Discontinued Operations Discontinued Operations - Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	$ 404.5	$ 399.2	$ 1,157.8	$ 1,203.4
Cost of goods sold	236.3	233.1	663.7	722.5
Gross profit	168.2	166.1	494.1	480.9
Selling, general and administrative expenses	67.1	70.5	201.5	221.0
Research and development expenses	12.1	11.8	36.2	36.2
Repositioning expenses	3.8	2.7	10.4	6.1
Interest expense and related financing costs	19.8	25.2	61.6	74.5
Other expense, net	(0.5)	1.5	13.3	(4.7)
Total costs and expenses	107.5	114.8	342.6	331.4
Net (loss) income from discontinued operations	$ (1.6)	$ (19.9)	(10.9)	27.4
Grace Construction Products | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales			99.6	1,089.4
Cost of goods sold			62.6	689.5
Gross profit			37.0	399.9
Selling, general and administrative expenses			21.6	184.3
Research and development expenses			1.7	17.0
Loss in Venezuela			0.0	60.8
Repositioning expenses			22.0	28.2
Interest expense and related financing costs			0.7	1.1
Other expense, net			4.4	11.2
Total costs and expenses			50.4	302.6
(Loss) Income from discontinued operations before income taxes			(13.4)	97.3
Benefit from (provision for) income taxes			2.6	(69.3)
(Loss) Income from discontinued operations after income taxes			(10.8)	28.0
Less: Net income attributable to noncontrolling interests			(0.1)	(0.6)
Net (loss) income from discontinued operations			$ (10.9)	$ 27.4