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Fair Value Measurements - Schedule Fair Value Measurements Inputs (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
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Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate swap assets | $ 652 | $ 1,065
Fair Value, Measurements, Recurring [Member] | Fair Value Measurements Using Level 1 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate swap assets | 0 | 0
Fair Value, Measurements, Recurring [Member] | Fair Value Measurements Using Level 2 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate swap assets | 652 | 1,065
Fair Value, Measurements, Recurring [Member] | Fair Value Measurements Using Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate swap assets | 0 | 0
Fair Value, Measurements, Nonrecurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired real estate assets | 41,519 | 7,829
Impaired properties held for sale | 67,930 |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value Measurements Using Level 1 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired real estate assets | 0 | 0
Impaired properties held for sale | 0 |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value Measurements Using Level 2 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired real estate assets | 0 | 0
Impaired properties held for sale | 15,605 |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value Measurements Using Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired real estate assets | 41,519 | $ 7,829
Impaired properties held for sale | 52,325 |
LCIF [Member] | Fair Value, Measurements, Nonrecurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired real estate assets | 16,345 |
LCIF [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value Measurements Using Level 1 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired real estate assets | 0 |
LCIF [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value Measurements Using Level 2 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired real estate assets | 0 |
LCIF [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value Measurements Using Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Impaired real estate assets | $ 16,345 |

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- Definition Assets Held-for-sale, Long Lived, Impaired, Fair Value Disclosure + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets. + References No definition available. + Details
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