Contingencies (Details) $ in Millions	1 Months Ended	9 Months Ended	12 Months Ended
	Aug. 31, 2013 USD ($)	Sep. 30, 2015 USD ($) claim site	Dec. 31, 2014 USD ($) claim	Dec. 31, 2008 USD ($)
Accrual for environmental loss contingencies [Abstract]
Waste disposal sites with potential liability under the Comprehensive Environmental Response, Compensation and Liability Act | site		26
Accrual for indicated environmental liabilities		$ 4.9	$ 6.2
Timeframe most environmental liabilities will be paid out		5
Contingencies [Abstract]
Loss as a result of the September 2008 DTP ruling				$ 4.0
Asbestos Issue [Member]
Contingencies [Abstract]
Number of pending claims | claim		11,700	13,300
Loss Contingency, Claims Settled and Dismissed, Number | claim		3,200	6,500
Payment being made to a claimant by or on behalf of the company | claim		262	397
Payment being made to a claimant by or on behalf of the company, percentage		8.00%	6.00%
Damages awarded	$ 35.0
Company paid in defense and indemnity in advance of insurers reimbursement		$ 378.6
Cash and notes received from insurers		228.4
Outstanding balance to be fully recovered		150.2	$ 141.9
Assets:
Other non-current assets		111.9	111.8
Total insurance assets		111.9	111.8
Liabilities:
Accounts payable and accrued expenses		48.6	47.4
Other non-current liabilities		63.3	64.4
Total accrued liabilities		$ 111.9	$ 111.8
Non-Compensatory Damages [Member]
Contingencies [Abstract]
Damages awarded	$ 32.5