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Lease Intangibles - Scheduled Amortization (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
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Acquired Lease Intangibles [Abstract] |  |
Amortizable Intangible Assets, Net Carrying Amount | $ (125,050) | $ (127,571)
In-place lease intangible assets |  |
Acquired Lease Intangibles [Abstract] |  |
2018 (Remainder), Net Increase In Lease Revenues | 6,219 |
2019, Net Increase In Lease Revenues | 9,596 |
2020, Net Increase In Lease Revenues | 8,830 |
2021, Net Increase In Lease Revenues | 7,650 |
2022, Net Increase In Lease Revenues | 7,353 |
Thereafter, Net Increase In Lease Revenues | 57,431 |
Net Increase In Lease Revenues, Total | 97,079 |
2018 (Remainder), Increase to Amortization | (19,544) |
2019, Increase to Amortization | (23,316) |
2020, Increase to Amortization | (17,389) |
2021, Increase to Amortization | (12,760) |
2022, Increase to Amortization | (8,949) |
Thereafter, Increase to Amortization | (36,520) |
Amortizable Intangible Assets, Net Carrying Amount | (118,478) | $ (121,072)
2018 (Remainder), Reduction of Rent Expense | 44 |
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 | 346 |
Reduction of Rent Expense, Total | 622 |
2018 (Remainder), Net Income (Expense) | (13,281) |
2019, Net Income (Expense) | (13,662) |
2020, Net Income (Expense) | (8,501) |
2021, Net Income (Expense) | (5,052) |
2022, Net Income (Expense) | (1,538) |
Thereafter, Net Income (Expense) | 21,257 |
Total, Net Income (Expense) | $ (20,777) |

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