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PENSION PLANS (Tables)
 12 Months Ended
Dec. 31, 2012
Pension and Other Postretirement Benefit Expense [Abstract]  
Aggregate net pension expense relating to the two plan types
The aggregate net pension expense relating to these two plans are as follows:
 
 
Years Ended
 
December 31,
2012
 
December 31,
2011
 
December 31,
2010
 
(In thousands)
Service costs
$
1,290

 
$
1,289

 
$
1,577

Interest cost
1,447

 
1,326

 
1,568

Amortization of actuarial (gain) loss
(55
)
 
67

 
(49
)
Settlement and other related (gains) losses
(12
)
 
(726
)
 
1,149

Net pension period cost
$
2,670

 
$
1,956

 
$
4,245
Schedule of change in projected benefit obligation and accumulated benefit obligation
The change in projected benefit obligation during the years ended December 31, 2012 and 2011 and the accumulated benefit obligation at December 31, 2012 and 2011, were as follows:
 
December 31, 2012
 
December 31, 2011
 
(In thousands)
Projected benefit obligation at beginning of the year
$
29,751

 
$
26,898

Service costs
1,290

 
1,289

Interest costs
1,447

 
1,326

Transfer of obligation upon sale
—

 
(91
)
Settlement
(12
)
 
(726
)
Amendments and plan transfers
—

 
422

Actuarial loss
9,196

 
199

Benefits paid
(360
)
 
(182
)
Foreign currency exchange rate changes
(691
)
 
616

Projected benefit obligation at end of the year
$
40,621

 
$
29,751

Accumulated benefit obligation at end of the year
$
34,216

 
$
24,069
Schedule of actuarial assumptions used to deteremine benefit obligations for the plans
Actuarial assumptions used to determine benefit obligations for the plans were as follows:
 
Years Ended
 
December 31, 2012
 
December 31, 2011
 
December 31, 2010
Assumed discount rate
2.7-3.9%
 
4.6-5.3%
 
4.7-5.0%
Assumed compensation rate of increase
2.4-3.0%
 
2.5-3.0%
 
2.1-4.0%
Schedule of future estimated expected benefit payments over the next ten years
Future estimated expected benefit payments over the next 10 years are as follows:
Years Ending December 31:
 
 
(In thousands)
2013
$
544

2014
535

2015
596

2016
1,143

2017
1,003

2018 through 2022
9,465

 
$
13,286