Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details)

v2.4.0.6
Summary of Significant Accounting Policies (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2010
Trade Receivables      
Reserve for trade receivables $ 16.5 $ 21.7  
Inventories:      
Percentage of inventories determined by LIFO method 48.00% 54.00%  
Raw materials and components 39.1 36.0  
Work in process 13.9 10.8  
Finished goods 37.0 36.9  
Total inventories 90.0 83.7  
Difference in valuation if the FIFO method of inventory accounting had been used for all inventories 13.8 12.8  
Properties      
Cost 381.8 376.8  
Accumulated Depreciation (263.9) (256.2)  
Depreciation expense 18.7 19.1 17.2
Land and land improvements
     
Properties      
Cost 16.8 15.5  
Accumulated Depreciation (3.5) (3.5)  
Buildings and building equipment
     
Properties      
Cost 92.5 99.1  
Accumulated Depreciation (55.5) (56.7)  
Buildings and building equipment | Minimum
     
Properties      
Estimated useful lives 6 years    
Buildings and building equipment | Maximum
     
Properties      
Estimated useful lives 40 years    
Machinery and equipment
     
Properties      
Cost 272.5 262.2  
Accumulated Depreciation $ (204.9) $ (196.0)  
Machinery and equipment | Minimum
     
Properties      
Estimated useful lives 3 years    
Machinery and equipment | Maximum
     
Properties      
Estimated useful lives 10 years