Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details)

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Summary of Significant Accounting Policies (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 30, 2013
Jun. 30, 2013
Sep. 30, 2012
Summary of Significant Accounting Policies      
Revenue from long-term manufacturing contracts as a percentage of total revenue for the Company 25.00% 20.00%  
Derivative instruments and hedging activity      
Aggregate notional amount of foreign currency exchange forward contracts $ 125.0 $ 125.0 $ 46.0
Foreign currency exchange forward contracts, liabilities at fair value 1.6 1.6 0.4
Foreign currency exchange forward contracts, assets at fair value $ 0.7 $ 0.7 $ 0
Maximum
     
Derivative instruments and hedging activity      
Term of foreign currency exchange forward contracts   24 months  
Minimum
     
Derivative instruments and hedging activity      
Term of foreign currency exchange forward contracts   1 month