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Intangible Assets and Below Market Lease Liabilities - Scheduled Future Amortization (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Scheduled future amortization of intangible assets [Abstract] |  |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 196,048 | $ 195,273
Scheduled future amortization of below market lease liabilities [Abstract] |  |
Total scheduled future amortization of acquisition-related below market lease liabilities | (20,576) | $ (25,648)
Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization) [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
October 1 through December 31, 2019 | 9,538 |
2020 | 34,968 |
2021 | 30,100 |
2022 | 25,689 |
2023 | 22,180 |
Thereafter | 58,995 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 181,470 |
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 3 months 18 days |
Lease Incentives (in Rental and Other Revenues) [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
October 1 through December 31, 2019 | $ 428 |
2020 | 1,584 |
2021 | 1,338 |
2022 | 1,104 |
2023 | 1,025 |
Thereafter | 4,735 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 10,214 |
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract] |  |
Finite-lived intangible assets, average useful life (in years) | 9 years 3 months 18 days |
Acquisition-Related Intangible Assets (in Rental and Other Revenues) [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
October 1 through December 31, 2019 | $ 258 |
2020 | 954 |
2021 | 631 |
2022 | 462 |
2023 | 308 |
Thereafter | 1,100 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 3,713 |
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 6 months |
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
October 1 through December 31, 2019 | $ 137 |
2020 | 514 |
2021 | 0 |
2022 | 0 |
2023 | 0 |
Thereafter | 0 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 651 |
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract] |  |
Finite-lived intangible assets, average useful life (in years) | 1 year 2 months 12 days |
Acquisition-Related Below Market Lease Liabilities (in Rental and Other Revenues) [Member] |  |
Scheduled future amortization of below market lease liabilities [Abstract] |  |
October 1 through December 31, 2019 | $ (1,349) |
2020 | (5,107) |
2021 | (4,152) |
2022 | (3,086) |
2023 | (2,707) |
Thereafter | (4,175) |
Total scheduled future amortization of acquisition-related below market lease liabilities | $ (20,576) |
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) | 5 years 2 months 12 days |

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