Derivative Instruments And Hedging Activities (Cumulative Amount Of Unrecognized Hedge Losses Recorded In AOCI) (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Derivative [Line Items]
Cumulative amount of unrecognized hedge losses recorded in AOCI	$ (3.7)	$ (5.6)
FX Options [Member]
Derivative [Line Items]
Cumulative amount of unrecognized hedge losses recorded in AOCI		(0.2)
Interest Rate Swaps [Member]
Derivative [Line Items]
Cumulative amount of unrecognized hedge losses recorded in AOCI	$ (3.7)	$ (5.4)