Fair Value (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013
Assets
Assets Balance	$ 0.3
Liabilities
Liabilities Balance	(2.0)
Commodity Futures Contracts [Member]
Assets
Assets Balance	0
Liabilities
Liabilities Balance	(1.1)
Foreign Currency Derivatives [Member]
Assets
Assets Balance	0.3
Liabilities
Liabilities Balance	(0.9)
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	0.3
Liabilities
Liabilities Balance	(2.0)
Level 2 [Member] | Commodity Futures Contracts [Member]
Assets
Assets Balance	0
Liabilities
Liabilities Balance	(1.1)
Level 2 [Member] | Foreign Currency Derivatives [Member]
Assets
Assets Balance	0.3
Liabilities
Liabilities Balance	(0.9)
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