XML 97 R81.htm IDEA: XBRL DOCUMENT v3.10.0.1
Employee Benefit Plans Employee Benefit Plans 13 (Details) - SERP - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Change in Benefit Obligation:      
Projected benefit obligation at beginning of year $ 24,062 $ 20,783  
Service cost 1,096 930 $ 799
Interest cost 888 893 743
Actuarial (gain) loss (1,104) 1,872  
Benefits/expenses paid (425) (416)  
Projected benefit obligation at end of year 24,517 24,062 $ 20,783
Changes in Plan Assets:      
Fair value of plan assets at beginning of year 0    
Fair value of plan assets at end of year 0 0  
Funded Status:      
Net amount recognized as accrued pension cost $ (24,517) $ (24,062)