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Real Estate (Intangible Assets, Lease Liabilities, and Related Amortization) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Intangible lease liabilities (included in other liabilities): |  |  |  |  |
Below-market in-place leases | $ 41,373 |  | $ 41,373 |  | $ 41,101
Less: accumulated amortization | (26,887) |  | (26,887) |  | (26,486)
Below-market in-place leases, net | 14,486 |  | 14,486 |  | 14,615
Above-market in-place leases |  |  |  |  |
Intangible lease assets (included in other assets): |  |  |  |  |
Leases | 15,389 |  | 15,389 |  | 15,474
Less: accumulated amortization | (10,525) |  | (10,525) |  | (10,271)
Leases, net | 4,864 |  | 4,864 |  | 5,203
In-place leases |  |  |  |  |
Intangible lease assets (included in other assets): |  |  |  |  |
Leases | 121,951 |  | 121,951 |  | 118,416
Less: accumulated amortization | (70,671) |  | (70,671) |  | (68,695)
Leases, net | 51,280 |  | 51,280 |  | $ 49,721
Intangible lease liabilities (included in other liabilities): |  |  |  |  |
Amortization expense, in-place leases | 1,812 | $ 1,942 | 3,612 | $ 4,337 |
Above-market and below-market in-place leases |  |  |  |  |
Intangible lease liabilities (included in other liabilities): |  |  |  |  |
Amortization expense, above- and below-market leases | $ 112 | $ 190 | $ 274 | $ 410 |

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