Goodwill, Finite-Lived, and Indefinite-Lived Intangibles Goodwill (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning Balance	$ 952,404	$ 946,685
Goodwill, Acquired During Period	7,563	17,931
Goodwill, Purchase Accounting Adjustments	46	741
Goodwill, Foreign Currency Translation Gain (Loss)	(34,658)	(12,953)
Ending balance	$ 925,355	$ 952,404