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

Revenues (Schedule of Disaggregation of Revenues) (Details)

v3.20.2
Revenues (Schedule of Disaggregation of Revenues) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Disaggregation of Revenue [Line Items]        
Total Revenues $ 117,623 $ 163,163 $ 250,530 $ 318,463
Products [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenues 73,877 110,341 157,049 215,432
Services [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenues 43,746 52,822 93,481 103,031
Americas [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenues 78,701 108,025 165,274 204,523
Americas [Member] | Products [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenues 44,800 67,137 93,044 125,191
Americas [Member] | Services [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenues 33,901 40,888 72,230 79,332
EMEA [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenues 20,915 30,149 47,835 64,932
EMEA [Member] | Products [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenues 15,743 23,323 36,490 51,408
EMEA [Member] | Services [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenues 5,172 6,826 11,345 13,524
Asia Pacific [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenues 18,007 24,989 37,421 49,008
Asia Pacific [Member] | Products [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenues 13,334 19,881 27,515 38,833
Asia Pacific [Member] | Services [Member]        
Disaggregation of Revenue [Line Items]        
Total Revenues $ 4,673 $ 5,108 $ 9,906 $ 10,175