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Note 6 - Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2011
Fair Value, Measurement Inputs, Disclosure [Table Text Block]
   
Carrying
Value
   
Estimated
Fair Value
 
Revolving line of credit
  $ 15.0     $ 15.0  
Term loan
  $ 200.0     $ 200.0  
Senior notes
  $ 449.3     $ 476.4