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Commitments and Contingencies (Details 2) (Stebbins agreement, USD $)
In Millions, unless otherwise specified
1 Months Ended
May 31, 2014
Sep. 30, 2014
Accrued expenses and other current liabilities
Sep. 30, 2014
Other long-term liabilities
Executive Non-Renewal Charge      
Charges in connection with the non-renewal of agreement $ 4.8    
Non-cash expenses related to stock award compensation 1.1    
Unpaid amount of cash portion of the executive non-renewal charge   $ 0.9 $ 2.6