Contingencies (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended		3 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended
	Sep. 30, 2013	Dec. 31, 2008	Dec. 31, 2012	Sep. 30, 2013 Asbestos Issue [Member]	Sep. 30, 2013 Asbestos Issue [Member]	Dec. 31, 2012 Asbestos Issue [Member]	Sep. 30, 2013 Compensatory Damages [Member]
Accrual for environmental loss contingencies [Abstract]
Waste disposal sites with potential liability under the Comprehensive Environmental Response, Compensation and Liability Act	32
Accrual for indicated environmental liabilities	$ 4.7		$ 3.9
Timeframe most environmental liabilities will be paid out	5
Contingencies [Abstract]
Loss as a result of the September 2008 DTP ruling		4.0
Number of pending claims				16,000	16,000	16,000
Payment being made to a claimant by or on behalf of the company					217	308
Payment being made to a claimant by or on behalf of the company, percentage					18.00%	13.00%
Loss Contingency, Damages Awarded, Value				35.0			32.5
Loss Contingency, Claims Settled and Dismissed, Number					1,200	2,400
Company paid in defense and indemnity in advance of insurers reimbursement				264.6	264.6
Cash and notes received from insurers				124.8	124.8
Outstanding balance to be fully recovered				139.8	139.8	111.0
Outstanding balance expected to be recovered in the next twelve months				20.0	20.0
Assets:
Prepayments and other current assets				0	0	0
Other non-current assets				109.0	109.0	85.6
Total insurance assets				109.0	109.0	85.6
Liabilities:
Accounts payable and accrued expenses				44.1	44.1	36.5
Other non-current liabilities				64.9	64.9	49.1
Total accrued liabilities				$ 109.0	$ 109.0	$ 85.6