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Discontinued Operations (Details) (USD $)
In Millions
3 Months Ended12 Months Ended
Apr. 03, 2009
Sep. 30, 2011
Oct. 01, 2010
Oct. 02, 2009
Discontinued Operations [Abstract]    
Proceeds from the sale of business$ 0.4   
Additional costs recognized for customer contracts 9.77.1 
Total loss from discontinued operations 9.77.112.5
Tax effect on total losses of Research Instruments 000
Disposal loss included in loss from discontinued operations   8.1
Revenues, reported in discontinued operations $ 0$ (3.6)$ 9.8