XML 18 R54.htm IDEA: XBRL DOCUMENT v2.4.0.6
Debt (Schedule of Deferred Financing Costs) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Deferred Finance Costs, End Balance $ 12.2 $ 10.6
Bank credit facilities [Member]
    
Deferred Finance Costs, Beginning Balance 7.4 0.5
Deferred financing costs, additions 0.5 10.6
Deferred financing costs, amortization (5.5) (3.7)
Deferred Finance Costs, End Balance 2.4 7.4
Convertible notes [Member]
    
Deferred Finance Costs, Beginning Balance 8.1 10.0
Deferred financing costs, amortization (2.6) (1.9)
Deferred Finance Costs, End Balance 5.5 8.1
DOE Loan Guarantee application [Member]
    
Deferred Finance Costs, Beginning Balance 2.5 2.0
Deferred financing costs, additions 4.2 0.5
Deferred Finance Costs, End Balance 6.7 2.5
Deferred financing costs [Member]
    
Deferred Finance Costs, Beginning Balance 10.6 12.0
Deferred financing costs, additions 4.2 0.5
Deferred financing costs, amortization (2.6) (1.9)
Deferred Finance Costs, End Balance $ 12.2 $ 10.6