Annual report pursuant to Section 13 and 15(d)

Financial Instruments Financial Instruments (Details 1)

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Financial Instruments Financial Instruments (Details 1) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Nov. 03, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset   $ 1,623 $ 734  
Derivative, Fixed Interest Rate 4.25%     1.74685%