Acquisitions and Dispositions (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended			12 Months Ended			3 Months Ended	1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2012 Y	Mar. 31, 2011 Y	Mar. 31, 2012 Cleantec	Dec. 31, 2010 Cleantec	Dec. 31, 2012 Esoform	Dec. 31, 2012 InsetCenter	Mar. 31, 2011 U.S. Cleaning and Sanitizing Cleantec	Mar. 31, 2011 U.S. Cleaning and Sanitizing O.R. Solutions, Inc.	Mar. 31, 2011 U.S. Cleaning and Sanitizing O.R. Solutions, Inc.	Dec. 31, 2011 U.S. Cleaning and Sanitizing O.R. Solutions, Inc.
Components of the aggregate purchase prices of the acquisitions and investment in affiliates:
Net tangible assets acquired (liabilities assumed)	$ 1.7	$ 53.9
Identifiable intangible assets
Customer relationships	2.3	142.8
Trademarks	0.1	11.2
Patents	2.8	0.3
Other technology	0.2	9.1
Total	5.4	163.4
Goodwill	14.2	88.3
Total aggregate purchase price	21.3	305.6		43.0				260.0
Contingent consideration	(2.6)
Liability for indemnification	(0.8)	(28.1)	(2.0)							(26.0)
Net cash paid for acquisitions	17.9	277.5
Weighted average useful lives of identifiable intangible assets acquired (in years)	12	14
Estimated annual sales pre-acquisition					$ 12	$ 6	$ 55		$ 55