XML 82 R63.htm IDEA: XBRL DOCUMENT v2.4.0.8
Derivative Instruments And Hedging Activities (Effect Of Derivative Financial Instruments On The Statements Of Income And Comprehensive Income) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Interest Rate Cap [Member] | Not-Designated [Member] | Other Income Loss [Member]
    
Amount of (Loss) Recognized in Statements of Income $ (0.1) $ (0.1)
Interest Rate Swap [Member] | Cash Flow Hedge [Member] | Interest Expense [Member]
    
Unrealized (Loss) Recognized in Other Comprehensive Income ("OCI") on Derivative (Effective Portion)   (2.7) [1]
Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)   9.9 [1]
Amount of Loss Recognized in Statements of Income (Discontinuation, Ineffective Portion and Amount Excluded from Effectiveness Testing)   29.8 [1]
Interest Rate Swap [Member] | Not-Designated [Member] | Other Income Loss [Member]
    
Amount of (Loss) Recognized in Statements of Income $ (0.7) $ (0.2)
[1] (1) The results include the interest rate swap gain (loss) prior to discontinuation in May 2011.