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Stock-Based Compensation Plans and Employee Benefits (Restricted Stock Unit Activity) (Details) - Restricted Stock Units (RSUs) [Member] - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Number of Shares      
Non-vested at beginning of period (in shares) 531    
Number of shares granted (in shares) 372    
Vested (in shares) (115)    
Forfeited (in shares) (34)    
Non-vested at end of period (in shares) 754 531  
Weighted Average Grant Date Fair Value Per Share      
Non-vested at beginning of period (in dollars per share) $ 10.85    
Granted (in dollars per share) 18.59 $ 14.68 $ 8.84
Vested (in dollars per share) 9.37    
Forfeited (in dollars per share) 15.67    
Non-vested at end of period (in dollars per share) $ 14.67 $ 10.85  
Non-vested, aggregate intrinsic value $ 19,480 $ 7,885  
Fair value of units vested during period $ 1,700 $ 3,600 $ 1,800