Discontinued Operations - Assets and Liabilities of Discontinued Operations (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Current assets of discontinued operations	$ 0.0	$ 66.7
Non-current assets of discontinued operations	0.0	38.2
Current liabilities of discontinued operations	0.0	15.9
Non-current liabilities of discontinued operations	$ 0.0	2.6
Held-for-sale | BioMedical
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Accounts receivable, net		26.3
Inventories, net		35.2
Unbilled contract revenue		0.5
Prepaid expenses		1.0
Deferred income taxes		3.7
Current assets of discontinued operations		66.7
Property, plant, and equipment, net		12.6
Goodwill		9.1
Identifiable intangible assets, net		16.1
Other assets		0.4
Non-current assets of discontinued operations		38.2
Accounts payable		8.6
Customer advances and billings in excess of contract revenue		0.6
Accrued salaries, wages, and benefits		2.7
Current portion of warranty reserve		2.6
Other current liabilities		1.4
Current liabilities of discontinued operations		15.9
Long-term deferred tax liabilities		0.4
Other long-term liabilities		2.2
Non-current liabilities of discontinued operations		$ 2.6