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Debt (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Dec. 31, 2012
Debt |  |  |  |  |
Carrying Value | $ 1,957,360,000 |  |  | $ 2,019,168,000 |
Loss on early extinguishment of debt | 5,184,000 |  | 0 |  |
Interest expense associated with amortization of discount | 710,000 |  | 775,000 |  |
Capitalized interest costs | 2,400,000 |  | 3,800,000 |  |
Mortgage and Other Secured Loans: |  |  |  |  |
Debt |  |  |  |  |
Carrying Value | 1,005,622,000 |  |  | 1,016,446,000 |
Fixed rate mortgage loans |  |  |  |  |
Debt |  |  |  |  |
Carrying Value | 931,952,000 | [1] |  | 948,414,000 | [1]
Stated Interest Rates, low end of range (as a percent) | 3.96% | [2] |  |  |
Stated Interest Rates, high end of range (as a percent) | 7.87% | [2] |  |  |
Unamortized premium included in carrying value | 877,000 |  |  | 1,300,000 |
Weighted average interest rate (as a percent) | 5.97% |  |  |  |
Variable rate secured loans |  |  |  |  |
Debt |  |  |  |  |
Carrying Value | 38,270,000 |  |  | 38,475,000 |
Description of variable rate basis | LIBOR | [3] |  |  |
Variable rate, spread (as a percent) | 2.25% | [3] |  |  |
Interest rate on debt (as a percent) | 2.45% |  |  |  |
Other construction loan facilities |  |  |  |  |
Debt |  |  |  |  |
Maximum Availability | 70,800,000 |  |  |  |
Carrying Value | 35,400,000 |  |  | 29,557,000 |
Description of variable rate basis | LIBOR | [4] |  |  |
Variable rate, spread low end of range (as a percent) | 1.95% | [4] |  |  |
Variable rate, spread high end of range (as a percent) | 2.75% | [4] |  |  |
Weighted average interest rate (as a percent) | 2.51% |  |  |  |
Revolving Credit Facility |  |  |  |  |
Debt |  |  |  |  |
Maximum Availability | 800,000,000 |  |  |  |
Carrying Value | 0 |  |  | 0 |
Description of variable rate basis | LIBOR |  |  |  |
Variable rate, spread low end of range (as a percent) | 1.75% |  |  |  |
Variable rate, spread high end of range (as a percent) | 2.50% |  |  |  |
Term Loan Facility |  |  |  |  |
Debt |  |  |  |  |
Maximum Availability | 770,000,000 | [5] |  |  |
Carrying Value | 770,000,000 | [5] |  | 770,000,000 | [5]
Description of variable rate basis | LIBOR | [5],[6] |  |  |
Variable rate, spread low end of range (as a percent) | 1.65% | [5],[6] |  |  |
Variable rate, spread high end of range (as a percent) | 2.60% | [5],[6] |  |  |
Weighted average interest rate (as a percent) | 1.93% |  |  |  |
Additional borrowing capacity available provided there is no default under the agreement | 180,000,000 |  |  | 180,000,000 |
Unsecured notes payable |  |  |  |  |
Debt |  |  |  |  |
Carrying Value | 1,766,000 |  |  | 1,788,000 |
Stated interest rate (as a percent) | 0.00% | [7] |  |  |
Unamortized discount included in carrying value | 845,000 |  |  | 873,000 |
4.25% Exchangeable Senior Notes |  |  |  |  |
Debt |  |  |  |  |
Carrying Value | 179,972,000 |  |  | 230,934,000 | [8]
Stated interest rate (as a percent) | 4.25% |  |  |  |
Unamortized discount included in carrying value | 6,300,000 |  |  | 9,100,000 |
Convertible debt principal amount, basis for exchange | 1,000 |  |  |  |
Exchange rate per $1000 principal amount (in common shares) | 20.8513 |  |  |  |
Exchange price per common share based on exchange rate (in dollars per share) | $ 47.96 |  |  |  |
Amount of debt repaid | 53,700,000 |  |  |  |
Loss on early extinguishment of debt | 5,300,000 |  |  |  |
Principal amount of debt | 186,300,000 |  |  | 240,000,000 |
Effective interest rate, including amortization of issuance costs (as a percent) | 6.05% |  |  |  |
Interest expense at stated interest rate | 2,304,000 |  | 2,550,000 |  |
Interest expense associated with amortization of discount | 864,000 |  | 892,000 |  |
Total interest expenses | $ 3,168,000 |  | $ 3,442,000 |  |
[1] | Several of the fixed rate mortgages carry interest rates that were above or below market rates upon assumption and therefore were recorded at their fair value based on applicable effective interest rates. The carrying values of these loans reflect net unamortized premiums totaling $877,000 at March 31, 2013 and $1.3 million at December 31, 2012.
[2] | The weighted average interest rate on these loans was 5.97% at March 31, 2013.
[3] | The interest rate on the loan outstanding was 2.45% at March 31, 2013.
[4] | The weighted average interest rate on these loans was 2.51% at March 31, 2013.
[5] | We have the ability to borrow an aggregate of an additional $180.0 million under these term loan facilities, provided that there is no default under the facilities and subject to the approval of the lenders.
[6] | The weighted average interest rate on these loans was 1.93% at March 31, 2013.
[7] | These notes carry interest rates that were below market rates upon assumption and therefore were recorded at their fair value based on applicable effective interest rates. The carrying value of these notes reflects an unamortized discount totaling $845,000 at March 31, 2013 and $873,000 at December 31, 2012.
[8] | As described further in our 2012 Annual Report on Form 10-K, these notes have an exchange settlement feature that provides that the notes may, under certain circumstances, be exchangeable for cash and, at the Operating Partnership’s discretion, our common shares at an exchange rate (subject to adjustment) of 20.8513 shares per one thousand dollar principal amount of the notes (exchange rate is as of March 31, 2013 and is equivalent to an exchange price of $47.96 per common share). During the three months ended March 31, 2013, we repaid $53.7 million principal amount of these notes and recognized a $5.3 million loss on early extinguishment of debt. The carrying value of these notes included a principal amount of $186.3 million and an unamortized discount totaling $6.3 million at March 31, 2013 and a principal amount of $240.0 million and an unamortized discount totaling $9.1 million at December 31, 2012. The effective interest rate under the notes, including amortization of the issuance costs, was 6.05%. Because the closing price of our common shares at March 31, 2013 and December 31, 2012 was less than the exchange price per common share applicable to these notes, the if-converted value of the notes did not exceed the principal amount. The table below sets forth interest expense recognized on these notes before deductions for amounts capitalized (in thousands): For the Three Months Ended March 31, 2013 2012Interest expense at stated interest rate$2,304 $2,550Interest expense associated with amortization of discount864 892Total$3,168 $3,442

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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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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 5: 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) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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