Acquisitions (Details) - USD ($) $ in Millions	Nov. 04, 2016	Mar. 31, 2016	Feb. 08, 2016	Dec. 17, 2015
Wallace [Member]
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition	Nov. 04, 2016
Total purchase consideration	$ 167.4
Identifiable intangible assets	72.2
Goodwill, acquired during period	94.8
Recognized identifiable assets (liabilities)	0.4
Genesis Genetics [Member]
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition		Mar. 31, 2016
Total purchase consideration		$ 61.1
Identifiable intangible assets		28.6
Goodwill, acquired during period		28.7
Recognized identifiable assets (liabilities)		3.8
Payments to acquire businesses, net of cash acquired		60.5
The Pipette Company [Member]
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition			Feb. 08, 2016
Total purchase consideration			$ 20.2
Identifiable intangible assets			5.6
Goodwill, acquired during period			15.0
Recognized identifiable assets (liabilities)			(0.4)
Payments to acquire businesses, net of cash acquired			19.6
Research Instruments [Member]
Business Acquisition [Line Items]
Business acquisition, effective date of acquisition				Dec. 17, 2015
Total purchase consideration				$ 53.6
Identifiable intangible assets				10.3
Goodwill, acquired during period				35.8
Recognized identifiable assets (liabilities)				7.6
Payments to acquire businesses, net of cash acquired				50.0
Technology | Wallace [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	66.5
Technology | Research Instruments [Member]
Business Acquisition [Line Items]
Identifiable intangible assets				6.2
Trade Names [Member] | Wallace [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	3.2
Trade Names [Member] | Genesis Genetics [Member]
Business Acquisition [Line Items]
Identifiable intangible assets		3.4
Trade Names [Member] | The Pipette Company [Member]
Business Acquisition [Line Items]
Identifiable intangible assets			0.4
Trade Names [Member] | Research Instruments [Member]
Business Acquisition [Line Items]
Identifiable intangible assets				2.2
Customer relationships | Wallace [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	$ 2.5
Customer relationships | Genesis Genetics [Member]
Business Acquisition [Line Items]
Identifiable intangible assets		$ 25.2
Customer relationships | The Pipette Company [Member]
Business Acquisition [Line Items]
Identifiable intangible assets			$ 5.2
Customer relationships | Research Instruments [Member]
Business Acquisition [Line Items]
Identifiable intangible assets				$ 1.9