Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details) (USD $)
In Millions, unless otherwise specified
0 Months Ended 1 Months Ended
May 06, 2013
Suit
Nov. 30, 2012
Jul. 31, 2012
claim
Jun. 30, 2013
Dec. 31, 2012
Commitments and Contingencies (Textual) [Abstract]          
Contingent consideration       $ 68.9 $ 20.0
Accrued expenses       5.3  
Other long term liabilities       63.6  
Number of putative class action suits filed 5        
Recovery of compensatory damages   $ 20      
Number of claims included in post-payment audit     183