
Jun. 30, 2012	Sep. 30, 2013 Forum at Grandview [Member]	Dec. 31, 2013 Forum at Grandview [Member]	Jul. 31, 2013 Alamance Crossing West [Member]	Feb. 28, 2013 Statesboro Crossing [Member]	Sep. 30, 2012 Rivergate Mall [Member]	Jun. 30, 2013 Mid Rivers Mall [Member]
Debt Instrument [Line Items]
Stated Interest Rate	5.00%	3.19%		3.20%	1.21%	3.47%	5.88%
Retirement of loan		$ 10,200	$ 2,023	$ 16,000	$ 13,460	$ 77,500	$ 88,410

Contractual interest rate for funds borrowed, under the debt agreement.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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