Other - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Restructuring and Related Activities [Abstract]
Reorganization, Restatement, and Other Non-Recurring Cost	$ 13.2	$ 1.0	$ 15.6	$ 1.2