XML 54 R45.htm IDEA: XBRL DOCUMENT v3.19.1
Revenues (Narrative) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Revenue from Contract with Customer [Abstract]  
Increase (decrease) in contract with customer assets $ (2,798)
Increase (decrease) in contract with customer liabilities 845
Revenue recognized $ 7,700