Restructuring Charges (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended				12 Months Ended				3 Months Ended	12 Months Ended		3 Months Ended	12 Months Ended				3 Months Ended		12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Liabilities of Discontinued Operations [Member]	Sep. 30, 2011 Corporate and Other [Member]	Dec. 31, 2012 Plant Closure Costs [Member] Refrigeration [Member] Contract Coil [Member]	Dec. 31, 2012 Employee Severance [Member] Refrigeration [Member] Contract Coil [Member]	Sep. 30, 2011 Employee Severance [Member] Corporate and Other [Member]	Dec. 31, 2012 Employee Severance [Member] Service Experts Business [Member] Loss from Discontinued Operations [Member]	Dec. 31, 2012 Lease termination [Member]	Dec. 31, 2011 Lease termination [Member]	Dec. 31, 2010 Lease termination [Member]	Sep. 30, 2011 Lease termination [Member] Corporate and Other [Member]	Mar. 31, 2012 Lease termination [Member] Regional Distribution Network [Member]	Dec. 31, 2012 Lease termination [Member] Regional Distribution Network [Member]
Restructuring Charges (Textual) [Line Items]
Restructuring charges	$ 1.2	$ 8.0	$ 1.0	$ 2.3	$ 4.2	$ 12.5	$ 11.4			$ 0.6			$ 1.1	$ 2.4	$ 4.1		$ 4.3	$ 2.6	$ 2.7
Restructuring Reserve	2.4				2.4	2.4	4.1	0.2			0.3			1.2	0	0.2
Severance Costs												1.1
Accelerated Depreciation									$ 0.4