XML 76 R68.htm IDEA: XBRL DOCUMENT v2.4.0.6
Goodwill And Other Intangible Assets (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Goodwill And Other Intangible Assets [Abstract]      
Intangible asset amortization expense $ 1.4 $ 0.8 $ 0.9
Estimated amortization of intangible assets, 2012 2.0    
Estimated amortization of intangible assets, 2013 2.0    
Estimated amortization of intangible assets, 2014 1.9    
Estimated amortization of intangible assets, 2015 1.8    
Estimated amortization of intangible assets, 2016 $ 1.8