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Restructuring and Related Charges (Details Textual) (USD $)
In Millions, unless otherwise specified
54 Months Ended 30 Months Ended 6 Months Ended
Sep. 30, 2013
Fiscal 2009 Restructuring Plan [Member]
Sep. 30, 2013
Fiscal 2012 Restructuring Plan [Member]
Sep. 30, 2013
Restructuring Plan Fiscal Two Zero One Four [Member]
Restructuring Charges (Textual) [Abstract]      
Restructuring and related charges   $ 12.1  
Restructuring charges 19.0   0.5
Liability on restructuring activity 0.1    
Remaining severance, other employment costs, and facilities     $ 0.2