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Earnings Per Share (EPS Computations) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Less: Earnings allocated to unvested restricted stock $ 8,844 $ 16,402
Income attributable to common stockholders (71) (15)
Income attributable to common stockholders $ 8,773 $ 16,387
Denominator [Abstract]    
Denominator for basic earnings per common share - weighted average shares outstanding 14,758,000 15,244,000
Weighted average number of common and common equivalent shares outstanding for diluted EPS computation 15,468,000 16,369,000
Basic and Diluted earnings per common share:    
Continuing operations (in dollars per Share) $ 0.59 $ 1.07
Continuing operations (in dollars per Share) $ 0.57 $ 1.00
Antidilutive securities excluded from computation of diluted EPS 1,129,210 0
Stock options    
Denominator [Abstract]    
Effect of dilutive securities, share options (in shares) 99,000 409,000
Performance awards    
Denominator [Abstract]    
Effect of dilutive securities, share options (in shares) 611,000 716,000