Discontinued Operations - Income from Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Summarized Financial Information of Discontinued Operations
Income from discontinued operations, net of tax	$ 0.0	$ 6.1	$ 0.0	$ 18.9
Disposed of by held for sale
Summarized Financial Information of Discontinued Operations
Depreciation expense, discontinued operations		0.2		0.8
Disposed of by held for sale \| Cryobiological products business
Summarized Financial Information of Discontinued Operations
Sales		19.4		59.5
Cost of sales		9.5		31.4
Selling, general and administrative expenses		1.4		4.3
Operating income		8.5		23.8
Other expenses (income), net		0.2
Other expenses (income), net				(0.1)
Income before income taxes from discontinued operations		8.3		23.9
Income tax expense		2.2		5.0
Income from discontinued operations, net of tax		$ 6.1		$ 18.9
Effective interest rate (percent)		26.50%		20.90%

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