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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Loss [Member]
Retained Earnings [Member]
Common stock, shares, issued at Dec. 31, 2013   43,229,000        
Balance at Dec. 31, 2013 $ 452,481 $ 432 $ (100,000) $ 496,593 $ (55,249) $ 110,705
Treasury stock, shares at Dec. 31, 2013     3,864,000      
Net Income 80,009         80,009
Other comprehensive income (loss) (46,249)       (46,249)  
Common stock issued, shares   53,000        
Common stock issued, value 1 $ 1   0    
Stock-based compensation 5,916     5,916    
Other 230     230    
Common stock, shares, issued at Dec. 31, 2014   43,282,000        
Balance at Dec. 31, 2014 492,388 $ 433 $ (100,000) 502,739 (101,498) 190,714
Treasury stock, shares at Dec. 31, 2014     3,864,000      
Net Income 52,182         52,182
Other comprehensive income (loss) 8,483       8,483  
Common stock issued, shares   131,000        
Common stock issued, value 1 $ 1   0    
Treasury stock, shares acquired     722,911      
Treasury stock, acquired (23,711)   $ (23,711)      
Stock-based compensation 5,825     5,825    
Other $ (498)     (498)    
Common stock, shares, issued at Dec. 31, 2015 43,412,660 43,413,000        
Balance at Dec. 31, 2015 $ 534,670 $ 434 $ (123,711) 508,066 (93,015) 242,896
Treasury stock, shares at Dec. 31, 2015 4,587,000   4,587,000      
Net Income $ 38,254         38,254
Other comprehensive income (loss) 10,003       10,003  
Common stock issued, shares   107,000        
Common stock issued, value 1 $ 1   0    
Treasury stock, shares acquired     580,100      
Treasury stock, acquired (10,268)   $ (10,268)      
Stock-based compensation 8,177     8,177    
Other $ (833)     (833)    
Common stock, shares, issued at Dec. 31, 2016 43,519,647 43,520,000        
Balance at Dec. 31, 2016 $ 580,004 $ 435 $ (133,979) $ 515,410 $ (83,012) $ 281,150
Treasury stock, shares at Dec. 31, 2016 5,167,000   5,167,000