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

Revenues (Details) - Schedule of disaggregated based on the timing of revenue recognition

v3.20.2
Revenues (Details) - Schedule of disaggregated based on the timing of revenue recognition - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Revenues (Details) - Schedule of disaggregated based on the timing of revenue recognition [Line Items]        
Total Revenues $ 127,892 $ 157,460 $ 378,422 $ 475,923
Products [Member]        
Revenues (Details) - Schedule of disaggregated based on the timing of revenue recognition [Line Items]        
Total Revenues 83,548 106,346 240,597 321,778
Services [Member]        
Revenues (Details) - Schedule of disaggregated based on the timing of revenue recognition [Line Items]        
Total Revenues 44,344 51,114 137,825 154,145
Revenues recognized in point in time [Member]        
Revenues (Details) - Schedule of disaggregated based on the timing of revenue recognition [Line Items]        
Total Revenues 93,935 117,503 270,406 354,309
Revenues recognized in point in time [Member] | Products [Member]        
Revenues (Details) - Schedule of disaggregated based on the timing of revenue recognition [Line Items]        
Total Revenues 83,548 106,346 240,597 321,778
Revenues recognized in point in time [Member] | Services [Member]        
Revenues (Details) - Schedule of disaggregated based on the timing of revenue recognition [Line Items]        
Total Revenues 10,387 11,157 29,809 32,531
Revenues recognized over time [Member]        
Revenues (Details) - Schedule of disaggregated based on the timing of revenue recognition [Line Items]        
Total Revenues 33,957 39,957 108,016 121,614
Revenues recognized over time [Member] | Services [Member]        
Revenues (Details) - Schedule of disaggregated based on the timing of revenue recognition [Line Items]        
Total Revenues $ 33,957 $ 39,957 $ 108,016 $ 121,614