Fair Value (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012
Assets
Assets Balance	$ 1.1
Liabilities
Liabilities Balance	(3.5)
Commodity Futures Contracts [Member]
Assets
Assets Balance	0.9
Liabilities
Liabilities Balance	(0.2)
Foreign Currency Derivatives [Member]
Assets
Assets Balance	0.2
Liabilities
Liabilities Balance	(3.3)
Level 1 [Member]
Assets
Assets Balance	0
Liabilities
Liabilities Balance	0
Level 1 [Member] | Commodity Futures Contracts [Member]
Assets
Assets Balance	0
Liabilities
Liabilities Balance	0
Level 1 [Member] | Foreign Currency Derivatives [Member]
Assets
Assets Balance	0
Liabilities
Liabilities Balance	0
Level 2 [Member]
Assets
Assets Balance	1.1
Liabilities
Liabilities Balance	(3.5)
Level 2 [Member] | Commodity Futures Contracts [Member]
Assets
Assets Balance	0.9
Liabilities
Liabilities Balance	(0.2)
Level 2 [Member] | Foreign Currency Derivatives [Member]
Assets
Assets Balance	0.2
Liabilities
Liabilities Balance	(3.3)
Level 3 [Member]
Assets
Assets Balance	0
Liabilities
Liabilities Balance	0
Level 3 [Member] | Commodity Futures Contracts [Member]
Assets
Assets Balance	0
Liabilities
Liabilities Balance	0
Level 3 [Member] | Foreign Currency Derivatives [Member]
Assets
Assets Balance	0
Liabilities
Liabilities Balance	$ 0