Annual report pursuant to Section 13 and 15(d)

ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details)

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ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Components of accumulated other comprehensive income (loss)      
Balance at the beginning of the period $ (32,490) $ (32,127)  
Change during the period      
Before-tax amount (25,622) (590)  
Tax benefit/(expense) 10,022 227  
Net of tax (15,600) (363) 2,631
Balance at the end of the period (48,090) (32,490) (32,127)
Pension Liability Adjustment
      
Components of accumulated other comprehensive income (loss)      
Balance at the beginning of the period (38,077) (36,888)  
Change during the period      
Before-tax amount (24,497) (1,933)  
Tax benefit/(expense) 9,605 744  
Balance at the end of the period (52,969) (38,077)  
Foreign Currency Translation
      
Components of accumulated other comprehensive income (loss)      
Balance at the beginning of the period 5,587 4,761  
Change during the period      
Before-tax amount (1,125) 1,343  
Tax benefit/(expense) 417 (517)  
Balance at the end of the period $ 4,879 $ 5,587