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ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)
 3 Months Ended
Mar. 31, 2013
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]  
Components of accumulated other comprehensive income, net of tax
The components of accumulated other comprehensive (loss) income at March 31, 2013 and December 31, 2012, net of tax, are as follows:
 
March 31,
2013
 
December 31,
2012
 
(In thousands)
Foreign currency translation adjustments
$
3,944

 
$
11,627

Actuarial loss related to defined benefit pension plans
(5,081
)
 
(5,066
)
Net unrealized loss on investments
(488
)
 
(149
)
Total accumulated other comprehensive (loss) income
$
(1,625
)
 
$
6,412