Discontinued Operations - Income from Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Summarized Financial Information of Discontinued Operations
Income from discontinued operations, net of tax	$ 0.0	$ 2.4	$ 0.0	$ 4.0
Disposed of by Sale \| BioMedical
Summarized Financial Information of Discontinued Operations
Sales		42.0		77.6
Cost of sales		30.4		55.8
Selling, general and administrative expenses		7.1		14.6
Amortization expense		0.6		1.2
Operating income		3.9		6.0
Other loss, net		(0.4)		(0.2)
Income before income taxes		3.5		5.8
Income tax expense		1.1		1.8
Income from discontinued operations, net of tax		2.4		4.0
Depreciation expense, discontinued operations		$ 0.5		$ 0.9

Disposal Group, Including Discontinued Operations, Amortization

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Disposal Group, Including Discontinued Operations, Depreciation

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Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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