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Defined Benefit Plans (Tables)
 6 Months Ended
Mar. 31, 2013
Compensation and Retirement Disclosure [Abstract]  
Components of Consolidated Net Periodic Benefit and Deferred Compensation Benefit Costs and Contributions Made
The components of consolidated net periodic benefit and deferred compensation benefit costs and contributions made are as follows:
 
Three months ended
 
Six months ended
 
March 31, 2013
 
April 1, 2012
 
March 31, 2013
 
April 1, 2012
Service cost
$
0.9

 
$
0.7

 
$
1.7

 
$
1.3

Interest cost
2.7

 
2.7

 
5.3

 
4.9

Expected return on assets
(2.4
)
 
(2.3
)
 
(4.9
)
 
(3.8
)
Recognized net actuarial loss
0.6

 
0.3

 
1.1

 
0.3

Employee contributions
(0.1
)
 
(0.1
)
 
(0.1
)
 
(0.1
)
   Net periodic benefit expense
$
1.7

 
$
1.3

 
$
3.1

 
$
2.6

Contributions made during period
$
1.2

 
$
1.7

 
$
1.9

 
$
2.6