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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2012
Accounting Policies [Abstract] |
Notes Receivable Included In Accounts Receivable | We include the following notes receivable balances in our accounts receivable balances (in thousands):
| December 31,
| 2012 |  | 2010
Notes receivable, net | $ | 7,297 |  |  | $ | 7,348 |
Deferred Financing Costs | As of December 31, 2012 and 2011 deferred financing costs were included in prepaid expenses and other assets were as follows (in thousands):
| December 31,
| 2012 |  | 2011
| Gross Carrying Value |  | Accumulated Amortization |  | Net |  | Gross Carrying Value |  | Accumulated Amortization |  | Net
Deferred financing costs | $ | 19,622 |  |  | $ | 8,902 |  |  | $ | 10,720 |  |  | $ | 16,131 |  |  | $ | 7,580 |  |  | $ | 8,551 |
Amortization of Deferred Financing Costs | Amortization of deferred financing costs from continuing operations for the three years ended December 31, 2012 was as follows (in thousands):
| Year Ended December 31,
| 2012 |  | 2011 |  | 2010
Amortization of deferred financing costs | $ | 2,478 |  |  | $ | 2,262 |  |  | $ | 2,413 |
Deferred Leasing Costs | As of December 31, 2012 and 2011, deferred leasing costs included in prepaid expenses and other assets were as follows (in thousands):
| December 31,
| 2012 |  | 2011
| Gross Carrying Value |  | Accumulated Amortization |  | Net |  | Gross Carrying Value |  | Accumulated Amortization |  | Net
Deferred leasing costs | $ | 39,159 |  |  | $ | 16,348 |  |  | $ | 22,811 |  |  | $ | 33,011 |  |  | $ | 12,511 |  |  | $ | 20,500 |
Amortization of Deferred Leasing Costs | Amortization and writes-offs of deferred leasing costs from continuing operations for the three years ended December 31, 2012 were as follows (in thousands):
| Year Ended December 31,
| 2012 |  | 2011 |  | 2010
Amortization of deferred leasing costs | $ | 4,514 |  |  | $ | 4,530 |  |  | $ | 4,357 |
Deferred Leasing Incentives | As of December 31, 2012 and 2011, deferred leasing incentives included in prepaid expenses and other assets were as follows (in thousands):
| December 31,
| 2012 |  | 2011
| Gross Carrying Value |  | Accumulated Amortization |  | Net |  | Gross Carrying Value |  | Accumulated Amortization |  | Net
Deferred leasing incentives | $ | 6,578 |  |  | $ | 1,698 |  |  | $ | 4,880 |  |  | $ | 4,651 |  |  | $ | 909 |  |  | $ | 3,742 |
Amortization of Deferred Leasing Incentives | Amortization and write-offs of deferred leasing costs from continuing operations for the three years ended December 31, 2012 were as follows (in thousands):
| Year Ended December 31,
| 2012 |  | 2011 |  | 2010
Amortization of deferred leasing incentives | $ | 789 |  |  | $ | 664 |  |  | $ | 208 |
Depreciation Expense | Real estate depreciation expense from continuing operations for the three years ended December 31, 2012 was as follows (in thousands):
| Year Ended December 31,
| 2012 |  | 2011 |  | 2010
Real estate depreciation | $ | 76,824 |  |  | $ | 69,753 |  |  | $ | 63,372 |
Capitalized Interest Expense | nterest expense from continuing operations and interest capitalized to real estate assets related to development and major renovation activities for the three years ended December 31, 2012 were as follows (in thousands):
| Year Ended December 31,
| 2012 |  | 2011 |  | 2010
Total interest expense from continuing operations | $ | 66,385 |  |  | $ | 66,952 |  |  | $ | 67,823 |
Capitalized interest | 1,688 |  |  | 738 |  |  | 858 |
Interest expense, net of capitalized interest | $ | 64,697 |  |  | $ | 66,214 |  |  | $ | 66,965 |
Components of Fair Value of In-Place Leases | Balances, net of accumulated depreciation or amortization, as appropriate, of the components of the fair value of in-place leases at December 31, 2012 and 2011 were as follows (in thousands):
| December 31,
| 2012 |  | 2011
| Gross Carrying Value |  | Accumulated Amortization |  | Net |  | Gross Carrying Value |  | Accumulated Amortization |  | Net
Tenant origination costs | $ | 58,444 |  |  | $ | 32,839 |  |  | $ | 25,605 |  |  | $ | 55,640 |  |  | $ | 25,479 |  |  | $ | 30,161 |
Leasing commissions/absorption costs | 90,327 |  |  | 48,163 |  |  | 42,164 |  |  | 86,705 |  |  | 34,738 |  |  | 51,967 |
Net lease intangible assets | 14,794 |  |  | 7,665 |  |  | 7,129 |  |  | 14,422 |  |  | 5,679 |  |  | 8,743 |
Net lease intangible liabilities | 32,093 |  |  | 22,336 |  |  | 9,757 |  |  | 31,991 |  |  | 19,293 |  |  | 12,698 |
Below-market ground lease intangible asset | 12,080 |  |  | 956 |  |  | 11,124 |  |  | 12,080 |  |  | 766 |  |  | 11,314 |
Amortization of Fair Value In-Place Leases | Amortization of these combined components from continuing operations for the three years ended December 31, 2012 were as follows (in thousands):
| Year Ended December 31,
| 2012 |  | 2011 |  | 2010
Amortization | $ | 20,636 |  |  | $ | 15,360 |  |  | $ | 7,643 |
Components of Fair Value of In-Place Leases - Future Amortization | Amortization of these combined components from continuing operations over the next five years is projected to be as follows (in thousands):
2013 | $ | 17,382 |
2014 | 14,837 |
2015 | 12,228 |
2016 | 8,984 |
2017 | 5,548 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + 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 210.5-02.3,4) -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 3, 4 -Article 5 + Details
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