Financial Instruments - Schedule of Fair Value Measurements (Details) - Recurring - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Asset Category
Total	$ 10.3	$ 8.4
Liability Category
Total	59.5	84.2
Other current assets | Level 2 | Foreign exchange and metals contracts not designated as hedging instruments | Not Designated as Hedging Instrument
Asset Category
Derivatives	0.9	2.0
Other assets | Level 2
Asset Category
Interest rate swaps designated as cash flow hedging instruments	0.0	0.6
Other assets | Level 2 | Designated as Hedging Instrument
Asset Category
Derivatives	2.6	3.4
Interest rate swaps designated as cash flow hedging instruments	6.5	0.0
Other assets | Level 1
Asset Category
Interest rate swaps designated as cash flow hedging instruments	0.3	2.4
Accrued expenses and other liabilities | Level 2 | Foreign exchange and metals contracts not designated as hedging instruments | Not Designated as Hedging Instrument
Liability Category
Derivatives	1.2	1.4
Accrued expenses and other liabilities | Level 2 | Interest rate swaps designated as cash flow hedging instruments | Designated as Hedging Instrument
Liability Category
Derivatives	0.6	2.8
Other liabilities | Level 2 | Interest rate swaps designated as cash flow hedging instruments | Designated as Hedging Instrument
Liability Category
Derivatives	0.3	0.8
Contingent consideration | Level 3
Liability Category
Long-term contingent consideration	$ 57.4	$ 79.2