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Debt (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended | 3 Months Ended |  |  |  | 0 Months Ended | 3 Months Ended |  | 3 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2014 loan property | Mar. 31, 2013 | Dec. 31, 2013 loan property | Mar. 31, 2014 Five-Year $50.0 Million Term Loan [Member] | Dec. 31, 2013 Five-Year $50.0 Million Term Loan [Member] | Mar. 31, 2014 Mortgage Loans Payable [Member] | Dec. 31, 2013 Mortgage Loans Payable [Member] | May 08, 2014 Revolving Credit Facility [Member] | Mar. 31, 2014 Revolving Credit Facility [Member] | Dec. 31, 2013 Revolving Credit Facility [Member] | Mar. 31, 2014 Revolving Credit Facility [Member] Maximum [Member] | Mar. 31, 2014 Revolving Credit Facility [Member] Minimum [Member] | Mar. 31, 2014 Revolving Credit Facility [Member] Five-Year $50.0 Million Term Loan [Member]
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility term loan |  |  |  | 5 years |  |  |  |  |  |  |  |  |
Credit facility |  |  |  | $ 50.0 |  |  |  |  | $ 100.0 |  |  |  | $ 150.0
Maturity date, line of credit |  |  |  | Jan. 16, 2018 |  |  |  |  | Jan. 01, 2016 |  |  |  |
Maximum possible increase |  |  |  |  |  |  |  |  | 300.0 |  |  |  |
Extension option on maturity date | 12 months |  |  |  |  |  |  |  |  |  |  |  |
Borrowing Base Properties Percentage |  |  |  |  |  |  |  | 60.00% | 60.00% |  |  |  |
LIBOR margin |  |  |  |  |  |  |  |  | 1.00% |  | 2.65% | 1.65% |
Effective rate |  |  |  |  |  |  |  |  | 0.50% |  |  |  |
Unused facility fee rate |  |  |  |  |  |  |  |  |  |  | 0.35% | 0.25% |
Borrowings outstanding under the facility |  |  |  | 50.0 | 50.0 |  |  |  | 67.5 | 31.0 |  |  |
Properties under borrowing base | 24 |  | 19 |  |  |  |  |  |  |  |  |  |
Number of mortgage loans payable | 9 |  | 9 |  |  |  |  |  |  |  |  |  |
Secured loan |  |  |  |  |  | 104.4 | 108.3 |  |  |  |  |  |
Weighted average fixed annual rate | 3.10% |  |  |  |  | 4.50% | 4.50% |  |  |  |  |  |
Total net investment book value of properties securing the debt |  |  |  |  |  | 211.7 | 218.0 |  |  |  |  |  |
Capitalized insterest associated with redevelopment activities | $ 0.3 | $ 0.1 |  |  |  |  |  |  |  |  |  |  |

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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: 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 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Carrying value as of the balance sheet date of the portion of long-term, collateralized debt obligations due within one year or the operating cycle, if longer. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20 -Article 5 + Details
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