Discontinued Operations (Details) - USD ($) $ in Millions		1 Months Ended	12 Months Ended
	Mar. 22, 2013	Apr. 30, 2012	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax operating income (loss)			$ (1.0)	$ (3.7)	$ (13.3)
Service Experts [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business	$ 10.4
Net sales			0.0	0.0	73.5
Pre-tax operating income (loss)			(0.4)	2.6	(15.1)
Gain (loss) on sale of business			0.0	0.0	1.4
Hearth [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business		$ 10.1
Net sales			0.0	0.0	0.0
Pre-tax operating income (loss)			(0.3)	(6.3)	0.5
Gain (loss) on sale of business			$ 0.0	$ 0.0	$ 0.0