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Intangible Assets and Below Market Lease Liabilities - Scheduled Future Amortization (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Dec. 31, 2015
Scheduled future amortization of intangible assets [Abstract] |  |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 224,459 | $ 231,765
Deferred Leasing Costs and Acquisition-Related Intangible Assets [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
April 1 through December 31, 2016 | 34,295 |
2017 | 38,954 |
2018 | 32,108 |
2019 | 26,469 |
2020 | 21,882 |
Thereafter | 48,940 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 202,648 |
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 8 months 12 days |
Lease Incentives [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
April 1 through December 31, 2016 | $ 1,011 |
2017 | 1,275 |
2018 | 1,171 |
2019 | 961 |
2020 | 725 |
Thereafter | 2,056 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 7,199 |
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 2 months 12 days |
Acquisition-Related Intangible Assets (in Rental and Other Revenues) [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
April 1 through December 31, 2016 | $ 2,805 |
2017 | 2,650 |
2018 | 1,706 |
2019 | 1,305 |
2020 | 988 |
Thereafter | 2,559 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 12,013 |
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 1 month 6 days |
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
April 1 through December 31, 2016 | $ 415 |
2017 | 553 |
2018 | 553 |
2019 | 553 |
2020 | 525 |
Thereafter | 0 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 2,599 |
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract] |  |
Finite-lived intangible assets, average useful life (in years) | 4 years 8 months 12 days |
Acquisition-Related Below Market Lease Liabilities [Member] |  |
Scheduled future amortization of below market lease liabilities [Abstract] |  |
April 1 through December 31, 2016 | $ (5,225) |
2017 | (6,619) |
2018 | (6,228) |
2019 | (5,737) |
2020 | (5,408) |
Thereafter | (14,914) |
Total scheduled future amortization of acquisition-related below market lease liabilities | $ (44,131) | $ (45,903)
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) | 7 years 8 months 12 days |

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