Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Narrative) (Details)

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Fair Value Measurements (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2012
Territory Ahead [Member]
Jun. 30, 2012
Territory Ahead [Member]
Dec. 31, 2012
Fair Value Adjustment [Member]
Dec. 31, 2012
Loss From Discontinued Operations, Net Of Tax [Member]
Fair Value Adjustment [Member]
Fair Value Measurements Of Financial Instruments [Line Items]          
Impairment charge $ 6.0 $ 5.9 $ 5.9    
Impairment charge, net of tax 3.8        
Fair value adjustments for indefinite-lived intangible assets       2.2  
Fair value adjustments for long lived assets         $ 0.8