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Employee Benefit Plans (Tables)
 6 Months Ended
Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]  
Schedule of Defined Benefit Plans Disclosures
The following table provides the components of the net periodic income of the qualified defined-benefit pension plan for the three and six months ended June 30, 2014 and 2013 (in millions):

Three Months Ended

Six Months Ended

June 30,

June 30,

2014

2013

2014
 
2013
PENSION BENEFITS







Interest cost
$
0.4


$
0.4


$
0.8


$
0.8

Expected return on plan assets
(0.6
)

(0.6
)

(1.2
)

(1.2
)
Amortization of net actuarial loss
0.1


0.2


0.2


0.3

Net periodic benefit income
$
(0.1
)

$
—


$
(0.2
)

$
(0.1
)