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Intangible Assets and Below Market Lease Liabilities - Scheduled Future Amortization (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018
Scheduled future amortization of intangible assets [Abstract] |  |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 194,848 | $ 195,273
Scheduled future amortization of below market lease liabilities [Abstract] |  |
Total scheduled future amortization of acquisition-related below market lease liabilities | (23,995) | $ (25,648)
Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization) [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
April 1 through December 31, 2019 | 28,419 |
2020 | 32,940 |
2021 | 28,377 |
2022 | 24,053 |
2023 | 20,650 |
Thereafter | 46,416 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 180,855 |
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 1 month |
Lease Incentives (in Rental and Other Revenues) [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
April 1 through December 31, 2019 | $ 1,222 |
2020 | 1,300 |
2021 | 1,060 |
2022 | 836 |
2023 | 763 |
Thereafter | 3,521 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 8,702 |
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 2 months |
Acquisition-Related Intangible Assets (in Rental and Other Revenues) [Member] |  |
Scheduled future amortization of intangible assets [Abstract] |  |
April 1 through December 31, 2019 | $ 903 |
2020 | 957 |
2021 | 631 |
2022 | 462 |
2023 | 308 |
Thereafter | 1,100 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 4,361 |
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] |  |
April 1 through December 31, 2019 | $ 416 |
2020 | 514 |
2021 | 0 |
2022 | 0 |
2023 | 0 |
Thereafter | 0 |
Deferred leasing costs, net/Total scheduled future amortization of intangible assets | $ 930 |
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 8 months |
Acquisition-Related Below Market Lease Liabilities (in Rental and Other Revenues) [Member] |  |
Scheduled future amortization of below market lease liabilities [Abstract] |  |
April 1 through December 31, 2019 | $ (4,649) |
2020 | (5,005) |
2021 | (4,204) |
2022 | (3,133) |
2023 | (2,753) |
Thereafter | (4,251) |
Total scheduled future amortization of acquisition-related below market lease liabilities | $ (23,995) |
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 6 months |

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