Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property Plant And Equipment Useful Life And Values [Abstract]
Land	$ 21.7	$ 22.1
Building and equipment	1,353.1	1,232.8
Capitalized software costs	272.6	241.8
Instruments	1,610.6	1,579.8
Construction in progress	58.2	117.8
Property, plant and equipment, Gross	3,316.2	3,194.3
Accumulated depreciation	(2,091.5)	(1,983.6)
Property, plant and equipment, net	$ 1,224.7	$ 1,210.7	$ 1,207.3