Annual report pursuant to Section 13 and 15(d)

ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details)

v3.6.0.2
ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Components of accumulated other comprehensive income (loss)      
Balance at the beginning of the period $ (71,178) $ (65,488)  
Change during the period      
Before-tax amount 2,443 36  
Tax benefit/(expense) (1,340) (5,726)  
Other comprehensive loss 1,103 (5,690) $ (33,717)
Balance at the end of the period (70,075) (71,178) (65,488)
Pension Liability Adjustment [Member]      
Components of accumulated other comprehensive income (loss)      
Balance at the beginning of the period (50,905) (59,975)  
Change during the period      
Before-tax amount 3,045 14,796  
Tax benefit/(expense) (1,340) (5,726)  
Other comprehensive loss 1,705 9,070  
Balance at the end of the period (49,200) (50,905) (59,975)
Foreign Currency Translation [Member]      
Components of accumulated other comprehensive income (loss)      
Balance at the beginning of the period (20,273) (5,513)  
Change during the period      
Before-tax amount (602) (14,760)  
Tax benefit/(expense)  
Other comprehensive loss (602) (14,760)  
Balance at the end of the period $ (20,875) $ (20,273) $ (5,513)