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Interest Rate Swap Liability (Details)
$ in Thousands
Dec. 31, 2017
USD ($)
Derivatives, Fair Value [Line Items]  
Weighted Average Interest Pay Rate 4.11%
Interest Rate Swap | Level 2 | Other Liabilities  
Derivatives, Fair Value [Line Items]  
Weighted Average Interest Pay Rate 4.11%
Fair Value $ (894)
Notional Amount $ 66,046