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INCOME TAXES (Effective Income Tax Rate Reconciliation) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
INCOME TAXES [Abstract]      
Federal rate $ 11,725 $ 8,917 $ 3,677
State taxes, net of federal benefit 518 2,205 (490)
Foreign taxes (454) (4,582) (827)
Foreign Tax Credit (8,236)     
Change in valuation allowance    97 115
Research and development credits (454) 117 (600)
Non-deductible employee compensation 249 395 878
Deferred true-up    873   
Other, net 478 263 (274)
Uncertain tax positions 1,619 301 (939)
Income tax expense $ 5,445 $ 8,586 $ 1,540