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

Revenues (Schedule of Disaggregation of Revenues) (Details)

v3.20.1
Revenues (Schedule of Disaggregation of Revenues) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Disaggregation of Revenue [Line Items]    
Total Revenues $ 132,907 $ 155,300
Products [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
Americas [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 86,573 96,498
Americas [Member] | Products [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 48,244 58,054
Americas [Member] | Services [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 38,329 38,444
EMEA [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 26,920 34,783
EMEA [Member] | Products [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 20,747 28,085
EMEA [Member] | Services [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 6,173 6,698
Asia Pacific [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 19,414 24,019
Asia Pacific [Member] | Products [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues 14,181 18,952
Asia Pacific [Member] | Services [Member]    
Disaggregation of Revenue [Line Items]    
Total Revenues $ 5,233 $ 5,067