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Revenue From Contracts With Customers (Tables)
 12 Months Ended
Dec. 31, 2018
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue
(dollars in thousands)
 
Years ended December 31,
Revenue Streams (1)
Point of Revenue Recognition
2018

 
2017

 
2016

Service charges on deposit accounts
Over a period of time
$
1,972

 
$
1,984

 
$
1,854

 
At a point in time
11,124

 
10,474

 
10,658

 
 
$
13,096

 
$
12,458

 
$
12,512

 
 
 
 
 
 
 
Debit and credit card
Over a period time
$
656

 
$
537

 
$
1,214

 
At a point in time
12,022

 
11,493

 
10,729

 
 
$
12,679

 
$
12,029

 
$
11,943

 
 
 
 
 
 
 
Wealth management
Over a period of time
$
7,113

 
$
7,067

 
$
7,708

 
At a point in time
2,971

 
2,691

 
2,748

 
 
$
10,084

 
$
9,758

 
$
10,456

 
 
 
 
 
 
 
Other fee revenue
At a point in time
$
3,854

 
$
3,679

 
$
3,854

(1) Refer to Note 1. Summary of significant accounting policies for the types of revenue streams that are included within each category.