Discontinued Operations - Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		15 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received upon sale of discontinued operations					$ 72.0
Earnings before interest and income taxes	$ 31.8	$ 2.2	$ 31.9	$ 1.8
Income tax expense	(11.5)	(0.4)	(11.5)	(0.5)
Earnings from discontinued operations, net of tax	20.3	1.8	20.4	1.3
Commercial Products | Commercial Products - Store Fixtures
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total External Sales	0.0	6.1	0.0	12.3
Earnings before interest and income taxes	0.4	2.9	0.5	3.3
Subsequent activity related to previous divestitures
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Earnings before interest and income taxes	$ 31.4	$ (0.7)	$ 31.4	$ (1.5)