Restructuring Expenses and Repositioning Expenses - Expenses and Asset Impairments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Restructuring and Related Activities [Abstract]
Restructuring expenses	$ 7.9	$ 1.1	$ 16.4	$ 6.3
Total restructuring expenses	$ 7.9	$ 1.1	$ 16.4	$ 6.3