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Goodwill (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2019
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill, Acquired During Period $ 462,970
Goodwill [Roll Forward]  
Beginning Balance 904,571
Goodwill, Translation Adjustments (12,746)
Ending Balance $ 1,354,795