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Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Dec. 31, 2017 $ 497,911 $ 797 $ 260,515 $ 922,178 $ (682,284) $ (3,295)
Beginning Balance, Shares at Dec. 31, 2017   79,652        
Net income (loss) (10,814)     (10,814)    
Adoption of new accounting standards 3,499     3,499    
Other comprehensive loss, net of tax (2,508)         (2,508)
Dividend payments (4,367)     (4,367)    
Dividends accrued on unvested restricted stock units (2)     (2)    
Stock options exercised 369     (150) 519  
PSUs, RSUs and restricted stock vested       (733) 733  
Purchase of treasury stock (10,171)       (10,171)  
Stock-based compensation expense 1,819   1,819      
Ending Balance at Mar. 31, 2018 475,736 $ 797 262,334 909,611 (691,203) (5,803)
Ending Balance, Shares at Mar. 31, 2018   79,652        
Beginning Balance at Dec. 31, 2018 $ 446,279 $ 797 267,670 883,975 (691,747) (14,416)
Beginning Balance, Shares at Dec. 31, 2018 79,652 79,652        
Net income (loss) $ 770     770    
Adoption of new accounting standards 4     (381)   385
Other comprehensive loss, net of tax (854)         (854)
Dividend payments (4,301)     (4,301)    
Dividends accrued on unvested restricted stock units (18)     (18)    
PSUs, RSUs and restricted stock vested (8)     (865) 857  
Purchase of treasury stock (184)       (184)  
Stock-based compensation expense 1,859   1,859      
Ending Balance at Mar. 31, 2019 $ 443,547 $ 797 $ 269,529 $ 879,180 $ (691,074) $ (14,885)
Ending Balance, Shares at Mar. 31, 2019 79,652 79,652