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Debt | 3 Months Ended
--- | ---
Mar. 31, 2013
Debt Disclosure [Abstract] |
Debt | Debt Our debt consisted of the following (dollars in thousands):
| Maximum |  |  |  |  |  |  |  |
| Availability at |  | Carrying Value at |  |  |  | Scheduled Maturity
| March 31, 2013 |  | March 31, 2013 |  | December 31, 2012 |  | Stated Interest Rates at |  | Dates at
|  |  |  | March 31, 2013 |  | March 31, 2013
Mortgage and Other Secured Loans: |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate mortgage loans (1) | N/A |  |  | $ | 931,952 |  |  | $ | 948,414 |  |  | 3.96% - 7.87% (2) |  | 2013-2034
Variable rate secured loans | N/A |  |  | 38,270 |  |  | 38,475 |  |  | LIBOR + 2.25% (3) |  | 2015
Other construction loan facilities | $ | 70,800 |  |  | 35,400 |  |  | 29,557 |  |  | LIBOR + 1.95% to 2.75% (4) |  | 2013-2015
Total mortgage and other secured loans |  |  |  | 1,005,622 |  |  | 1,016,446 |  |  |  |  |
Revolving Credit Facility | 800,000 |  |  | — |  |  | — |  |  | LIBOR + 1.75% to 2.50% |  | September 1, 2014
Term Loan Facilities (5) | 770,000 |  |  | 770,000 |  |  | 770,000 |  |  | LIBOR + 1.65% to 2.60% (6) |  | 2015-2019
Unsecured notes payable | N/A |  |  | 1,766 |  |  | 1,788 |  |  | 0% (7) |  | 2026
4.25% Exchangeable Senior Notes (8) | N/A |  |  | 179,972 |  |  | 230,934 |  |  | 4.25% |  | April 2030
Total debt |  |  |  | $ | 1,957,360 |  |  | $ | 2,019,168 |  |  |  |  |
(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 |  | 2012
Interest expense at stated interest rate | $ | 2,304 |  |  | $ | 2,550 |
Interest expense associated with amortization of discount | 864 |  |  | 892 |
Total | $ | 3,168 |  |  | $ | 3,442 |
We capitalized interest costs of $2.4 million in the three months ended March 31, 2013 and $3.8 million in the three months ended March 31, 2012. The following table sets forth information pertaining to the fair value of our debt (in thousands):
| March 31, 2013 |  | December 31, 2012
| Carrying |  | Estimated |  | Carrying |  | Estimated
| Amount |  | Fair Value |  | Amount |  | Fair Value
Fixed-rate debt |  |  |  |  |  |  |  |  |  |  |
4.25% Exchangeable Senior Notes | $ | 179,972 |  |  | $ | 187,150 |  |  | $ | 230,934 |  |  | $ | 240,282 |
Other fixed-rate debt | 933,718 |  |  | 947,263 |  |  | 950,202 |  |  | 968,180 |
Variable-rate debt | 843,670 |  |  | 849,555 |  |  | 838,032 |  |  | 845,558 |
| $ | 1,957,360 |  |  | $ | 1,983,968 |  |  | $ | 2,019,168 |  |  | $ | 2,054,020 |

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + 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 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 4: 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. + Details
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