v2.3.0.11
Asset Acquisition (Details) (USD $)
In Millions
1 Months Ended
Jun. 30, 2011
Feb. 28, 2011
Nov. 30, 2010
Oct. 31, 2010
Significant Acquisitions        
Asset Acquisition, Purchase Price       $ 49.2
Asset Acquisition, Cash Payments   8.0 41.1  
Asset Acquisition, Purchase Price Adjustment 0.5      
Asset Acquisition, Acquired Property and Equipment, Amount       35.6
Asset Acquisition, Acquired Intangible Assets, Amount       $ 13.6