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Lease Intangibles - Scheduled Amortization of Acquired Lease Intangible Assets and Assumed Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
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Acquired Lease Intangibles [Abstract] |  |
Amortizable Intangible Assets, Net Carrying Amount | $ 119,002 | $ 114,584
2017 (Remainder), Increase to Amortization | (25,081) |
2018, Increase to Amortization | (18,466) |
2019, Increase to Amortization | (14,273) |
2020, Increase to Amortization | (11,760) |
2021, Increase to Amortization | (9,304) |
Thereafter, Increase to Amortization | (34,517) |
Total, Increase to Amortization | (113,401) |
2017 (Remainder), Net | (15,531) |
2018, Net | (8,801) |
2019, Net | (5,122) |
2020, Net | (3,994) |
2021, Net | (2,234) |
Thereafter, Net | 20,660 |
Total | (15,022) |
Net Increase in Lease Revenues |  |
Acquired Lease Intangibles [Abstract] |  |
2017 (Remainder) | 9,492 |
2018 | 9,607 |
2019 | 9,093 |
2020 | 7,708 |
2021 | 7,012 |
Thereafter | 54,800 |
Amortizable Intangible Assets, Net Carrying Amount | 97,712 |
Reduction of Rent Expense |  |
Acquired Lease Intangibles [Abstract] |  |
2017 (Remainder) | 58 |
2018 | 58 |
2019 | 58 |
2020 | 58 |
2021 | 58 |
Thereafter | 377 |
Amortizable Intangible Assets, Net Carrying Amount | $ 667 |

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