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12. Restructuring Costs (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	7 Months Ended	26 Months Ended
12. Restructuring Costs (Details) - USD ($) $ in Millions	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
European Reorganization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 4.2	$ 4.2	$ 4.2	$ 4.2	$ 6.3
Restructuring Charges		0.0		12.9
Restructuring Reserve, Current	4.1	4.1	4.1	4.1
Restructuring Reserve, Noncurrent	0.1	0.1	0.1	0.1
Restructuring Reserve, Accrual Adjustment		(0.1)
Payments for Restructuring		(1.9)
Restructuring Reserve, Foreign Currency Translation (Gain) Loss		(0.1)
European Reorganization [Member] \| Cost of Goods, Total [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment		(0.1)
European Reorganization [Member] \| Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment		(0.1)
European Reorganization [Member] \| Life Science [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1.6	1.6	1.6	1.6	2.2
Restructuring Charges		0.0
Restructuring Reserve, Accrual Adjustment		0.0
Payments for Restructuring		(0.6)
Restructuring Reserve, Foreign Currency Translation (Gain) Loss		0.0
European Reorganization [Member] \| Clinical Diagnostics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	2.6	2.6	2.6	2.6	4.1
Restructuring Charges		0.0
Restructuring Reserve, Accrual Adjustment		(0.1)
Payments for Restructuring		(1.3)
Restructuring Reserve, Foreign Currency Translation (Gain) Loss		(0.1)
Termination of a Diagnostics Research and Development Project [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			20.4
Restructuring Reserve, Accrual Adjustment	(0.6)	(0.7)
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		1.3
Termination of a Diagnostics Research and Development Project and a Facility Closure [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	11.7	11.7	11.7	11.7	$ 14.1
Restructuring Charges		1.3
Restructuring Reserve, Accrual Adjustment		(0.7)
Payments for Restructuring		(2.7)
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	1.3	1.3
Termination of a Diagnostics Research and Development Project and a Facility Closure [Member] \| Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment	(0.3)	(0.1)
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	(0.3)	(0.6)
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
Termination of a Diagnostics Research and Development Project and a Facility Closure [Member] \| Other Current Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Current	3.2	3.2	3.2	3.2
Termination of a Diagnostics Research and Development Project and a Facility Closure [Member] \| Other Noncurrent Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Noncurrent	$ 1.3	$ 1.3	$ 1.3	$ 1.3