New Accounting Standards Narrative (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2019
Accounting Standards Update and Change in Accounting Principle [Abstract]
Provision for doubtful accounts	$ 3.2	$ 11.3	$ 3.4