Business Segment Information Business Segments Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Gain (loss) on sale/asset impairment	$ 0		$ 0.3
Hussmann Divestiture [Member]
Gain (loss) on sale/asset impairment	$ 0	[1]	$ 0.3	[1]

[1] During the three months ended March 31, 2012, the Company recorded $0.3 million of purchase price adjustments related to the 2011 Hussmann sale. These amounts have been excluded from Segment operating income within the Climate Solutions segment as management excludes these charges from Operating income when making operating decisions about the business.