XML 47 R40.htm IDEA: XBRL DOCUMENT v2.4.0.6
Employee Retirement Plans (Tables)
 3 Months Ended
Mar. 31, 2013
Compensation and Retirement Disclosure [Abstract]  
Components of net retirement cost
The following table summarizes the components of net retirement cost for the Company:
 
Three Months Ended
March 31,
 
2013
 
2012
 
(in millions)
Expense Components
 
 
 
Service cost
$
0.3

 
$
0.2

Interest
4.7

 
4.8

Expected return on plan assets
(6.6
)
 
(5.6
)
Amortization of actuarial loss
1.2

 
0.9

Defined benefit expense
(0.4
)
 
0.3

Profit sharing
3.1

 
2.6

Net expense
$
2.7

 
$
2.9