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Business Acquisition - Purchase Price Allocation (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	May 02, 2016	Dec. 31, 2015
Business Acquisition [Line Items]
Goodwill	$ 764.7	$ 762.3		$ 678.4
Medsystems Holdings, Inc.
Business Acquisition [Line Items]
Current assets acquired net of liabilities assumed			$ 14.1
Property, plant and equipment			4.4
Identifiable intangible assets, excluding IPR&D			105.1
Deferred tax liabilities			(38.4)
Goodwill			84.1
Total			175.0
Medsystems Holdings, Inc. | IPR&D
Business Acquisition [Line Items]
Identifiable IPR&D			$ 5.7

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Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date.

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