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12. Restructuring Costs (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	10 Months Ended	29 Months Ended
12. Restructuring Costs (Details) - USD ($) $ in Millions	Sep. 30, 2018	Sep. 30, 2018	Sep. 30, 2018	Sep. 30, 2018	Dec. 31, 2017
European Reorganization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 2.0	$ 2.0	$ 2.0	$ 2.0	$ 6.3
Restructuring Charges				13.0
Payments for Restructuring		(4.2)
Restructuring Reserve, Foreign Currency Translation (Gain) Loss		(0.1)
European Reorganization [Member] \| Life Science [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.7	0.7	0.7	0.7	2.2
Payments for Restructuring		(1.5)
Restructuring Reserve, Foreign Currency Translation (Gain) Loss		0.0
European Reorganization [Member] \| Clinical Diagnostics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1.3	1.3	1.3	1.3	4.1
Payments for Restructuring		(2.7)
Restructuring Reserve, Foreign Currency Translation (Gain) Loss		(0.1)
European Reorganization [Member] \| Accounts Payable and Accrued Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Current	2.0	2.0	2.0	2.0
Termination of a Diagnostics Research and Development Project [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			19.9
Restructuring Reserve, Accrual Adjustment	(0.6)	(1.2)
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0.0	1.3
Termination of a Diagnostics Research and Development Project and a Facility Closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	7.2	7.2	7.2	7.2	$ 14.1
Restructuring Charges		1.3
Restructuring Reserve, Accrual Adjustment		(1.2)
Payments for Restructuring		(6.7)
Restructuring Reserve, Foreign Currency Translation (Gain) Loss		(0.3)
Termination of a Diagnostics Research and Development Project and a Facility Closure [Member] \| Cost of Goods, Total [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0.0	1.3
Termination of a Diagnostics Research and Development Project and a Facility Closure [Member] \| Research and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment	(0.5)	(1.2)
Termination of a Diagnostics Research and Development Project and a Facility Closure [Member] \| Accounts Payable and Accrued Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Current	$ 7.2	$ 7.2	$ 7.2	$ 7.2