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Pension Expense
 9 Months Ended
Sep. 07, 2013
Compensation and Retirement Disclosure [Abstract]  
Pension Expense
PENSION EXPENSE
A summary of net pension and Supplemental Executive Retirement Plan expense recognized by the Company is as follows:
 
12 Weeks Ended
 
36 Weeks Ended
 
September 7,
2013
 
September 8,
2012
 
September 7,
2013
 
September 8,
2012
Service cost pertaining to benefits earned during the period
$
2.0

 
$
1.8

 
$
6.2

 
$
5.3

Interest cost on projected benefit obligations
4.3

 
3.3

 
13.0

 
9.9

Expected return on pension assets
(4.8
)
 
(3.4
)
 
(14.5
)
 
(10.3
)
Net amortization loss
7.1

 
4.8

 
21.1

 
14.5

Net pension expense
$
8.6

 
$
6.5

 
$
25.8

 
$
19.4