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Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] |  |  |  |
Amortization of Deferred Charges | $ 5,130 | $ 2,907 | $ 14,114 | $ 8,466
Credit Facility Financing Costs [Member] |  |  |  |
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] |  |  |  |
Amortization of Deferred Charges | 133 | 102 | 335 | 304
Leasing Costs [Member] |  |  |  |
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] |  |  |  |
Amortization of Deferred Charges | 82 | 40 | 166 | 120
Lease Intangibles (Assets) [Member] |  |  |  |
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] |  |  |  |
Amortization of Deferred Charges | 5,998 | 3,802 | 16,781 | 11,209
Lease Intangibles (Liability) [Member] |  |  |  |
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] |  |  |  |
Amortization of Below Market Lease | $ (1,083) | $ (1,037) | $ (3,168) | $ (3,167)

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