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Lease Intangibles - Scheduled Amortization (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
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Acquired Lease Intangibles [Abstract] |  |
Amortizable Intangible Assets, Net Carrying Amount | $ (114,982) | $ (127,571)
In-place lease intangible assets |  |
Acquired Lease Intangibles [Abstract] |  |
2018 (Remainder), Net Increase In Lease Revenues | 3,114 |
2019, Net Increase In Lease Revenues | 9,633 |
2020, Net Increase In Lease Revenues | 8,853 |
2021, Net Increase In Lease Revenues | 7,670 |
2022, Net Increase In Lease Revenues | 7,373 |
Thereafter, Net Increase In Lease Revenues | 57,118 |
Net Increase In Lease Revenues, Total | 93,761 |
2018 (Remainder), Increase to Amortization | (8,035) |
2019, Increase to Amortization | (23,201) |
2020, Increase to Amortization | (17,244) |
2021, Increase to Amortization | (12,653) |
2022, Increase to Amortization | (8,863) |
Thereafter, Increase to Amortization | (39,317) |
Amortizable Intangible Assets, Net Carrying Amount | (109,313) | $ (121,072)
2018 (Remainder), Reduction of Rent Expense | 29 |
2019, Reduction of Rent Expense | 58 |
2020, Reduction of Rent Expense | 58 |
2021, Reduction of Rent Expense | 58 |
2022, Reduction of Rent Expense | 58 |
Thereafter, Reduction of Rent Expense | 347 |
Reduction of Rent Expense, Total | 608 |
2018 (Remainder), Net Income (Expense) | (4,892) |
2019, Net Income (Expense) | (13,510) |
2020, Net Income (Expense) | (8,333) |
2021, Net Income (Expense) | (4,925) |
2022, Net Income (Expense) | (1,432) |
Thereafter, Net Income (Expense) | 18,148 |
Total, Net Income (Expense) | $ (14,944) |

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