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Consolidated Statements of Changes in Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment [Member]
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Retained Earnings [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Treasury Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning Balance at Dec. 31, 2017 $ 497,911   $ 797 $ 260,515 $ 922,178   $ (682,284) $ (3,295)  
Beginning Balance (ASU 2016-01 [Member]) at Dec. 31, 2017   $ 3,220       $ 3,220      
Beginning Balance (ASU 2014-09 [Member]) at Dec. 31, 2017   278       278      
Beginning Balance, Shares at Dec. 31, 2017     79,652            
Net income (loss) (19,342)       (19,342)        
Other comprehensive income (loss), net of tax (11,121)             (11,121)  
Dividend payments ($0.09 per share) (17,267)       (17,267)        
Dividends accrued on unvested restricted stock units (7)       (7)        
Stock options exercised 1,483       (603)   2,086    
PSUs, RSUs and restricted stock vested (499)       (4,482)   3,983    
Purchase of treasury stock (15,532)           (15,532)    
Stock-based compensation expense 7,155     7,155          
Ending Balance at Dec. 31, 2018 446,279   $ 797 267,670 883,975   (691,747) (14,416)  
Ending Balance (ASU 2016-02 [Member]) at Dec. 31, 2018   $ 4       4      
Ending Balance (ASU 2018-02 [Member]) at Dec. 31, 2018           $ (385)     $ 385
Ending Balance, Shares at Dec. 31, 2018     79,652            
Net income (loss) (52,982)       (52,982)        
Other comprehensive income (loss), net of tax (2,386)             (2,386)  
Dividend payments ($0.09 per share) (17,212)       (17,212)        
Dividends accrued on unvested restricted stock units (10)       (10)        
Stock options exercised 526       (208)   734    
PSUs, RSUs and restricted stock vested (571)       (6,480)   5,909    
Purchase of treasury stock (184)           (184)    
Stock-based compensation expense 6,962     6,962          
Ending Balance at Dec. 31, 2019 380,426   $ 797 274,632 806,702   (685,288) (16,417)  
Ending Balance (ASU 2018-02 [Member]) at Dec. 31, 2019 $ 385                
Ending Balance, Shares at Dec. 31, 2019 79,652   79,652            
Net income (loss) $ 2,378       2,378        
Other comprehensive income (loss), net of tax 4,778             4,778  
Dividend payments ($0.09 per share) (17,334)       (17,334)        
Dividends accrued on unvested restricted stock units (180)       (180)        
Deferred compensation adjustments, net of tax (2,806)           (2,806)    
PSUs, RSUs and restricted stock vested (1,152)       (9,753)   8,601    
Stock-based compensation expense 6,834     6,834          
Ending Balance at Dec. 31, 2020 372,944   $ 797 $ 281,466 $ 781,813   $ (679,493) $ (11,639)  
Ending Balance (ASU 2018-02 [Member]) at Dec. 31, 2020 $ 385                
Ending Balance, Shares at Dec. 31, 2020 79,652   79,652