Accounts Receivable (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Accounts Receivable, Net, Current [Abstract]
Trade	$ 590.7	$ 506.0
Other	30.8	53.4
Total accounts receivable	621.5	559.4
Less-Allowance for doubtful accounts	(9.2)	(8.9)	(7.2)
Accounts receivable, net	612.3	550.5
Allowance for doubtful accounts [RollForward]
Beginning of year	8.9	7.2	7.1
Write offs less recoveries	(1.0)	(1.4)	(0.9)
Foreign Currency Exchange Rate Translation	(1.4)	(0.9)	0.5
End of year	9.2	8.9	7.2
Continuing Operations [Member]
Allowance for doubtful accounts [RollForward]
Provision for uncollectible accounts receivable	1.7	3.0	1.4
Discontinued Operations
Allowance for doubtful accounts [RollForward]
Provision for uncollectible accounts receivable	$ 1.0	$ 1.0	$ (0.9)