Goodwill And Other Intangible Assets, Net (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2011	Dec. 31, 2009
Goodwill And Other Intangible Assets, Net [Abstract]
Non-cash goodwill impairment charge	$ 5.8	$ 565.0	$ 570.8
Additional estimated impairment charges		9.1	9.1
Deferred tax benefit recognized on additional impairment charges	2.0		2.0
Deferred tax benefit as result of total amount of estimated impairment charges	141.5	139.5	141.5
Adjustments related to acquisitions of TLC				5.0
Business acquisition allocation of intangible assets				7.5
Decrease in fair value of the deferred tax liability assumed				$ 2.9