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Lease Intangibles - Schedule of Intangible Assets and Liabilities Included in Other Assets and Other Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
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Finite-Lived Intangible Assets [Line Items] |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 252,470 | $ 234,190
Amortizable Intangible Assets, Accumulated Amortization | (135,396) | (118,251)
Amortizable Intangible Assets, Net Carrying Amount | 117,074 | 115,939
Amortizable Intangible Liabilities |  |
Amortizable Intangible Liabilities, Gross Carrying Amount | (157,657) | (152,188)
Amortizable Intangible Liabilities, Accumulated Amortization | 68,818 | 57,721
Amortizable Intangible Liabilities, Net Carrying Amount | (88,839) | (94,467)
Above-market Ground Lease, Gross | (671) | (671)
Above-market Ground Lease, Accumulated Amortization | 122 | 93
Above-market Ground Lease, Net | (549) | (578)
Finite-Lived Intangible Liabilities, Gross | (158,328) | (152,859)
Finite-Lived Intangible Liabilities, Accumulated Amortization | 68,940 | 57,814
Finite-Lived Intangible Liabilities, Net | (89,388) | (95,045)
In-place lease intangible assets |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable Intangible Assets, Gross Carrying Amount | 234,479 | 216,021
Amortizable Intangible Assets, Accumulated Amortization | (122,067) | (105,972)
Amortizable Intangible Assets, Net Carrying Amount | 112,412 | 110,049
Amortizable Intangible Liabilities |  |
Amortizable Intangible Liabilities, Net Carrying Amount | (84,177) |
Above-market rent |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable Intangible Assets, Gross Carrying Amount | 17,991 | 18,169
Amortizable Intangible Assets, Accumulated Amortization | (13,329) | (12,279)
Amortizable Intangible Assets, Net Carrying Amount | $ 4,662 | $ 5,890

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