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Intangible Assets and Below Market Lease Liabilities - Scheduled Future Amortization (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012
Scheduled future amortization of intangible assets [Abstract] |  |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | $ 222,211 | $ 163,964
Deferred Financing Costs [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
2014 | 2,786 |
2015 | 2,751 |
2016 | 2,486 |
2017 | 2,191 |
2018 | 1,084 |
Thereafter | 861 |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | 12,159 | 13,897
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract] |  |
Intangible assets, weighted average useful life (in years) | 4 years 8 months 12 days |
Deferred Leasing Costs and Acquisition-Related Intangible Assets [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
2014 | 38,631 |
2015 | 32,150 |
2016 | 26,535 |
2017 | 22,568 |
2018 | 18,323 |
Thereafter | 43,097 |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | 181,304 |
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract] |  |
Intangible assets, weighted average useful life (in years) | 6 years 9 months 19 days |
Lease Incentives [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
2014 | 1,266 |
2015 | 1,027 |
2016 | 851 |
2017 | 777 |
2018 | 674 |
Thereafter | 2,073 |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | 6,668 |
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract] |  |
Intangible assets, weighted average useful life (in years) | 7 years 11 months |
Acquisition-Related Intangible Assets (in Rental and Other Revenue) [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
2014 | 4,338 |
2015 | 3,622 |
2016 | 2,810 |
2017 | 2,268 |
2018 | 1,424 |
Thereafter | 3,767 |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | 18,229 |
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract] |  |
Intangible assets, weighted average useful life (in years) | 6 years 8 months 12 days |
Acquired intangible assets, weighted average useful life (in years) | 6 years 6 months |
Acquisition-Related Intangible Assets (amortized in Depreciation and Amortization) [Member] |  |
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract] |  |
Acquired intangible assets, weighted average useful life (in years) | 6 years 6 months |
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
2014 | 553 |
2015 | 553 |
2016 | 553 |
2017 | 553 |
2018 | 553 |
Thereafter | 1,086 |
Deferred financing and leasing costs, net/Total scheduled future amortization of intangible assets | 3,851 |
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract] |  |
Intangible assets, weighted average useful life (in years) | 7 years |
Acquisition-Related Below Market Lease Liabilities [Member] |  |
Scheduled future amortization of below market lease liabilites [Abstract] |  |
2014 | (5,991) |
2015 | (5,722) |
2016 | (5,429) |
2017 | (5,165) |
2018 | (5,017) |
Thereafter | (19,521) |
Total scheduled future amortization of below market lease liabilities | $ (46,845) | $ (33,636)
Weighted average remaining amortization periods for intangible assets and liabilities [Abstract] |  |
Below market lease liabilities, weighted average useful life (in years) | 9 years 1 month 7 days |
Assumed finite-lived below market lease liabilities, weighted average useful life (in years) | 8 years 11 months |

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