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Intangible Assets and Below Market Lease Liabilities - Scheduled Future Amortization (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 | Jun. 30, 2013 | Dec. 31, 2012
Scheduled future amortization of intangible assets [Abstract] |  |  |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | $ 181,802 | $ 181,802 | $ 168,019
Deferred Financing Costs [Member] |  |  |
Scheduled future amortization of intangible assets [Abstract] |  |  |
July 1, 2013 through December 31, 2013 | 1,828 | 1,828 |
2014 | 3,241 | 3,241 |
2015 | 2,606 | 2,606 |
2016 | 1,508 | 1,508 |
2017 | 1,220 | 1,220 |
Thereafter | 1,437 | 1,437 |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | 11,840 | 11,840 | 13,897
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract] |  |  |
Finite-lived intangible assets, average useful life (in years) |  | 5 years 4 months 24 days |
Deferred Leasing Costs and Acquisition-Related Intangible Assets [Member] |  |  |
Scheduled future amortization of intangible assets [Abstract] |  |  |
July 1, 2013 through December 31, 2013 | 17,283 | 17,283 |
2014 | 30,455 | 30,455 |
2015 | 24,935 | 24,935 |
2016 | 20,563 | 20,563 |
2017 | 17,526 | 17,526 |
Thereafter | 41,368 | 41,368 |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | 152,130 | 152,130 |
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract] |  |  |
Finite-lived intangible assets, average useful life (in years) |  | 6 years 4 months 24 days |
Lease Incentives [Member] |  |  |
Scheduled future amortization of intangible assets [Abstract] |  |  |
July 1, 2013 through December 31, 2013 | 621 | 621 |
2014 | 1,160 | 1,160 |
2015 | 932 | 932 |
2016 | 738 | 738 |
2017 | 664 | 664 |
Thereafter | 2,107 | 2,107 |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | 6,222 | 6,222 |
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract] |  |  |
Finite-lived intangible assets, average useful life (in years) |  | 7 years 7 months 6 days |
Acquisition-Related Intangible Assets (in Rental and Other Revenues) [Member] |  |  |
Scheduled future amortization of intangible assets [Abstract] |  |  |
July 1, 2013 through December 31, 2013 | 1,032 | 1,032 |
2014 | 1,817 | 1,817 |
2015 | 1,438 | 1,438 |
2016 | 1,085 | 1,085 |
2017 | 951 | 951 |
Thereafter | 1,156 | 1,156 |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | 7,479 | 7,479 |
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract] |  |  |
Finite-lived intangible assets, average useful life (in years) |  | 5 years 1 month 6 days |
Acquired finite-lived intangible assets, average useful life (in years) | 4 years 2 months 12 days |  |
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member] |  |  |
Scheduled future amortization of intangible assets [Abstract] |  |  |
July 1, 2013 through December 31, 2013 | 277 | 277 |
2014 | 553 | 553 |
2015 | 553 | 553 |
2016 | 553 | 553 |
2017 | 553 | 553 |
Thereafter | 1,642 | 1,642 |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | 4,131 | 4,131 |
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract] |  |  |
Finite-lived intangible assets, average useful life (in years) |  | 8 years |
Acquisition-Related Below Market Lease Liabilities [Member] |  |  |
Scheduled future amortization of below market lease liabilities [Abstract] |  |  |
July 1, 2013 through December 31, 2013 | (2,856) | (2,856) |
2014 | (5,080) | (5,080) |
2015 | (4,367) | (4,367) |
2016 | (4,293) | (4,293) |
2017 | (4,037) | (4,037) |
Thereafter | (19,432) | (19,432) |
Total scheduled future amortization of acquisition-related below market lease liabilities | $ (40,065) | $ (40,065) | $ (33,636)
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract] |  |  |
Finite-lived below market lease liabilities, average useful life (in years) |  | 9 years 2 months 12 days |
Assumed finite-lived below market lease liabilities, average useful life (in years) | 7 years 6 months |  |
in-Place Lease Intangible Assets [Member] |  |  |
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract] |  |  |
Acquired finite-lived intangible assets, average useful life (in years) | 5 years 3 months 18 days |  |

X
- Definition This element represents the liabilities net of accumulated amortization associated with the acquisition of an off-market lease when the terms of the lease are unfavorable to the market terms for the lease at the date of acquisition. + References No definition available. + Details
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- Definition Amount of amortization expense expected to be recognized after the fifth fiscal year following the latest fiscal year for below market lease liabilities, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Amount of amortization expense expected to be recognized in the remainder of the fiscal year following the latest fiscal year ended for below market lease liabilities, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for below market lease liabilities, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for below market lease liabilities, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for below market lease liabilities, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for below market lease liabilities, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Useful life of finite-lived intangible liabilities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The average useful life of all identifiable intangible liabilities established upon acquisition based on an unfavorable difference between the terms of an acquired lease and the current market terms for that lease at the acquisition date. + References No definition available. + Details
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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 + Details
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- Definition Amount of amortization expense expected to be recognized after the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Amount of amortization expense expected to be recognized in the remainder of the fiscal year following the latest fiscal year ended for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References No definition available. + Details
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- Definition Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -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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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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