Reportable Business Segments (Assets by Segment) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Assets for continuing operations	$ 1,680.2	$ 1,764.3	$ 1,626.7
Discontinued operations (See Note 17)	0.0	0.0	0.0
Total assets	1,680.2	1,764.3	1,626.7
Residential Heating and Cooling [Member]
Segment Reporting Information [Line Items]
Total assets	628.3	632.3	500.0
Commercial Heating and Cooling [Member]
Segment Reporting Information [Line Items]
Total assets	363.6	353.4	346.3
Refrigeration [Member]
Segment Reporting Information [Line Items]
Total assets	444.9	551.5	572.0
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Total assets	$ 243.4	$ 227.1	$ 208.4