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Lease Intangibles - Schedule of Intangible Assets and Liabilities Included in Other Assets and Accounts Payable and Other Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Finite-Lived Intangible Assets [Line Items] |  |
Amortizable Intangible Assets, Gross Carrying Amount | $ 287,523 | $ 267,188
Amortizable Intangible Assets, Accumulated Amortization | (186,791) | (150,368)
Amortizable Intangible Assets, Net Carrying Amount | 100,732 | 116,820
Amortizable Intangible Liabilities |  |
Amortizable Intangible Liabilities, Gross Carrying Amount | (164,923) | (160,721)
Amortizable Intangible Liabilities, Accumulated Amortization | 88,951 | 78,315
Amortizable Intangible Liabilities, Net Carrying Amount | (75,972) | (82,406)
Above-market Ground Lease, Gross | (671) | (671)
Above-market Ground Lease, Accumulated Amortization | 209 | 151
Above-market Ground Lease, Net | (462) | (520)
Finite-Lived Intangible Liabilities, Gross | (165,594) | (161,392)
Finite-Lived Intangible Liabilities, Accumulated Amortization | 89,160 | 78,466
Finite-Lived Intangible Liabilities, Net | (76,434) | (82,926)
In-place lease intangible assets |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable Intangible Assets, Gross Carrying Amount | 268,335 | 249,961
Amortizable Intangible Assets, Accumulated Amortization | (171,856) | (137,108)
Amortizable Intangible Assets, Net Carrying Amount | 96,479 | 112,853
Amortizable Intangible Liabilities |  |
Amortizable Intangible Liabilities, Net Carrying Amount | (71,719) |
Above-market rent |  |
Finite-Lived Intangible Assets [Line Items] |  |
Amortizable Intangible Assets, Gross Carrying Amount | 19,188 | 17,227
Amortizable Intangible Assets, Accumulated Amortization | (14,935) | (13,260)
Amortizable Intangible Assets, Net Carrying Amount | $ 4,253 | $ 3,967

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