Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Property Plant And Equipment Useful Life And Values [Abstract]
Land	$ 21.7	$ 21.7
Buildings and equipment	1,356.1	1,353.1
Capitalized software costs	278.2	272.6
Instruments	1,646.9	1,610.6
Construction in progress	75.1	58.2
Property, plant and equipment, Gross	3,378.0	3,316.2
Accumulated depreciation	(2,142.4)	(2,091.5)
Property, plant and equipment, net	$ 1,235.6	$ 1,224.7