XML 58 R4.htm IDEA: XBRL DOCUMENT v2.4.0.6
STATEMENTS OF COMPREHENSIVE INCOME Parenthetical (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Other comprehensive income (loss), net of tax      
Deferred commodity contracts hedging losses reclassified in net income $ 0.9 $ 0.6 $ 0.3
Deferred commodity contracts hedging losses $ (0.2) $ (0.7) $ (1.4)