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Earnings per share ("EPS") (Tables)
 12 Months Ended
Dec. 31, 2022
Earnings per share ("EPS") [Abstract]  
Calculation of Basic and Diluted Earnings Per Share
The components of the calculation of basic EPS and diluted EPS are as follows:
 
(Dollars in thousands)
  
2022
    
2021
    
2020
  
Profit/(loss) for the period used for calculation of EPS – basic
  
$
61,520
    
$
(11,521
)
  
$
266,266
  
Interest and amortization on the convertible notes
  
$
-
    
$
-
    
$
6,766
  
Profit/(loss) for the period used for calculation of EPS – dilutive
  
$
61,520
    
$
(11,521
)
  
$
273,032
  
                         
Basic earnings per share:
                        
Weighted average shares outstanding – basic
    
164,692,954
      
169,089,325
      
155,712,886
  
                         
Diluted earnings per share:
                        
Weighted average shares outstanding – basic
    
164,692,954
      
169,089,325
      
155,712,886
  
Dilutive equity awards 1
    
157,137
      
-
      
65,873
  
Dilutive shares related to convertible notes
    
-
      
-
      
14,275,217
  
Weighted average shares outstanding – dilutive
    
164,850,091
      
169,089,325
      
170,053,975
  

1
 In 2022, 2021, and 2020, equity awards of nil, 77,546 and nil, respectively, were excluded from the calculation of the dilutive weighted average shares outstanding due to being anti-dilutive.