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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
   For the Year Ended December 31,  
(Amounts in thousands, except share and per share amounts)2015 2014 2013  
 Income from continuing operations$ 76,907 $ 67,396 $ 54,663  
 Income from discontinued operations  -   529   2,252  
 Net income – basic and diluted$ 76,907 $ 67,925 $ 56,915  
             
 Weighted average shares outstanding – basic and diluted  5,112,352   5,110,628   5,109,055  
             
 Income from continuing operations$ 15.04 $ 13.19 $ 10.70  
 Income from discontinued operations  -   0.10   0.44  
 Net income per common share – basic and diluted$ 15.04 $ 13.29 $ 11.14