Goodwill and Other Intangible Assets - Table 3 (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Amortization Expense, Intangible Assets
Amortization expense	$ 36.0	$ 20.3	$ 17.3