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

Goodwill and Other Intangible Assets (Schedule of Other Intangible Assets) (Details)

v3.20.2
Goodwill and Other Intangible Assets (Schedule of Other Intangible Assets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 456,026 $ 461,799
Accumulated Amortization (380,388) (374,471)
Net Book Value 75,638 87,328
Developed technology [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 294,105 299,100
Accumulated Amortization (254,881) (252,136)
Net Book Value 39,224 46,964
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 15,839 15,142
Accumulated Amortization (7,768) (7,067)
Net Book Value 8,071 8,075
Trademarks and trade names [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 26,004 25,991
Accumulated Amortization (20,544) (19,966)
Net Book Value 5,460 6,025
Customer relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 101,589 102,936
Accumulated Amortization (78,706) (76,813)
Net Book Value 22,883 26,123
Capitalized software development costs [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 18,489 18,630
Accumulated Amortization (18,489) (18,489)
Net Book Value $ 141