v2.3.0.15
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 8.041.1 
Asset Acquisition, Purchase Price Adjustment0.5   
Asset Acquisition, Acquired Property and Equipment, Amount   35.6
Asset Acquisition, Acquired Intangible Assets, Amount   $ 13.6