Reportable Business Segments (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	$ 274.3	$ 201.7	$ 167.3
Total assets by business segment
Total assets, excluding discontinued operations	1,626.7	1,593.3	1,545.2
Total assets, discontinued operations	0	98.6	160.5
Total assets	1,626.7	1,691.9	1,705.7
Residential Heating and Cooling [Member]
Total assets by business segment
Total assets	500.0	457.5	453.2
Commercial Heating and Cooling [Member]
Total assets by business segment
Total assets	346.3	321.9	306.4
Refrigeration [Member]
Total assets by business segment
Total assets	572.0	585.3	558.2
Corporate and Other [Member]
Total assets by business segment
Total assets	$ 208.4	$ 228.6	$ 227.4