Summary of Significant Accounting Policies (Narrative) (Details) (USD $)	9 Months Ended
Sep. 30, 2012 sqft
Summary Of Significant Accounting Policies [Line Items]
Derivatives reclassified to interest expense	$ 3,100,000
Publix Super Markets [Member]
Summary Of Significant Accounting Policies [Line Items]
Largest tenant accounted gross leasable area, square feet	1,900,000
Largest tenant accounted gross leasable area, percentage of total area	10.20%
Annual minimum rent, gross leasable area	14,800,000
Percentage of annual minimum rent, gross leasable area	6.00%
Outstanding receivables	$ 307,000
Minimum [Member] \| Publix Super Markets [Member]
Summary Of Significant Accounting Policies [Line Items]
Percentage of annual minimum rent, gross leasable area	5.00%

The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph b(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_InterestRateCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant