Goodwill (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning balance	$ 234,500,000
Effect of foreign currency translation	(200,000)
Ending balance	234,300,000	$ 234,500,000
Goodwill impairment	$ 0	$ 0