XML 32 R7.htm IDEA: XBRL DOCUMENT v2.4.0.6
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME    
Tax benefit on unrealized (loss) gain on interest rate swap $ 0.4 $ 1.6