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Lease Intangibles - Schedule of Intangible Assets and Liabilities Included in Other Assets and Other Liabilities (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
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Finite-Lived Intangible Assets [Line Items] |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 238,047 | $ 234,190
Amortizable Intangible Assets, Accumulated Amortization | (127,413) | (118,251)
Amortizable Intangible Assets, Net Carrying Amount | 110,634 | 115,939
Amortizable Intangible Liabilities |  |
Amortizable Intangible Liabilities, Gross Carrying Amount | (152,482) | (152,188)
Amortizable Intangible Liabilities, Accumulated Amortization | 66,226 | 57,721
Amortizable Intangible Liabilities, Net Carrying Amount | (86,256) | (94,467)
Above-market Ground Lease, Gross | (671) | (671)
Above-market Ground Lease, Accumulated Amortization | 108 | 93
Above-market Ground Lease, Net | (563) | (578)
Finite-Lived Intangible Liabilities, Gross | (153,153) | (152,859)
Finite-Lived Intangible Liabilities, Accumulated Amortization | 66,334 | 57,814
Finite-Lived Intangible Liabilities, Net | (86,819) | (95,045)
In-place lease intangible assets |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable Intangible Assets, Gross Carrying Amount | 220,293 | 216,021
Amortizable Intangible Assets, Accumulated Amortization | (114,578) | (105,972)
Amortizable Intangible Assets, Net Carrying Amount | 105,715 | 110,049
Amortizable Intangible Liabilities |  |
Amortizable Intangible Liabilities, Net Carrying Amount | (81,337) |
Above-market rent |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable Intangible Assets, Gross Carrying Amount | 17,754 | 18,169
Amortizable Intangible Assets, Accumulated Amortization | (12,835) | (12,279)
Amortizable Intangible Assets, Net Carrying Amount | $ 4,919 | $ 5,890

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