XML 86 R64.htm IDEA: XBRL DOCUMENT v3.19.2
Derivative Financial Instruments - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Derivative Instruments Liabilities [Member] - Recurring [Member] - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Liabilities [Abstract]    
Total Liabilities $ 33 $ 560
Level 3 [Member]    
Liabilities [Abstract]    
Total Liabilities $ 33 $ 560