Divestitures (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Long Lived Assets and Liabilities Held-for-sale [Line Items]
Loss on assets and liabilities held for sale	$ 2.3	$ 0.0	$ (113.2)	$ 0.0
Denmark Manufacturing Operations
Long Lived Assets and Liabilities Held-for-sale [Line Items]
Property, plant and equipment	641.9		641.9
Operating lease assets	2.2		2.2
Goodwill	69.5		69.5
Other assets	62.4		62.4
Loss on assets and liabilities held for sale			(113.2)
Assets held for sale	683.4		683.4
Accrued expenses and other liabilities	33.4		33.4
Operating lease liabilities	2.2		2.2
Deferred tax liability	53.8		53.8
Liabilities held for sale	88.6		88.6
Long-term operating lease liabilities | Denmark Manufacturing Operations
Long Lived Assets and Liabilities Held-for-sale [Line Items]
Operating lease liabilities	$ 1.4		$ 1.4