Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Revenues (Schedule of Disaggregation of Revenues Based on Time) (Details)

v3.20.1
Revenues (Schedule of Disaggregation of Revenues Based on Time) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Disaggregation of Revenue [Line Items]    
Total Revenues $ 132,907 $ 155,300
Revenues recognized in point in time [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 93,816 136,526
Revenues recognized over time [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 39,091 18,774
Products [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 83,172 105,091
Products [Member] | Revenues recognized in point in time [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 83,172 105,091
Services [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 49,735 50,209
Services [Member] | Revenues recognized in point in time [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 10,644 31,435
Services [Member] | Revenues recognized over time [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues $ 39,091 $ 18,774