XML 103 R88.htm IDEA: XBRL DOCUMENT v3.8.0.1
Employee Benefit Plans - Schedule of Amounts Recognized in Balance Sheet (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Amounts recognized in the balance sheet consist of:    
Non-current liability $ (15,773) $ (16,240)
Net amount recognized $ 15,773 $ 16,240