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Statements of Shareholders' Equity - USD ($)
$ in Thousands
Total
Common Stock
Capital in Excess of Par Value
Retained Earnings
Accumulated Other Comprehensive Loss
Treasury Stock
Beginning balance at Dec. 31, 2020 $ 577,932 $ 544 $ 63,261 $ 723,365 $ (58,653) $ (150,585)
Increase (Decrease) in Stockholders' Equity            
Net income (loss) 17,331     17,331    
Other comprehensive loss (16,872)       (16,872)  
Comprehensive (loss) income 459          
Cash dividends declared (18,469)     (18,469)    
Share-based compensation expense 4,015   4,015      
Delivery of treasury shares:            
RSUs and PSAs (633)   (3,002)     2,369
Employee stock options exercised — net 0   0     0
Ending balance at Sep. 30, 2021 563,304 544 64,274 722,227 (75,525) (148,216)
Beginning balance at Jun. 30, 2021 571,245 544 62,796 720,934 (64,813) (148,216)
Increase (Decrease) in Stockholders' Equity            
Net income (loss) 7,527     7,527    
Other comprehensive loss (10,712)       (10,712)  
Comprehensive (loss) income (3,185)          
Cash dividends declared (6,234)     (6,234)    
Share-based compensation expense 1,478   1,478      
Delivery of treasury shares:            
RSUs and PSAs 0   0     0
Employee stock options exercised — net 0   0     0
Ending balance at Sep. 30, 2021 563,304 544 64,274 722,227 (75,525) (148,216)
Beginning balance at Dec. 31, 2021 542,762 544 64,779 705,600 (80,304) (147,857)
Increase (Decrease) in Stockholders' Equity            
Net income (loss) (159,875)     (159,875)    
Other comprehensive loss (49,399)       (49,399)  
Comprehensive (loss) income (209,274)          
Cash dividends declared (12,534)     (12,534)    
Share-based compensation expense 37   37      
Delivery of treasury shares:            
RSUs and PSAs (1,294)   (5,025)     3,731
Ending balance at Sep. 30, 2022 319,698 544 59,792 533,191 (129,703) (144,126)
Beginning balance at Jun. 30, 2022 389,922 544 62,555 582,687 (111,413) (144,451)
Increase (Decrease) in Stockholders' Equity            
Net income (loss) (49,496)     (49,496)    
Other comprehensive loss (18,290)       (18,290)  
Comprehensive (loss) income (67,786)          
Cash dividends declared 0     0    
Share-based compensation expense (2,382)   (2,382)      
Delivery of treasury shares:            
RSUs and PSAs (57)   (382)     325
Ending balance at Sep. 30, 2022 $ 319,698 $ 544 $ 59,792 $ 533,191 $ (129,703) $ (144,126)