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Intangible Assets and Liabilities (Tables) | 6 Months Ended
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Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Summary of Intangible Assets and Liabilities | As of June 30, 2020 and December 31, 2019, the Company’s intangible assets/liabilities were comprised of the following (in thousands):
| June 30, 2020
| Total Cost |  | Accumulated Amortization |  | Intangible Assets, net
Intangible assets, net: |  |  |  |  |
In-place lease value | $ | 144,957 |  |  | $ | (78,187 | ) |  | $ | 66,770 |
Tenant relationship value | 5,142 |  |  | (4,859 | ) |  | 283 |
Above market leases acquired | 4,685 |  |  | (3,979 | ) |  | 706 |
| 154,784 |  |  | (87,025 | ) |  | 67,759 |
Assets held for sale | (57,465 | ) |  | 44,968 |  |  | (12,497 | )
Total intangible assets, net | $ | 97,319 |  |  | $ | (42,057 | ) |  | $ | 55,262 |
| Total Cost |  | Accumulated Amortization |  | Intangible Liabilities, net
Intangible liabilities, net: |  |  |  |  |
Below market leases acquired | $ | 34,751 |  |  | $ | (15,561 | ) |  | $ | 19,190 |
Assets held for sale | (5,225 | ) |  | 4,612 |  |  | (613 | )
Total intangible liabilities, net | $ | 29,526 |  |  | $ | (10,949 | ) |  | $ | 18,577 |
| December 31, 2019
| Total Cost |  | Accumulated Amortization |  | Intangible Assets, net
Intangible assets, net: |  |  |  |  |
In-place lease value | $ | 167,357 |  |  | $ | (84,123 | ) |  | $ | 83,234 |
Tenant relationship value | 5,268 |  |  | (4,815 | ) |  | 453 |
Above market leases acquired | 4,956 |  |  | (3,792 | ) |  | 1,164 |
Total intangible assets, net | $ | 177,581 |  |  | $ | (92,730 | ) |  | $ | 84,851 |
| Total Cost |  | Accumulated Amortization |  | Intangible Liabilities, net
Intangible liabilities, net: |  |  |  |  |
Below market leases acquired | $ | 44,757 |  |  | $ | (22,494 | ) |  | $ | 22,263 |
Summary of Amortization for Intangible Assets and Liabilities | As of June 30, 2020, the Company’s annual amortization for its intangible assets/liabilities, assuming no prospective early lease terminations, was as follows (dollars in thousands):
| Assets |  | Liabilities
2020 (six months remaining) | $ | 8,768 |  |  | $ | 2,057 |
2021 | 14,816 |  |  | 3,615 |
2022 | 9,652 |  |  | 2,079 |
2023 | 7,567 |  |  | 1,652 |
2024 | 5,214 |  |  | 1,425 |
Thereafter | 21,742 |  |  | 8,362 |
| 67,759 |  |  | 19,190 |
Assets held for sale | (12,497 | ) |  | (613 | )
Total | $ | 55,262 |  |  | $ | 18,577 |

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