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RETIREMENT BENEFIT PLANS
 6 Months Ended
Jun. 30, 2013
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
RETIREMENT BENEFIT PLANS
RETIREMENT BENEFIT PLANS
The Company maintains defined benefit pension plans that cover employees in its manufacturing plants located in Andover, United Kingdom (the “UK Plan”) and Tuttlingen, Germany (the “Germany Plan”). The Company closed the Tuttlingen, Germany plant in December 2005. The Company did not terminate the Germany Plan, and the Company remains obligated for the accrued pension benefits related to this plan. Effective March 31, 2011, the Company froze the benefits due to the participants of the UK Plan in their entirety; this curtailment resulted in a $0.3 million reduction in the projected benefit obligations which the Company recorded on that date. The plans cover certain current and former employees.
Net periodic benefit costs for the Company’s defined benefit pension plans included the following amounts:
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2013
 
2012
 
2013
 
2012
 
(In thousands)
Service cost
$
—

 
$
6

 
$
—

 
$
12

Interest cost
136

 
161

 
273

 
321

Return on plan assets
(100
)
 
(145
)
 
(200
)
 
(289
)
Net period benefit cost
$
36

 
$
22

 
$
73

 
$
44



The Company made $0.4 million of contributions to its defined benefit pension plans during the six months ended June 30, 2013 and 2012.