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Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Basic Net Earnings Per Common Share [Abstract]    
Earnings from continuing operations $ 9,621 $ 13,104
Loss from discontinued operations (994) (888)
Net earnings available to common stockholders $ 8,627 $ 12,216
Weighted average common shares outstanding (in shares) 22,438,087 22,421,795
Earnings from continuing operations per common share (in dollars per share) $ 0.43 $ 0.58
Loss from discontinued operations per common share (in dollars per share) (0.05) (0.04)
Net earnings per common share - Basic (in dollars per share) $ 0.38 $ 0.54
Diluted Net Earnings Per Common Share [Abstract]    
Earnings from continuing operations $ 9,621 $ 13,104
Loss from discontinued operations (994) (888)
Net earnings available to common stockholders $ 8,627 $ 12,216
Weighted average common shares outstanding (in shares) 22,438,087 22,421,795
Plus incremental shares from assumed conversions [Abstract]    
Dilutive effect of restricted stock and performance stock (in shares) 431,000 483,000
Weighted average common shares outstanding - Diluted (in shares) 22,868,975 22,905,364
Earnings from continuing operations per common share (in dollars per share) $ 0.42 $ 0.57
Loss from discontinued operations per common share (in dollars per share) (0.04) (0.04)
Net earnings per common share - Diluted (in dollars per share) $ 0.38 $ 0.53
Restricted and Performance Shares [Member]    
Earnings Per Share[Abstract]    
Antidilutive securities excluded from computation of earnings per share (in shares) 253,000 252,000