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Retirement Plans
 6 Months Ended
Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]  
Retirement Plans
Retirement Plans
Pension Plans
During the three and six months ended June 30, 2015, we contributed $0.3 million and $0.6 million to our worldwide pension plans, respectively. We presently anticipate contributing up to $0.5 million to fund our worldwide pension plans during the remainder of 2015.
During the six months ended June 30, 2014, we recorded a curtailment gain in the amount of $0.7 million relating to our pension plan in Japan. This amount was recorded to restructuring and other in our Condensed Consolidated Statements of Operations.
Components of net periodic pension (credit) cost included the following:
 
 
United States
 
International
 
United States
 
International
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
(In millions)
 
2015
 
2014
 
2015
 
2014
 
2015
 
2014
 
2015
 
2014
Service cost
 
$
—

 
$
—

 
$
0.1

 
$
0.1

 
$
—

 
$
—

 
$
0.2

 
$
0.2

Interest cost
 
0.7

 
0.8

 
0.1

 
0.2

 
1.4

 
1.6

 
0.2

 
0.4

Expected return on plan assets
 
(1.0
)
 
(1.2
)
 
(0.2
)
 
(0.2
)
 
(2.0
)
 
(2.4
)
 
(0.4
)
 
(0.4
)
Amortization of net actuarial loss
 
0.3

 
0.3

 
0.1

 
0.1

 
0.6

 
0.6

 
0.2

 
0.1

Amortization of prior service credit
 
—

 
—

 
—

 
(0.1
)
 
—

 
—

 
—

 
(0.1
)
Net periodic pension (credit) cost
 
$
—

 
$
(0.1
)
 
$
0.1

 
$
0.1

 
$
—

 
$
(0.2
)
 
$
0.2

 
$
0.2

Settlement loss
 
—

 
0.6

 
—

 
—

 
—

 
0.6

 
—

 
—

Curtailment gain
 
—

 
—

 
—

 
—

 
—

 
—

 
—

 
(0.7
)
Total pension (credit) cost
 
$
—

 
$
0.5

 
$
0.1

 
$
0.1

 
$
—

 
$
0.4

 
$
0.2

 
$
(0.5
)