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Retirement Plans (Tables)
 6 Months Ended
Mar. 25, 2016
Pension Benefits  
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Net Periodic Benefit Cost
The net periodic benefit cost for the Company's defined benefit pension plans was as follows:
 
Three Months Ended
 
Six Months Ended
 
March 25,
2016
 
March 27,
2015
 
March 25,
2016
 
March 27,
2015
Service cost
$
1.0


$
1.2

 
$
2.0

 
$
2.4

Interest cost
4.2


4.4

 
8.4

 
8.9

Expected return on plan assets
(5.1
)

(5.7
)
 
(10.2
)
 
(11.5
)
Amortization of net actuarial loss
2.6


2.4

 
5.2

 
4.7

Amortization of prior service (credit)
(0.1
)

(0.2
)
 
(0.2
)
 
(0.4
)
Plan settlements
3.7

 
1.2

 
3.7

 
1.2

Net periodic benefit cost
$
6.3


$
3.3

 
$
8.9

 
$
5.3