v2.4.0.6

Notes Payable, Unsecured Notes and Credit Facility (Details 2) (USD $) | 12 Months Ended | 1 Months Ended |  | 1 Months Ended | 12 Months Ended |  |  | 12 Months Ended |  |  |  |  | 1 Months Ended | 12 Months Ended | 1 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Nov. 30, 2012 Unsecured notes | Dec. 31, 2012 Unsecured notes Minimum | Dec. 31, 2012 Unsecured notes Maximum | Dec. 31, 2012 Mortgage notes payable | Jan. 31, 2012 5.5% notes payable maturing in 2012 | Feb. 29, 2012 4.61% fixed-rate mortgage note | May 31, 2012 Variable rate secured mortgage note | Feb. 29, 2012 Variable rate secured mortgage note | Dec. 31, 2012 Variable rate unsecured credit facility option | Dec. 31, 2011 Variable rate unsecured credit facility | Sep. 30, 2011 Variable rate unsecured credit facility | Dec. 31, 2012 Variable rate unsecured credit facility Minimum | Dec. 31, 2012 Variable rate unsecured credit facility Maximum | Dec. 31, 2012 Fixed rate mortgage notes payable | Dec. 31, 2011 Fixed rate mortgage notes payable | Dec. 31, 2012 Variable rate mortgage notes payable and Credit Facility | Dec. 31, 2011 Variable rate mortgage notes payable and Credit Facility | May 31, 2012 Other | Dec. 31, 2012 2.85% unsecured notes maturing in September 2023 | Dec. 31, 2012 2.85% unsecured notes maturing in September 2023 | Sep. 30, 2012 2.95% unsecured notes maturing in September 2022
Notes Payable, Unsecured Notes and Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate, percentage |  |  | 6.125% |  |  |  | 5.50% | 4.61% |  |  |  |  |  |  |  |  |  |  |  |  | 2.85% | 2.85% | 2.95%
Principal amount of debt repaid |  |  | $ 201,601,000 |  |  |  | $ 179,400,000 |  | $ 14,566,000 | $ 48,500,000 |  |  |  |  |  |  |  |  |  | $ 33,100,000 |  |  |
Debt assumed |  |  |  |  |  |  |  | 11,958,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt, net | 1,179,000 | 1,940,000 |  |  |  |  |  |  |  | 1,179,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt, net | 602,000 | 3,880,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 602,000 |  |  |
Principal amount of unsecured notes issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 250,000,000 |  | 450,000,000
Effective interest rate, percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.00% | 4.30%
Available borrowing capacity |  |  |  |  |  |  |  |  |  |  | 1,300,000,000 |  | 750,000,000 |  |  |  |  |  |  |  |  |  |
Line of credit facility, extension options |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, additional extension period |  |  |  |  |  |  |  |  |  |  | 6 months |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, extension period |  |  |  |  |  |  |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |
Additional borrowing capacity |  |  |  |  |  |  |  |  |  |  | 550,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument variable rate |  |  |  |  |  |  |  |  |  |  | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate (as a percent) |  |  |  | 0.25% | 0.45% |  |  |  |  |  | 1.25% |  |  | 0.95% | 1.725% |  |  |  |  |  |  |  |
Current interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  | 1.05% |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity under competitive bid option |  |  |  |  |  |  |  |  |  |  | 65.00% |  |  |  |  |  |  |  |  |  |  |  |
Annual facility fee rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.175% | 0.15% |  |  |  |  |  |  |  |
Annual facility fee |  |  |  |  |  |  |  |  |  |  | 1,950,000 |  |  |  |  |  |  |  |  |  |  |  |
Outstanding balance of letters of credit |  |  |  |  |  |  |  |  |  |  | 44,883,000 | 52,659,000 |  |  |  |  |  |  |  |  |  |  |
Net carrying value of apartment communities and improved land parcels securing debt |  |  |  |  |  | 1,513,526,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage notes payable held by wholly owned subsidiaries guaranteed by the Company |  |  |  |  |  | 245,787,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average interest rate, debt (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.80% | 5.70% | 2.70% | 2.30% |  |  |  |
Extension fee |  |  |  |  |  |  |  |  |  |  | $ 975,000 |  |  |  |  |  |  |  |  |  |  |  |

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- Definition This item represents a non-contingent liability for the fair value of an obligation to stand ready to perform over the term of a guaranty issued in the event that specified triggering events or conditions occur. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 25 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7661617&loc=d3e11019-110243 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 45 -Paragraph 5, 9 -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. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 45 -Paragraph 3 -Subparagraph b, d -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. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 25 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7661617&loc=d3e11049-110243 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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. 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: 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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