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Share-Based Compensation (Summary of Restricted Stock Unit and Stock Option Activity) (Details) - $ / shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
RSUs and CPSUs Number of Shares      
Vested/exercised (in shares) 0 0  
RSUs and CPSUs Weighted-Average Grant Date Fair Value Per Share      
Vested/exercised, weighted average grant date fair value (in dollars per share) $ 0 $ 0  
Stock Options Number of Shares      
Outstanding, beginning of period (in shares) 2,167,765 2,275,265 2,279,015
Granted (in shares) 0 100,000 165,000
Expired or cancelled (in shares) (542,500) (202,500) (168,750)
Vested/exercised (in shares) 0 (5,000) 0
Outstanding, end of period (in shares) 1,625,265 2,167,765 2,275,265
Vested and expected to vest, outstanding, (in shares) 1,530,265    
Stock Options Weighted-Average Grant Date Fair Value Per Share      
Outstanding, beginning of period, weighted average exercise/(strike) price per share (in dollars per share) $ 20.11 $ 20.13 $ 20.62
Granted, weighted average exercise/(Strike) price per share (in dollars per share) 0 19.24 19.24
Expired or cancelled, weighted average exercise/(strike) Price per share (in dollars per share) 11.66 20.07 25.87
Vested/exercised, weighted average exercise/(strike) price per share (in dollars per share) 0 13.32 0
Outstanding, end of period, weighted average exercise/(strike) price per share (in dollars per share) 22.93 $ 20.11 $ 20.13
Vested and expected to vest, outstanding, weighted average exercise price (in dollars per share) $ 23.31    
Restricted Stock Units      
RSUs and CPSUs Number of Shares      
Outstanding, beginning of period (in shares) 1,188,851 1,035,000 1,715,000
Units granted (in shares) 375,769 678,851 245,000
Expired or cancelled (in shares) (42,500) (155,000) (403,750)
Vested/exercised (in shares) (415,450) (370,000) (521,250)
Outstanding, end of period (in shares) 1,106,670 1,188,851 1,035,000
Vested and expected to vest, outstanding (in shares) 1,011,670    
RSUs and CPSUs Weighted-Average Grant Date Fair Value Per Share      
Outstanding, beginning of period, weighted average grant date fair value (in dollars per share) $ 18.98 $ 21.85 $ 25.19
Granted, weighted average grant date fair value (in dollars per share) 10.53 16.26 20.67
Expired or cancelled, weighted average grant date fair value (in dollars per share) 19.27 15.37 25.52
Vested/exercised, weighted average grant date fair value (in dollars per share) 20.14 23.53 29.44
Outstanding, end of period, weighted average grant date fair value (in dollars per share) 15.66 $ 18.98 $ 21.85
Vested and expected to vest, outstanding, weighted average exercise price (in dollars per share) $ 15.27    
Cash-settled Performance Stock Units      
RSUs and CPSUs Number of Shares      
Outstanding, beginning of period (in shares) 398,852 0 0
Units granted (in shares) 415,768 398,852 0
Expired or cancelled (in shares) 0 0 0
Vested/exercised (in shares)     0
Outstanding, end of period (in shares) 814,620 398,852 0
Vested and expected to vest, outstanding (in shares) 100,000    
RSUs and CPSUs Weighted-Average Grant Date Fair Value Per Share      
Outstanding, beginning of period, weighted average grant date fair value (in dollars per share) $ 20.39 $ 0 $ 0
Granted, weighted average grant date fair value (in dollars per share) 12.99 20.39 0
Expired or cancelled, weighted average grant date fair value (in dollars per share) 0 0 0
Vested/exercised, weighted average grant date fair value (in dollars per share)     0
Outstanding, end of period, weighted average grant date fair value (in dollars per share) 16.61 $ 20.39 $ 0
Vested and expected to vest, outstanding, weighted average exercise price (in dollars per share) $ 6.99