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Acquisition of BioSuite, LLC - Schedule of Total Purchase Price and Estimated Allocation of Purchase Price to Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	May 31, 2018	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill		$ 7.5
BioSuite LLC [Member]
Business Acquisition [Line Items]
Goodwill	$ 7.5
Receivables	0.4
Inventory	0.5
Payables	(1.9)
Extinguishment of existing liabilities	2.1
Purchase price, net of cash acquired	$ 8.6

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