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GOODWILL AND INTANGIBLE ASSETS (DETAILS) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Goodwill [Roll Forward]    
Goodwill net balance, opening $ 49,297 $ 42,237
Foreign currency translation, goodwill 53 7,060
Goodwill net balance, closing 49,350 49,297
Goodwill, gross 42,237  
Accumulated foreign currency translation, goodwill 7,113  
Accumulated impairment charges, goodwill 0  
Goodwill, net 49,350 49,297
Intangible Assets with an Indefinite-life [Roll Forward]    
Intangible assets with an indefinite life net balance, opening 26,036 26,036
Foreign currency translation, intangible assets with an indefinite life 0 0
Intangible assets with an indefinite life net balance, closing 26,036 26,036
Intangible assets with an indefinite life, gross 26,036  
Accumulated foreign currency tranlation, intangible assets with an indefinite life 0  
Accumulated impairment charges, intangible assets with an indefinite life 0  
Intangible assets with an indefinite life, net 26,036 26,036
Intangible Assets with a Finite Life [Roll Forward]    
Intangible assets with a finite life net balance, opening 27,898 23,232
Amortization, intangible assets with a finite life (3,717) (2,670)
Foreign currency translation, intangible assets with a finite life 23 7,336
Intangible assets with a finite life net balance, closing 24,204 27,898
Intangible assets with finite life, gross 35,596  
Accumulated amortization, intangible assets with a finite life (18,751)  
Accumulated foreign currency translation of intangible assets with a finite life 7,359  
Accumulated impairment charges, intangible assets with a finite life 0  
Intangible assets with a finite life, net 24,204 27,898
Goodwill And Intangible Assets [Roll Forward]    
Goodwill and intangible assets net balance, opening 103,231 91,505
Amortization, intangible assets with a finite life (3,717) (2,670)
Foreign currency translation, goodwill and intangible assets 76 14,396
Goodwill and intangible assets net balance, closing 99,590 103,231
Goodwill and intangible assets, gross 103,869  
Accumulated amortization, goodwill and intangible assets 18,751  
Accumulated foreign currency translation, goodwill and intangible assets 14,472  
Accumulated impairment charges, goodwill and intangible assets 0  
Goodwill and intangible assets, net $ 99,590 $ 103,231