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Pension Plans (Tables)
 6 Months Ended
Jun. 30, 2016
Compensation and Retirement Disclosure [Abstract]  
Schedule of the components of pension (income) expense

    For the Three Months Ended June 30,  
    2016     2015     2016     2015     2016 Total     2015 Total  
($ in thousands)   Pension Plan     Pension Plan     SERP     SERP     Both Plans     Both Plans  
Service cost   $ —       —       27       46       27       46  
Interest cost     376       341       59       51       435       392  
Expected return on plan assets     (675 )     (710 )     —       —       (675 )     (710 )
Amortization of transition obligation     —       —       —       —       —       —  
Amortization of net (gain)/loss     60       —       (9 )     (16 )     51       (16 )
Amortization of prior service cost     —       —       —       —       —       —  
   Net periodic pension (income)/cost   $ (239 )     (369 )     77       81       (162 )     (288 )

 

    For the Six Months Ended June 30,  
    2016     2015     2016     2015     2016 Total     2015 Total  
($ in thousands)   Pension Plan     Pension Plan     SERP     SERP     Both Plans     Both Plans  
Service cost – benefits earned during the period   $ —       —       53       125       53       125  
Interest cost     752       682       118       103       870       785  
Expected return on plan assets     (1,350 )     (1,418 )     —       —       (1,350 )     (1,418 )
Amortization of transition obligation     —       —       —       —       —       —  
Amortization of net (gain)/loss     120       —       (18 )     (47 )     102       (47 )
Amortization of prior service cost     —       —       —       —       —       —  
   Net periodic pension cost (income)   $ (478 )     (736 )     153       181       (325 )     (555 )